Faculty Participant, Refractive Surgery Instructional Course, Las Vegas, Nevada – March 1993

Faculty Member, Pennsylvania Optometric Association, 1993 Keystone Contact Lens Conference, Holiday Inn East, Harrisburg, Pennsylvania – September 1993

Faculty Member, Refractive Surgery Instructional Course, Columbia University Medical School, New York, New York – May 1994

Faculty Member, Northeastern Pennsylvania Optometric Society, “Visual Rehabilitation of the Post-Keratoplasty Patient”, Wilkes-Barre, Pennsylvania – June 1994

Faculty Member, “Nantucket Cornea”, A Refractive Surgical Technique: Use of Mastel’s Radial and Arcuate Blade Guides, New England Eye Center, Tufts University Medical School, Nantucket, Mass. August 1994

Faculty Member, Mastel Precision Surgical Course, “Mini-RK Based Zonal Pachymetry, Two Step Approach and Results in my Hands:, American Society of Cataract and Refractive Surgery, San Diego, March 31, 1995

Course Director, “A Comprehensive Approach to Refractive Surgery”, Northeastern Eye Institute, Scranton, PA – May 5-7, 1995

Faculty Member, “Microbial Keratitis:, International Contact Lens Conference, Atlantic City, NJ June 3-4, 1995

Faculty Member, “Focus on Astigmatism:, Pre-ISRS Symposium, Minneapolis, MN, July 1995

Faculty Member, “Refractive Surgery-What every practitioner needs to Know”, International Contact Lens Conference, Atlantic City, NJ- June 2-3 1996

Co-Contributor, “Well water as a source of Acanthamoeba Keratitis”, H. Namdari, S. Pascucci, E. Battone, American Society for Microbioligy, Miami, Florida – May 1997

Faculty Member, “Mitrobial Keratitis”, International Contact Lens Conference and Regional Meeting of The American Society of Contemporary Ophthalmology, Baltimore, Maryland — May 1998

Poster Presentation, Davis, LJ, Barr, JT, Pierce, GE, Gordon, MO, and the CLEK Study Group. Test-Retest Reliability of Grading the Presence of Vogt’s Striae and Fleischer’s Ring by Photography, The Association for Research in Vision and Ophthalmology, Fort Lauderdale, Florida — May 1998

Poster Presentation, Edrington TB, Szczotka LB, Burger DS, Chun MW, Janoff AM, Olafsson HE, Wilson BS, Gordon MO and the CLEK Study Group, Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: Rigid Contact Lens Fitting Relationships, The Association for Research in Vision and Ophthalmology, Fort Lauderdale, Florida — May 1998

Raasch TW, McMahon TT, Szczotka LB, Friedman NE, Anderson RJ, Davis LJ, and the CLEK Study Group, Fundamental Component Differences in Topography Between Karatoconic and Normal Corneas, The Association for Research in Vision and Ophthalmology, Fort Lauderdale, Florida — May 1998

Walline JJ, Gordon MO, Edrington TB, Bar JT, Zadnik K, and the CLEK Study Group, Quality of Life in Keratoconus, The Association for Research in Vision and Ophthalmology, Fort Lauderdale, Florida – May 1998

Faculty Member, “Microbial Keratitis”, International Contact Lens Conference, Baltimore, MD – May 1998

Faculty Member, “Anterior Segment Complications of Contact Lens Wear”, Association of Technical Personal in Ophthalmology, New Orleans, LA – November 1998

Poster Presentation, Namdari, H., Hughes, J., Pascucci, S.E., Oravitz, B., Flickinger, B.: Mycobacterium chelone Keratitis: Laboratory Diagnosis and Management, ASM, Los Angeles, California – May 2000

Poster Presentation, Pascucci, S, Chandoha, H, “My Early Experience With Conductive Keratoplasty”,

International Society of Refractive Surgery, Orlando, Florida – October 2002

Faculty Member, “Breakfast with the Experts” – Conductive Keratoplasty, American Academy of

Ophthalmology, Orlando, Florida, October 20, 2002

Faculty Member, “Techniques to Maximize Surgical Outcomes Following Cataract and Refractive Surgery, – Anti-infective Symposium, American Academy of Ophthalmology, Orlando, Florida,

October 20, 2002

Faculty Member, “The Muli-focal Effect of Conductive Keratoplaty”- CK Users Conference, Carlsbad, California, March 8, 2003

Faculty Member & Course Co-Director, “Integrating Conductive Keratoplasty Into A Refractive Surgery Practice” – Durrie Vision, Overland Park, Kansas, March 15, 2003

Faculty Member, “Perspectives on Conductive Keratoplasty” – ASCRS, San Francisco, CA,

April 11, 2003.

Presentor, “The Use of Conductive Keratoplasty to Correct Astigmatism” – Scientific Session, ASCRS, San Francisco, CA, April 13, 2003

Faculty Member & Course Co-Director, “Conductive Keratoplasty a New Treatment for Hyperopia” – ASCRS, San Francisco, CA, April 15, 2003

Presentor, “The Use of Conductive Keratoplasty to Correct Astigmatism”, Nantucket Cornea, Nantucket, Mass., July 18, 2003.

Presentor, “Conductive Keratoplasty-The Surgeon’s Perspective” – Refractec, Inc., Irvine, CA, July 28, 2003 **This presentation was for physicians, engineers and business people from the Peoples Repbulic of China about incorporating CK into mainland China**

Faculty Member, “Conductive Keratoplasty: A New Technique for the Correction of Hyperopia” –

ESCRS, Munich, Germany, September 2003

Faculty Member, “Conductive Keratoplasty: A New Technique for the Correction of Hyperopia” –

AAO, Anaheim, Cailfornia, November 2003

Faculty Member & Course Co-Director, “Attracting Presybopic Patients by Incorporating Conductive Keratoplasty” – Los Angelas, California, February 21, 2004

Presentor, “Conductive Keratoplasty – “A Nonlaser Technology to Correct Hyperopia” –

ACES Meeting, Marco Island, Florida, March 2, 2004

Faculty Member & Course Co-Director, “Attracting Presbyopic Patients by Incorporating Conductive Keratoplasty” – Atlanta, Georgia, March 20, 2004

Presentor, “Enhancing Near Vision with CK” – Washington Hospital Center Symposium – “Refractive Surgery and More” – Washington, DC, April 24, 2004

Faculty Member, “Utlizing Zyoptix Advanced Diagnostics” – ASCRS, San Diego, California, April 30, 2004

Paper Presentation, “Spherical Aberration Values as a Predictive Factor in Evaluating Patients for Conductive Keratoplasty” – ASCRS, San Diego, California, May 2, 2004

Paper Presentation, “Conductive Keratoplasty for Presbyopia in Patients with Previous LASIK, PRK or Both” – ASCRS, San Diego, California, May 2, 2004

Course Director, “Conductive Keratoplasty for the Correction of Refractive Errors” – ASCRS, San Diego, California, May 2, 2004

Faculty Member & Course Co-Director, “Attracting Presbyopic Patients by Incorporating Conductive Keratoplasty” – Orlando, Florida, May 22, 2004

Keynote speaker, “Enhancing Near Vision with Conductive Keratoplasty” – New York Society of Refractive Surgery, New York, New York, June 7, 2004

Faculty Member, “Conductive Keratoplasty: Blended Vision” – Cataract and Refractive Surgery Update, Brescia, Italy, June 26, 2004

Faculty Member, “Conductive Keratoplasty: Strategy for Marketing” – Cataract and Refractive Surgery Update, Brescia, Italy, June 26, 2004

Faculty Member, “Conductive Keratoplsty: Clinical Aspects and Diagnostic Evaluations” – Cataract and Refractive Surgery Update, Brescia, Italy, June 26, 2004

Co-Presentor, “Gatifloxacin versus Moxifloxicin: Ocular Surface Effects and Penetration”, Gatifloxacin Advisory Committee, American Academy of Ophthalmology, New Orleans, Louisiana, October 23, 2004

Course Faculty Member, “Conductive Keratoplasty for the Correction of Near Vision”, American Academy of Ophthalmology, New Orleans, Louisiana, October 24, 2004

Co-Presentor, “Differentiating the 4th Generation Fluoroquinolones”, American Academy of Ophthalmology, New Orleans, Louisiana, October 25, 2004

Poster Presentation, Pascucci, S.E., Durrie, D.S., “Conductive Keratoplasty following LASIK”, American Academy of Ophthalmology, New Orleans, Louisiana, October, 2004

Paper Co-Author, “Determination of Corneal Absorption and Penetration of Topical Gatifloxacin”, American Academy of Ophthalmology, New Orleans, Louisiana, October 25, 2004

Faculty Member & Course Co-Director, “Attracting Presbyopic Patients by Incorporating Conductive Keratoplasty” – Philadelphia, Pennsylvania, November 6, 2004

Faculty Member, Refractive Update: “Conductive Keratoplasty – Blended Vision” – American Academt of Optometry, Tampa, Florida, December 11, 2004

Faculty Member, Refractive Update: “Orbscan Advanced Diagnostics” – American Academy of Optometry, Tampa, Florida, December 11, 2004

Invited Grand Rounds Speaker, “Controlling Discomfort Post Prk” – University of South Florida, Tampa, Florida, February 17, 2005

Invited Grand Rounds Speaker, “Fourth Generation Fluoroquinolones – Are There Any Differences?” – University of South Florida, Tampa, Florida, February 17, 2005

Invited Grand Rounds Speaker, “Dry Eye: Where Have We Been, Where Are We Now and Where Are We Going?” – University of South Florida, Tampa, Florida, February 17, 2005

Presenter, “CK for Presbyopia: Strategies for Success” – Wills Eye Annual Conference, Philadelphia, Pennsylvania, March 12, 2005

Prresenter, “CK for Presbyopia: Strategies for Success” – Videorefrattiva – Milan, Italy, March 19, 2005

Poster Presentation, Tinio, B.O., Milne, R., Pascucci, S., Asbell, P.A., “Neutral Pressure Conductive Keratoplasty (NPCK) for the Correction of Hyperopia and Presbyopia,” American Society of Cataract and Refractive Surgeons, Washington, D.C., April 16, 2005

Faculty Member & Course Director, “Conductive Keratoplasty for the Improvement of Near Vision in Presbyopes,” American Society of Cataract and refractive Surgeons, Washington, D.C., April 18, 2005

Paper Presenter, Pascucci, S.E., Durrie, S.E., “Conductive Keratoplasty After IOL Implantation,” American Society of cataract and Refractive Surgery, Washington, D.C., April 18, 2005

Poster Presentation, Pascucci, S.E., A Comparison od 3-Day Versus 1-Hour Prophylaxis With Gatifloxacin 0.3% Prior to Catarct Surgery, The Association for Research in Vision and Ophthalmology, May 1, 2005

Faculty Member, Clinical Update, “Expanded Clinical Applications for CK,” Chicago, IL, May 21, 2005

Faculty Member, “Opportunities in Dry Eye management,” North Carolina Optometric Society, Myrtle Beach, SC, June 3, 2005

Faculty Member, LightTouch CK: A New Surgical Technique, Makina Optik, Kullanici Toplantilari, Antalya, Turkey, June 11, 2005

Conductive Keratoplasty (CK) for the Improvement in Near Vision in Presbyopes, Chennai, India, February 6, 2006

Conductive Keratoplasty (CK) for the Improvement in Near Vision in Presbyopes, Calcutta, India, February 8, 2006

Conductive Keratoplasty (CK) for the Improvement in Near Vision in Presbyopia, Dehli, India, February 10, 2006

My First Experience with the Schwind Corriazo Pendular Microkeratome, American Society of Cataract and Refractive Surgery, San Francisco, CA, March 18, 2006

Course Co-Director, How to Grow a Conductive Keratoplasty Practice, American Society of Cataract and Refractive Surgery, San Francisco, CA, March 19, 2006

Paper Presentation, Accuracy of Measurements Derived by Ultrasound Versus the Pentacam, American Society of cataract and Refractive Surgery, San Francisco, CA, March 19, 2006

Poster Presentation, Comparison of Rates of Epithelial Wound Healing with Gatifloxacin and Moxifloxacin Following Penetrating Keratoplasty, Association for Research in Vision and Ophthalmology, Fort Lauderdale, FL, May 2, 2006

Poster Presentation, Effect of Neutral Pressure Condunctive Keratoplasty Over Six Months in the Treatment of Hyperopia and Presbyopia, Asbell, Tinio, Ahdoot, Milne & Pascucci, Association for Research in Vision and Ophthalmology, Fort Lauderdale, FL, May 2, 2006

Medical Monitor, Collaborative Longitudinal Evaluation of Keratoconus, funded by the National Eye Institute of the National Institute of Health, Washington D.C. (grant #’s U10EY10419, EY10069, EY10077), June 1995 to 2004

Primary Investigator, The Clinical Use of Fibronectin eye drops in the treatment of Keratoconjunctivitis Sicca, Allergan, Inc. 2000 Phase III

Principle Investigator, Corneal Donor Study, funded by the National Eye Institute of the National Institute of Health, Washington, DC, (grant # EY12358) 2000 – 2004

Medical Monitor, A Phase III Multicenter, Randomized, Double-Masked, Parallel Study to Compare the Safety and Efficacy of 0.3% Gatifloxacin Ophthalmic Solution with that of Placebo in the Treatment of Acute Bacterial Conjunctivitis, Allergan Inc., 2001

Medical Monitor, A Multi-Center, Double-Masked, Randomized, Parallel-Group Study to Compare the Efficacy and Safety of Two New Formulations of Emulsion Eye Drops vs. an Emulsion Vehicle Drop for One Month (with a Two Month Masked Extension) in Subjects with Dry Eye (PROTOCOL NUMBER: AG9446-001-00), Allergan, Inc.

Principle Investigator, A Prospective, Randomized, Parallel-Group, Multi-Center, Observer-Masked Trial Comparing the Efficacy and safety of 0.5% Levofloxacin with 1.0% Prenisolone Acetate to 0.5% Levofloxacin monotherapy, 1.0% Prednisolone Monotherapy, and Vehicle, for the Treatment of Peripheral Inflammatory Keratitis, (PROTOCOL NUMBER 19-001), Santeen, Inc.

Primary Investigator, Comparison of the Effects of Gatifloxacin and Moxifloxacin in Patients Undergoing Conjunctival Bacterial Cultures, Supported by an unrestricted research grant from Allergan, Inc., 2003

Co-Investigator, Corneal Absorbtion of Topically Applied Gatifloxacin in Patients Undergoing Corneal Transplantation, Supported by an unrestricted research grant from Allergan, Inc., 2003

Co-Investigator, Conductive Keratoplasty for the Coorection of Near Vision Loss Following LASIK, Supported by an unrestricted grant from Refractec, Inc., 2003-2004

Primary Investigator, The Effects of Conductive Keratoplasty on High Order Abberations, Supported by an unrestricted research grant from Refractec, Inc., 2003-2004

Primary Investigator, The Effects of Single Spot Treatment on Induced Astigmatism Following Conductive Keratoplasty, Supported by an unrestricted research grant from Refractec, Inc., 2003-2004

Primary Investigator, Comparison of Rates of Epithelial Wound Healing with Gatifloxacin and Moxifloxacin Following Corneal Transplantation, Supported by research grant from Allergan, Inc., 2004

Medical Monitor, Collaborative Longitudinal Evaluation of Keratoconus, funded by the National Eye Institute of the National Institute of Health, Washington D.C. (grant #’s U10EY10419, EY10069, EY10077), June 1995 to 2004

Primary Investigator, The Clinical Use of Fibronectin eye drops in the treatment of Keratoconjunctivitis Sicca, Allergan, Inc. 2000 Phase III

Principle Investigator, Corneal Donor Study, funded by the National Eye Institute of the National Institute of Health, Washington, DC, (grant # EY12358) 2000 – 2004

Medical Monitor, A Phase III Multicenter, Randomized, Double-Masked, Parallel Study to Compare the Safety and Efficacy of 0.3% Gatifloxacin Ophthalmic Solution with that of Placebo in the Treatment of Acute Bacterial Conjunctivitis, Allergan Inc., 2001

Medical Monitor, A Multi-Center, Double-Masked, Randomized, Parallel-Group Study to Compare the Efficacy and Safety of Two New Formulations of Emulsion Eye Drops vs. an Emulsion Vehicle Drop for One Month (with a Two Month Masked Extension) in Subjects with Dry Eye (PROTOCOL NUMBER: AG9446-001-00), Allergan, Inc.

Principle Investigator, A Prospective, Randomized, Parallel-Group, Multi-Center, Observer-Masked Trial Comparing the Efficacy and safety of 0.5% Levofloxacin with 1.0% Prenisolone Acetate to 0.5% Levofloxacin monotherapy, 1.0% Prednisolone Monotherapy, and Vehicle, for the Treatment of Peripheral Inflammatory Keratitis, (PROTOCOL NUMBER 19-001), Santeen, Inc.

Primary Investigator, Comparison of the Effects of Gatifloxacin and Moxifloxacin in Patients Undergoing Conjunctival Bacterial Cultures, Supported by an unrestricted research grant from Allergan, Inc., 2003

Co-Investigator, Corneal Absorbtion of Topically Applied Gatifloxacin in Patients Undergoing Corneal Transplantation, Supported by an unrestricted research grant from Allergan, Inc., 2003

Co-Investigator, Conductive Keratoplasty for the Coorection of Near Vision Loss Following LASIK, Supported by an unrestricted grant from Refractec, Inc., 2003-2004

Primary Investigator, The Effects of Conductive Keratoplasty on High Order Abberations, Supported by an unrestricted research grant from Refractec, Inc., 2003-2004

Primary Investigator, The Effects of Single Spot Treatment on Induced Astigmatism Following Conductive Keratoplasty, Supported by an unrestricted research grant from Refractec, Inc., 2003-2004

Primary Investigator, Comparison of Rates of Epithelial Wound Healing with Gatifloxacin and Moxifloxacin Following Corneal Transplantation, Supported by research grant from Allergan, Inc., 2004

Primary Investigator, Fungal Growth on Bottles of Zymar and Vigamox Following Routine Use in Cataract Surgery, Supported by an unrestricetd research grant from Allergan, Inc., 2005-2006

Groden, L.R., Pascucci, S.E., Brisner, J.: Hemophilus Androphilus as a cause of Crystalline Keratopathy, Arch of Ophthalmol

Encyclopedia of Birth Defects, Buyse, M.D., Alan, R., Liss Pub, New York, New York (Section Contribution)

Harris, J.K., Shovlin, J.P., Pascucci, S.E., DePaolis, M.D., Jordan, A.M.: Keratitis Associated with Extended Wear of Disposable Contact Lenses, Contact Lens Spectrum, June 1989

Nelson, J.D., Gordon, J.F., and the Keratoconjunctivitis Sicca Study Group: Topical Fibronectin in the Treatment of Keratoconjunctivitis Sicca, Am J of Ophthalmol, Oct, 1992

Pascucci, S.E.., Shovlin, J.P.: How to Beat Giant Papillary Conjunctivitis, Review of Ophthalmology, June 1994

Pascucci, S.E., Shovlin, J.P.: How to Fit Dry Eye Patients, Review of Ophthalmology, July 1994

Pascucci, S.E., Shovlin, J.P.: Multipurpose Solutions: Use only as Directed, Review of Ophthalmology, October 1994

Aquavella, J., Shovlin, J.P. Pascucci, S.E., DePaolis, M.D.: How Contact Lenses Fit into Refractive surgery, Review of Ophthalmology, December 1994

Gordon, J.F., Johnson, P., Musch, D.C., and the Chiron Vision Fibronectin Study Group: Am J of Ophthalmol, March, 1995

Namdari, H., Pascucci S. E., Bottone, E. J.: Well Water as a Source for Acanthamoeba Keratitis, Clinical Microbiology Newsletter, Novenber, 2000

Pascucci, S.E.: Conductive Keratoplasty vs. Monovision with Contact Lenses, Review of Contact Lenses, May 2003

Pascucci, S.E.: Evaluation and Treatment of Dry Eye in Laser Vision Correction, Clinical and Surgical Ophthalmology, June 2003

Pascucci, S.E. : Evaluation and Treatment of Dry Eye In Laser Vision Correction, Clinical and Surgical Optometry, March 2004

Pascucci, S.E., Sher N.A.: Surgical Correction of Hyperopia, Focal Points Clinical Modules for Ophthalmologists, June 2004

Bailey, M.,Mitchell, G.L., Dhaliwal, D., Wachler, B., Olson, M., Shovlin, J.P., Pascucci, S.E., Zadnick, K.: Reasons Patients Recommend Laser In Situ Keratomileusis, Journal of Cataract and Refractive Surgery, September 2004

Pascucci, S.E., The Role of Topical NSAID Drops in PRK, Cataract & Refractive Surgery Today, September 2004

Pascucci, S.E., Dystrophies vs Degenerations, Review of Contact Lenses, October 2004

Pascucci, S.E., Understanding Dry Eye, Review of Contact Lenses, October 2004

Pascucci, S.E.: Conductive Keratoplasty in Practice, Refractive Eyecare for Ophthalmologists, November 2004

Pinelli, R., Pascucci, S.E., CONDUCTIVE KERATOPLASTY, A Primer, SLACK Incorcporated, Thorofare, N.J. July 2005

Trindale, F., Pascucci, S.E., Keratorefractive Approaches to Achieving Pseudoaccommodation, Chapter Contribution, Ophthalmology Clinics of North America, W. B. Saunders & Co., Philadelphia, PA, March 2006

Pascucci, S.E., Prescribing Fourth-Generation Fluoroquinolones, Review of Cornea and Contact Lenses, May 2006

“Improving Estimates of Sample Yield in Clinical Trials”, CLEK Study Group, Section On Cornea, The Association for Research In Vision & Ophthalmology, Sarasota, May, 1992.

“A Standardized Procedure for Photography and Grading Scarring In Keratoconus”, CLEK Study Group, Cornea Section, The Association for Research In Vision & Ophthalmology, Sarasota, May, 1992.

“A Low Cost Screening Survey to Assess Sample Yield and Refine Study Entry Criteria”, CLEK Study Group, Biostatstics Section, The Association for Research In Vision & Ophthalmology, Sarasota, May 1992.

“Corneal Findings In the Contact Lens Evaluation of Keratoconus”, CLEK Study Group, Cornea Section, The Association for Research In Vision & Ophthalmology, Sarasota, May, 1993.

“Achieving and Maintaining Apical Clearance RGP Contact Lens Fit In Keratoconus”, CLEK Study Group, Poster Presentation, Cornea Section, The Association for Research In Vision & Ophthalmology, Sarasota, May, 1993.

“Scarring and Visual Acuity In Keratoconus”, CLEK Study Group, The Cornea & Contact Lens Section, The American Academy of Optometry, Boston, Dec., 1993.

“Selection of Initial Trial Fitting RGP Lens Base Curve Radius In Keratoconus”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, Boston, Dec., 1993

“Fellow Eyes of Corneal Grafts Are At Risk For Keratoconus Disease Progression”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, Sarasota, May 1994.

“Thirty Keratoconus Patients Randomized To Two Contact Lens Treatment Methods, CLEK Study Group, Contact Lenses & Tears, The Association for Research In Vision & Ophthalmology, Sarastoa, May, 1994.

“Quality of Life In Keratoconus Patients”, CLEK Study Group, Poster Presentation, The Association for Research In Vision & Ophthalmology, Ft. Lauderdale, May, 1995.

“Standardization of Clinical Techniques”, CLEK Study Group, American Academy of Optometry, New Orleans, Dec., 1995.

“A New Measure of Disease Severity In Keratoconus”, CLEK Study Group, Clinical & Epidemiologic Research, The Association for Research In Vision & Ophtalmology, Ft. Lauderdale, May, 1996.

“Recruitment For a Large Scale Clinical Study Via the World Wide Web and Internet”, CLEK Study Group, Clinical & Epidemiologic Research, The Association for Research in Vision & Ophthalmology, Ft. Lauderdale May, 1996.

“Repeatability of Visual Acuity Measurement In Keratoconus”, CLEK Study Group, Section On Cornea & Contact Lenses, The American Academy of Optometry, Orlando, Dec., 1996

“Recruitment For a Long Range Clinical Trial Via the Internet”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, Orlando, Dec., 1996.

“Development of a Grading Protocol To Identify Vogt’s Striae and Fleischer’s Ring In Keratoconus”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, Orlando, Dec., 1996.

“Agreement Between Clinicians and Photograph Readers In the Collaborative Longitdinal Evaluation of Keratoconus”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, Orlando, Dec., 1996

“Visual Acuity Repeatability In Keratoconus”, CLEK Study Group, Poster Presentation, The Association for Research In Vision & Ophthalmology, Ft. Lauderdale, May, 1997.

“Baseline Test-Retest Findings of Corneal Scarring In the CLEK Study”, CLEK Study Group, Poster Presentation, The Association for Research In Vision & Ophthalmology, Ft. Lauderdale, May, 1997.

“Videokeratographic Data Quality and Disease Severity In Keratoconus, CLEK Study Group, Poster Presentation, The Association for Research In Vision & Ophthalmology, Ft. Lauderdale, May 1997.

“Acanthamoeba:Early Diagnosis May Prevent Need For Corneal Transplant, Primary Care Optometry News, Vol 2, No.8, 1997.

“Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: Quality of Life”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, San Antinio, Dec., 1997.

“Repeatability Of Manifest Refraction and Contact Lens Over-Refraction In Keratoconus”, CLEK Study Group, Poster Presentation, The American Academy of Optometry, San Antonio, Dec., 1997.

“Baseline Patient-Reported Findings From the Collaborative Longitudinal Evaluation In Keratoconus (CLEK) Study, CLEK Study Group, Paper Presentaion, The American Academy of Optometry, San Antionio, Dec., 1997

“Qualitiative Features of Corneal Topography in Keratoconus”, CLEK Study Group, Paper Presentation, The American Academy of Optometry, San Antonio, Dec., 1997

“Repeatability of Two Corneal Curvature Assessments In Keratoconus: Keratometry and the First Definite Apical Clearance Lens”, CLEK Study Group, Paper Presentation, The American Academy of Optometry, San Antonio, Dec., 1997.

“Impact of Scarring In Keratoconus”, CLEK Study Group, Paper Presentation, The American Academy of Optometry, San Francisco, Dec., 1998

“Correlation of Corneal Scarring In the Collaborative Longitudinal Evaluation of Keratoconus”, CLEK Study Group, Paper Presentation, The American Academy of Optometry, San Francisco, Dec., 1998

“Collaborative Longitudinal Evaluation of Keratonous Study: Corneal Scarring at the Baseline and Repeatability of Detection”, CLEK Study Group, Paper Presentation, The American Academy of Optometry, San Francsco, Dec., 1998

“Health Related Quality of Life In Keratoconus”, CLEK Study Group. Paper Presentation, The American Academy of Optometry, San Francisco, Dec., 1998

“The Collaborative Longitudinal Evaluation of Keratoconus Study: Piggyback Feasibility Pilot Study” Poster Presentation, The CLEK Study Group, The American Academy of Optometry, San Francisco, Dec., 1998

“Estimating Incident Corneal Scarring In the Longitudinal Evaluation of Keratoconus Study”, Paper Presentation, The CLEK Study Group, The American Academy of Optometry, Seattle, Dec., 1999

“A Comparison of Two Methods of Evaluating Cornea To Contact Lens Base Curve Fluorescein Pattern In Keratoconus”, Poster Session, The CLEK Study Group, The Association for Research In Vision & Ophthalmology, Ft. Lauderdale, May, 2000

“Asymmetry In Keratoconus”, Poster Session, The CLEK Study Group, The Association for Research InVision & Ophthalmology, Ft. Lauderdale, May, 2000.

“Disease Asymmetry In Keratoconus”, Paper Presentation, The CLEK Study Group, The American Academy of Optometry,Orlando, Dec., 2000

“A Technique To Improve the Agreement Between Two Methods of Evaluating Cornea-To-Cornea Lens Base Curve Fluorescein Patterns In the Collaborative Longitudinal Evaluation In Keratoconus”, Poster Session, The American Academyof Optometry, Orlando, Dec., 2000

“Instrument Precision Comparisons For Three Topographers In Keratoconus Subjects”, Poster Session, The CLEK Study Group, Orlando, Dec., 2000.

Barr JT, Pierce GE, Edrington TB, Zadnik K, Gordon MO, the CLEK Study Group. (1997) Baseline test-retest findings of corneal scarring in the CLEK Study. Investigative Ophthalmology & Visual Science (Suppl) 38:S132

Zadnik K, Gordon MO, Schechtman K, Davis LJ, McMahon TT, Schornack JA, and the CLEK Study Group. Visual acuity repeatability in keratoconous. Investigative Ophthalmology & Visual Science (Suppl) 38:S845

Szczotka LB, Friedman NE, Davis LJ, McMahon TT, and the CLEK Study Group. (1997) Videokeratographic data quality and disease severity in keratoconous. Investigative Ophthalmology & Visual Science (Suppl) 38:S1090

Gordon MO, Achtenberg J, Schornack JA, Pensyl CD, Barnhart LA, McMahon TT, Roediger TA, Zadnik K, CLEK Study Group. (1997). Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: quality of life. Optometry and Vision Science (Suppl) 74:94

Davis LJ, Schectman K, Shin JA, Begley CG, Gordon MO, Zadnik K, CLEK Study Group. (1997) Repeatability of manifest refraction and contact lens over-refraction in keratoconus. Optometry and Vision Science (Suppl) 74:147

Zadnik K, Gordon MO, Wagner H, Sterling JL, Shin JA, Jameson M, Everett DF, CLEK Study Group. (1997) Baseline patient-reported findings from the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Optometry and Vision Science (Suppl) 74:148

Raasch TW, Szczotka LB, McMahon TT, Friedman NE, Davis LJ, CLEK Study Group. (1997) Quantitative features of corneal topography in keratoconus. Optometry and Vision Science (Suppl) 74:148

Edrington TB, Szczotka LB, Begley CG, Burger DS, Wilson BS, Zadnik K, Gordon MO, CLEK Study Group. (1997) Repeatability of two corneal curvature assessments in keratoconus: keratometry and the first definite apical clearace lens. Optometry and Vision Science (Suppl) 74:149

Edrington TB, Szczotka LB, Begley CG, Burger DS, Wilson BS, Barr JT, Zadnik, K, the CLEK Study Group. (1998) Repeatability and Agreement of Two Corneal Curvature Assessments in Keratoconus: Keratometry and the First Definite Apical Clearance Lens (FDACL). Cornea: 17:267-277

Gordon MO, Schechtman KB, Davis LJ, McMahon TT, Schornack J, Zadnik K, Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group (1998) Visual acuity repeatability in keratoconus: impact on sample size. Optometry and Vision Science 75:249-257

Barr JT, Zadnik K, Wilson BS, Edrington TB, Everett DF, Fink BA, Shovlin, JP, Weissman BA, Siegmund K, Gordon MO, the CLEK Study Group. (2000) Factors associated with corneal scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Cornea 19:501-50,7 accessed 5/9/03

Zadnik K, Barr JT, Gordon MO, Edrington TB,CLEK Study Group. (1996) Biomicroscopic signs and disease severity in keratoconus. Cornea 15:139-146

Barr Jt, Gordon MO, Zadnik K, Pellican K, Edrington TB, and the Collaborative Longitudinal Evaluation of Keratoconus (CLEK)Study Group. (1996) Photodocumentation of corneal Scarring. Journal of Refractive Surgery 12:492-500

Edrington TB, Barr JT, Zadnik K, Davis LJ, Gundel RE, Libassi DP, McMahon, TT, Grodon MO. (1996) A standardized rigid contact lens fitting protocol for keratoconus. Optometry and Vision Science 73:369-375

Gundel RE, Libassi DP, Davis LJ, McMahon TT, Edrington TB, Zadnik K, Barr JT, Gordon MO. (1996) Feasibility of fitting contact lenses with apicial clearance in keratoconus. Optometry and Vision Science 73:729-732

Zadnik K, Barr JT, Edromgtpm TB, Everett DF, Jameson M, McMahon TT, Sterling JL, Wagner H, Gordon MO, the CLEK Study Group. (1998) Baseline findings in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Investigative Ophthalmology & Visual science 39:2537-2546

Davis LJ, Schechtman KB, Begley CG, Shin JA, Azdnik K, the CLEK Study Group. (1998) Repeatability of refraction and corrected visual acuity in keratoconus. Optometry and Vision Science 75:887-896

Barr JT, Schechtman KB, Fink BA, Pierce GE, Pensyl CD, Zadnik K, Gordon MO, the CLEK Study Group. (1999) Corneal scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: Baseline prevalence and repeatability of detection. Cornea 18:34-46

Edrington TB, SzczotkaLB, Barr JT, Achtenberg JF, Burger DS, Janoff AM, Olafsson HE, Chun MW, Boyle JW, Gordon MO, Zadnik K, and The CLEK Study Group. (1999) Rigig contact lens fitting relationships in keeratoconus. Optometry and Vision Science 76:692-699

Zadnik K, Barr JT, Edrington TB, Nichols JJ, Wilson BS, Siegmund K, Gordon MO, the CLEK Study Group. (2000) Corneal scarring and vision in keratoconus: a baseline report from the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Cornea 19:804-812

McMahon TT, Anderson RJ, Joslin CE, Rosas GA, and the CLEK Topography aqnalysis Group. (2001) Precision of hree topography instruments in keratoconus subjects. Optometry and Vision Science 78:599-604

Fink BA, Barr JT, Edrington TB, Pierce GE, Schechtman KB, Rah MJ, Flom R, Zadnik K, the CLEK Study Group. (2001) A comparison of two methods of evaluating cornea-to-contact lens base curve fluorescein patterns in keratoconus. Optometry and Vision Science 78:589-598

Szczotka LB, Barr JT, Zadnik K, the CLEK Study Group. (2001) A summary of the findings from the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Optometry Journal of the Americal Optometric Association 72:574-587

Raasch TW, Schechtman KB, Davis LJ, Zadnik K, the CLEK Study Group. (2001) Repeatability of subjective refraction in myopic and keratoconic subjects: results of vector analysis. Ophthalmic and Physiological Optics 21:376-383

Edrington TB, the CLEK Study Group. (2002) What the CLEK Study means to you. Review of Optpmetry 139:61-64

Shen JF, McMahon TT, Chen EL, Sugar J, Yue BYJT, Anderson RJ, Bigley C, Zhou J, for the CLEK Study Group. (2002) Lysosomal hydrolase staining of conjunctival impression cytology specimens in keratoconus. Corneal 21:447-452

Zadnik K, Steger-May K, Fink BA, Joslin CE, Nichols JJ, Rosenstiel CE, Tyler JA, YuJA, Raassch TW, Schechtman KB, the CLEK Study Group. (2002) Between-eye asymmetry in keratoconus. Cornea 21:671-679

Zadnik K, Barr JT, Gordon MO. (1989) Multi-center survey results:trends in keratoconus. American Journal of Optometry and Physiological Optics (Suppl) 66:56P

Zadnik K, Barr JT, Gordon MO, and the CLEK Study Group. (1990) Contact lens fitting trends in keratoconus: Results from the CLEK (Contact Lens Evaluation in Keratoconus) screening study. Optometry and Vision Science 67:46P

Edrington TB, Zadnik K, Barr JT, Gordon MO, and the CLEK Study Group. (1991) Scarring and contact lens fit in keratoconus: results from the CLEK (Contact Lens Evaluation in Keratoconus) Screening Study. Investigative Ophthalmology and Visual Science (Suppl) 32:738

Barr JT, Gordon MO, Zadnik K, Edrington TB, and the CLEK Study Group. (1991) Method for standardizing photographic evaluation of corneal scarring. Investigative Ophthalmology and Visual science (Suppl) 32:1221

Zadnik K, Gordon MO, Barr JT, Edrington TB, and the CLEK Study Group. (1991) Profile of keratoconus patients undergoing penetrating keratoplasty. Optometry and Vision Science (Suppl) 68:33

Barr JT, Gordon MO, Zadnik K, Edrington TB, and the CLEK Study Group. (1991) Corneal photography and grading of corneal scarring photographs-a standardized procedure. Optometry and Vision Science (Suppl) 68:34

Edrington TB, Barr JT, Zadnik K, Gordon MO, and the CLEK Study Group. (1991) A standardized rigid contact lens fitting protocol for keratoconus. Optometry and Vision Science (Suppl) 68:105

Gordon M, Zadnik K, Morgan D, Barr J, Edrington T, and the Contact Lens Evaluation in Keratoconus study Group. (1991) Improving estimated os sample yield in clinical rials. Proceedings of the Biopharmaceutical Section of the American Statistical Association 118-123

Gordon MO, Zadnik K, Barr JT, Edrington TB, and the CLEK Study Group. (1991) A low cost screening survey to assess sample yield and refine study entry criteria. Proceedings of the Soc Clin Trials

Barr JT, Gordon MO, Zadnik K, Edrington TB, and the CLEK Study Group. (1992) A standardized procedure for corneal photography and grading of corneal scarring in keratoconus. Investigative Ophthalmology and Visual Science (Suppl) 33:771

Burger DS, Gordon MO, Zadnik K, Barr JT, Edrington TB, and the CLEK Study Group. (1992) A low cost screening survey to asses sample yield and refine study entry criteria. Investigative Ophthalmology and Visual Science (Suppl) 33:869

Edrington TB, Gordon MO, Barr JT, Zadnik K, and the CLEK Study Group. (1992) A standardized method to photodocument and interpret contact lens fluorescein patterns applied to keratoconus. Investigative Ophthalmology and Visual science (Suppl) 33:1295

Barr JT, Zadnik K, Edrington TB, Gordon MO, and the CLEK Study Group. (1992) Corneal photodocumentation and photograph reading method for the Contact Lens Evaluation in Keratoconus (CLEK)-150 Eye Study. Optometry and Vision Science (Suppl) 69:70

Zadnik K, Barr JT, Edrington TB, Gordon MO, and the CLEK Study Group. (1992) Feasibility of randomizing keratoconus patients to flat versus steep contact lenses. Optometry and Vision Science (Suppl) 69:137 (errata)

Edrington TB, Barr JT, Zadnik K, Gordon MO, and the CLEK Study Group. (1992) You can fit steep and we can prove it: a standardized keratoconus fitting and documentation method. Optometry and Vision Science (Suppl) 69:153

Barr JT, Gordon MO, Zadnik K, Edrington TB, and the CLEK Study Group. (1993) Corneal findings in the Contact Lens Evaluation in Keratoconus Screening Study. Investigative Ophthalmology and Visual Science (Suppl) 34:980

Edrington TB, Gordon MO, Zadnik K, Barr JT, and the CLEK Study Group. (1993) Achieving and maintaining a comfortable apical clearance RGP contact lens fit in keratoconus. Investigative Ophthalmology and Visual Science (Suppl) 34:1005

Barr JT, Van Otteren D, Edrington TB, Zadnik K, Gordon MO, the CLEK Study Group. (1993) Prescriber and reader agreement using a standard method to photodocument contact lens fluorescein patterns in keratoconus. Optometry and Vision Science (Suppl) 70:21-22

Zadnik K, Barr JT, Edrington TB, Gordon MO, the CLEK Study Group. (1993) Scarring and visual acuity in keratoconus. Optometry and Vision Science (Suppl) 70:22

Edrington TB, Barr JT, Zadnik K, Gordon MO, the CLEK study Group (1993) Selection of initial trial fitting RGP contact lens base curve radius in keratoconus. Optometry and Vision Science (Suppl) 70:39

Edrington TB, Zadnik K, Gordon MO, Barr JT, the CLEK Study Group. (1994) Fellow eyes of corneal grafts are at risk for keratoconus disease progression. Investigative Ophthalmology and Visual science (Suppl) 35:1359

Barr JT, Gordon MO, Zadnik K, Edrington TB, the CLEK Study Group. (1994) Thirty keratoconus patients randomized to two contact lens treatment methods. Investigative Ophthalmology and Visual science (Suppl) 35:2164

Barr JT, Zadnik K, Gordon MO, Edrington TB,the CLEK Study Group. (1994) The Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: Historical data and study design. Optometry and Vision science (Suppl) 71:33

Barr JT, Gordon MO, Zadnik K, Edrington TB, (1995) Quality of life in keratoconus patients. Investigative Ophthalmology and Visual Science (Suppl) 36:S75

Zadnik K. Barr JT, Gordon MO, Edrington TB, CLEK Study Group. (1995) Standardization of clinical techniques. Optometry and Vision Science (Suppl) 72:15

Zadnik K, Bullimore MA, Barr JT, Gordon MO, Edrington TB, CLEK Study Group. (1996) Recruitment for a large-scale clinical study via the World Wide Web and the Internet. Investigative Ophthalmology & Visual Science (Suppl) 37:S305

Edrington TB, Barr JT, Zadnik K, Gordon MO, the CLEK Study Group. (1996) A new measure of disease severity in keratoconus. Investigative Ophthalmology & Visual Science (Suppl) 37:S557

Zadnik K, Bullimore MA, Barr JT, Gordon MO, Edrington TB, CLEK Study Group. (1996)

Recruitment for a large-scale clinical study via the World Wide Web and the Internet. Controlled Clinical Trials (Suppl) 17:76S

Gordon MO, Everett DF, Zadnik K, Barr JT, Edrington TB, CLEK Study Group. (1996) Procedures for handling criticism and comments from study investigators. Controlled Clinical Trials (Suppl) 17:76S

Zadnik K, Davis LJ, McMahon TT, Schornack JA, Gordon MO, the CLEK Study Group. (1996) Repeatability of visual acuity measurement in keratoconus. Optometry and Vision Science (Suppl) 73:68

Edrington TB, Zadnik K, Barr JT, Gordon MO, the CLEK Study Group. (1996) Rigid contact lens fitting relationships in keratoconus: standard of care. Optometry and Vision Science (Suppl) 73:230

Barr JT, Zadnik K. Edrington TB, Gordon MO, CLEK Study Group. (1996) Agreement between clinicians and the photograph readers in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Optometry and Vision Science (Suppl) 73:230

Zadnik K, Barr J, Edrington T, Gordon M, CLEK Study Group. (1997) Late visit reports to ensure patient retention. Controlled clinical Trials. 18:102S

Barr JT, Edrington TB, Zadnik K, Gordon MO, the CLEK Study Group. (1986) Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study: baseline demographics and clinical characteristics. Investigative Ophthalmology & Visual Science (Suppl) 39:S67

Davis LJ, Barr JT, Pierce GE, Gordon MO, the CLEK Study Group. (1998) Test-retest reliability of grading the presence of Vogt’s striae and Fleischer’s ring by photography. Investigative Ophthalmology & Visual Science (Suppl) 39:S67

Raasch TW, McMahon TT, Szczotka LB, Friedman NE, Anderson RJ, Davis LJ, the CLEK Study Group. (1998) Fundamental component differences in topography between keratonconic and normal corneas. Investigative Ophthalmology & Visual Science (Suppl) 39:S635

Edrington TB, Szczotka LB, Burger DS, Chun MW, Janoff AM, Olafsson HE, Wilson BS, Gordon MO, the CLEK Study Group. (1998) Collaborative Longitudinal evaluation of Keratoconus (CLEK) Study: Rigid contact lens fitting relationship. Investigative Ophthalmology & Visual Science (Suppl) 39:S343

Walline JJ, Gordon MO, Edrington TB, Barr JT, Zadnik K, the CLEK Study Group. (1998) Quality of life in keratoconus. Investigative Ophthalmology & Visual Science (Suppl) 39:S668

Zadnik K. Barr JT, Edrington TB, Wilson BS, Nichols JJ, Gordon MO, the CLEK Study Group. (1998) Impact of scarring in keratoconus. Optometry and Vision Science (Suppl) 75:20

Barr JT, Zadnik K, Gordon MO, Edrington TB, McMahon TT, the CLEK Study Group. (1998) Correlates of corneal scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Optometry and Vision Science (Suppl) 75:20

Edrington TB, Barr JT, Schechtman KB, Fink BA, Pierce GE, Pensly CD, Zadnik K, Gordon MO, the CLEK Study Group. (1998) Collaborative Longitudinal evaluation of Keratoconus (CLEK) Study: Corneal scarring at baseline and repeatability of detection. Optometry and Vision Science (Suppl) 75:21

Walline JJ, Edrington TB, Barr JT, Zadnik K, Gordon MO, the CLEK Study Group. (1998) Health related quality of life in keratoconus. Optometry and Vision Science (Suppl) 75:21

McMahon TT, Anderson RJ, Szczotka LB, Davis LJ, Friedman NE, Rassach TW. (1998) Readability of EyeSys topography data in keratoconus. Optometry and Vision Science (Suppl) 75:22

Raasch TW, Anderson RJ, McMahon TT, Friedman NE, Szczotka LB, Davis LJ, the CLEK Study Group. (1998) Repeatability of topography measurement in keratoconus. Optometry and Vision Science (Suppl) 75:22

McMahon TT, Anderson RJ, Szczotka LB, Davis LJ, Friedman NE, Raasch TW, and the CLEK Study Group: (1998) Readability of EyeSys topography in keratoconus. Optometry and Vision Science (Suppl) 75:22

Merchea MM, Zadnik K, Barr JT, Edrington TB, McMahon TT, Gordon MO, the CLEK Study Group. (1998) The Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Piggyback Feasibility Piolt Study. Optometry and Vision Science (Suppl) 75:157

Barr JT, Gordon MO, Zadnik K, Edrington TB, McMahon TT, Everett DF, and the CLEK Study Group. Incident corneal scaring estimates in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. (1999) Investigative Ophthalmology & Visual Science 40 (Suppl):S769

Gordon MO, Beiser JA, Zadnik K, Barr JT, Edrington TB, McMahon TT, and the CLEK Study Group. (1999) Correlation of NEI-Visual Function Questionnaire (VFQ) with clinical measures in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Investigative Ophthalmology & Visual Science 40 (Suppl): S769

Edrington TB, Barr JT, Zadnik K, Fink BA, Nichols JJ, Gordon MO, and the CLEK Study Group. (1999)Correlation of corneal scarring with clinical measures and patient outcomes at baseline in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Investigative Ophthalmology & Visual science 40 (Suppl) S911.

Barr JT, Zadnik K, Gordon MO, Edrington TB, McMahon TT, Everett DF, the CLEK Study Group. (1999) Estimating incident corneal scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Optometry and Vision Science (Suppl) 76:213

Edrington TB, Gundel RE, Libassi DP, Wagner H, Pierce GE, Walline JJ, Barr JT, Wilson BS, Gordon MO, the CLEK Study Group. (1999) The effect of rigid contact lens peripheral clearance on patient comfort in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Optometry and Vision Science (Suppl) 76:210

Zadnik K, Schechtman KB, Nichols JJ, Fink BA, Tyler J, Rosenstiel CE, Steger-May K, the CLEK Study Group. Asymmetry in keratoconus. Investigative Ophthalmology & Visual Science 41 (Suppl) S678

Pierce GE, Fink BA, Barr JT, Edrington TB, Schechtman KB, Jeandervin M, Flom R, Zadnik K, the CLEK Study Group. (2000) A comparison of two methods of evaluating cornea-to-contact lens base curve fluorescein patterns in keratoconus. Investigative Ophthalmology & Visual Science 41 (Suppl) S72

Shen JF, McMahon TT, Cheng EL, Sugar J, Yue BYJT, Anderson R, BegleyC, Zhou Z, the CLEK Study Group. (2000) Lysosomal hydrolase staining of impression cytology specimens in keratoconus. Investigative Ophthalmology & Visual Science 41 (Suppl) S271

Zadnik K, Schechtman KB, Nichols JJ, Fink BA, Tyler J, Rosenstiel, Shin JA, Joslin CE, Steger-May K, the CLEK Study Group. (2000) Disease asymmetry in keratoconus. Optom Vis Sci (Suppl) 77:117

Pierce GE, Barr JT, Edrington TB, Gordon MO, Jeandervin M, Flom RE, Fink BA, Zadnik, the CLEK Study Group. (2000) A Technique to improve the agreement between two methods of evaluating cornea-to-contact lens base curve fluorescein patterns in the CLEK Study. Optom Vis Sci (Suppl) 77:225

Barr JT, Gordon MO, Wilson BS, Zadnik K, Edrington TB, McMahon TT, Everett DF, the CLEK Study Group. Factors associated with incident corneal scarring in the Collaborative Longitudinal evaluation of Keratoconus (CLEK) Study. (2001) Invest Ophthalmolol Vis Sci 42:S83

Zadnik K, Barr JT, Edrington TB, McMahon TT, Gordon MO. (2002) Flat vs steep: the effect of rigid contact lens fitting method in keratoconus. ARVO abstract #3225, http://www.arvo.org, assessed 5/15/02

McMahon TT, Anderson RJ, Szczotka LB, Roberts C, Mahmoud A, Friedman NE, Davis LJ, Raasch TW, the CLEK Study Group. (2002) The relation between visual accuity and topographic indices in keratoconus. ARVO abstract #142 http://www.arvo.org, accessed 5/15/02

Barr JT, Zadnik K, Edrington T, McMahon T. (2002) Visual acuity and quality of life after penetrating keratoplasky. Optom Vis Sci 79 (Suppl):5

Zadnik K. Schechtman KB, Wilson BA, Barr JT, Edrington TB, McMahon TT, Everett DF, Gordon MO, CLEK Study Group. (2003) Visual acuity loss in keratoconus. ARVO abstract #138 http://www.arvo.org, accessed 5/9/03

Nichols JJ, Steger-May KJ, Edrington TB, Zadnik K, CLEK Study Group. (2003) The relation between disease asymmetry and severity in keratoconus. ARVO abstract #1313, http://www.arvo.org

• National Jesuit Honor society
• Alpha Epsilon Delta
• Hobart A. Hare Medical Honor Society
• Carroll R. Muller Memorial Award for the Department of Ophthalmology, Jefferson Medical College

• American Academy of Ophthalmology
• American Medical Association
• The Castroviejo Society of Corneal Specialists
• The American Society of Cataract and Refractive Surgery
• The Association for Research in Vision and Ophthalmology
• The International Society of Refractive Keratoplasty
• Pennsylvania Medical Society
• The Lackawanna County Medical Society
• The Society of Ophthalmology of Northeastern Pennsylvania

Date of Birth: April 26, 1957

Place of Birth: Scranton, Pennsylvania