Directory
Full Time Faculty
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Timothy McMahon, OD, FAAO |
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Phone |
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312-996-5410 |
Fax |
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312-996-4908 |
Office |
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EEI Room 3.154 |
US Mail |
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University of Illinois at Chicago |
Research Interests
Corneal topography, contact lenses, corneal disease, optics and external disease.
Education
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BS Optometry 1978 Illinois College of Optometry
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OD Optometry 1980 Illinois College of Optometry
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Residency 1980-1981 Kansas City Veterans Administration Medical Center
Appointments
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2001-present Professor of Ophthalmology
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1996-2001 Associate Professor of Optometry in Ophthalmology
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1996-present Adjunct Associate Professor of Optometry Illinois College of Optometry
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1991-present Consultant Attending Staff Eye Clinic West side Veterans Affairs Hospital, Chicago, IL
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1981-present Senior Staff Optometrist, University of Illinois Hospital Eye and Ear Infirmary, Chicago IL
Corneal Topography Reading Center
Contact Lens Service
This clinic offers services in eye examinations and contact lens fittings. Additionally, the contact lens service specializes in fitting diseased eyes.
Click here to learn more about the Contact Lens Service
Recent Publications
Tang K, Shah A, McMahon TT, Weissman BA: GP contact lenses can protect against ocular trauma: Two cases. Eye Contact Lens. 31(5):244-245, 2005.
McMahon TT, Anderson RJ, Roberts C, Mahmoud AM, Szczotka-Flynn LB, Raasch TW, Friedman NE, Davis LJ, the CLEK Study Group: Repeatability of Corneal Topography Measurement in Keratoconus with the TMS-1. Optom Vis Sci 82:405-415, 2005.
Fink B, Wagner H, Gordon M, Rosensteil C, Roediger T, McMahon T, Steger-May K, the CLEK Study Group: Gender differences in keratoconus. Amer J Ophthalmol 140:459-468, 2005.
Zadnik K, Barr J T, Steger-May K, Edrington T B, McMahon TT, Gordon M O, The CLEK Study Group: Comparison of flat and steep rigid contact lens fitting methods in keratoconus. Optom Vis Sci 82:1014-1021, 2005.
McMahon TT, Edrington TB, Szczotka-Flynn L, Olafsson HE, Davis LJ, Schechtman KB, the CLEK Study Group: Longitudinal changes in corneal curvature in keratoconus. Cornea 25:296-305, 2006.
Mahmoud AM, Roberts C, Lembach R, Herderick EE, McMahon TT, the CLEK Study Group: Simulation of machine-specific topographic indices for use across platforms. Optom Vis Sci 83:682-693. 2006.
McMahon TT, Szczotka-Flynn L, Barr JT, Anderson RJ, Slaughter ME, Lass JH, Iyengar SK, and the CLEK Study Group: A new method for grading the severity of keratoconus: The keratoconus severity score (KSS). Cornea 25:794-800, 2006.
Joslin CE, Tu EY, McMahon TT, Passaro PJ, Stayner LT, and Sugar J: Epidemiological characteristics of a Chicago-area acanthamoeba keratitis outbreak. Amer J Ophthalmol 142:212-217, 2006.
El Mallah M, McMahon TT, Edward D: Filamentous fungal invasion of a methafilcon matrix contact lens. Cornea 25:860-862, 2006.
Barr JT, Wilson BS, Gordon MO, et al. Estimation of the incidence and factors predictive of corneal scarring in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study. Cornea 25:16-25, 2006.
Gordon MO, Steger-May K, Szczotka-Flynn L, Riley C, Joslin CE, Weismann BA, Fink BA, Edrington TB, Olafsson HE, Zadnik K, The CLEK Study Group. Baseline predictors of incident penetrating keratoplasty in keratoconus. Am J Ophthalmol 142;6:923-930, 2006.
Joslin CE, Tu EY, Shoff ME, Booton GC, Fuerst PA, McMahon TT, Anderson RJ, Dworkin MS, Sugar J, Davis FG, Stayner LT. The association of contact lens solution use and acanthamoeba keratitis risk. Amer J Ophthalmol 144:169-180, 2007.
Szczotka-Flynn L, Slaughter M, McMahon, T, Barr J, Edrington T, Fink B, Lass J, Belin M, Iyengar S, CLEK Study Group. Disease severity and family history in keratoconus. Br J Ophthalmol. 92;8:1108-1111, 2008.
Mahmoud AM, Roberts CJ, Lembach RG, Twa MD, Herderick EE, McMahon TT. CLMI: the cone location and magnitude index. Cornea 27;4:480-487, 2008.
McMahon TT, Kim LS, Fishman GA, Stone EM, Zhao XC, Yee RW, Malicki J: CRB1 gene mutations are associated with keratoconus in patients with Leber congenital amaurosis. Invest Ophthalmol Vis Sci. 50;7:3185-3187, 2009.
Beyer J, Zhao X, Yee R, Khaliq S, McMahon T, Ying H, Yue BYJT, Malicki J: The role of crumbs genes in the vertebrate cornea. Invest Ophthalmol Vis Sci 51(9): 4549-4556, 2010.
Vajaranant TS, Blair MP, McMahon TT, Wilensky JT, de la Cruz J: Special considerations for pars plana tube-shunt placement in Boston type 1 keratoprosthesis. Arch Ophthalmol 128;11: 1480-1482, 2010.
Lam DY, Kinoshita BT, Jansen ME, Mitchell L, Chalmers RL, McMahon TT, Richdale KL; Sorbara L, Wagner H, CLAY Study Group. Contact Lens Assessment in Youth (CLAY): Methods and baseline findings. Optom Vis Sci 88;6: 708-715, 2011.
Chalmers R, Wagner H, Mitchell L, Lam D, Kinoshita B, Jansen M, McMahon T, Richdale K, Sorbara L: Age and other risk factors for corneal infiltrative and inflammatory events in young soft contact lens wearers from the contact lens assessment in youth (CLAY) study. Invest Ophthalmol Vis Sci (e-Pub April 28, 2011).
Wagner H, Chalmers RL, Mitchell LG, Jansen ME, Kinoshita BT, Lam DY, McMahon TT, Richdale K, Sorbara L, CLAY Study Group. Risk factors for interruption to soft contact lens wear in children and young adults. Optom Vis Sci 88:8; 973-980, 2011.
Jansen ME, Chalmers RL, Mitchell GL, Kinoshita BT, Lam DY, McMahon TT, Richdale K, Sorbara L, Wagner H. (2011) Characterization of patients who report compliant and non-compliant overnight wear of soft contact lenses. Cont Lens Anterior Eye http://dx.doi.org/10.1016/j.clae.2011.01.001