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Standardized rigid contact lens fitting protocol for keratoconus.
Edrington TB, Barr JT, Zadnik K, Davis LJ, Gundel RE, Libassi DP, McMahon TT, Gordon MO. Edrington TB, et al. Among authors: libassi dp. Optom Vis Sci. 1996 Jun;73(6):369-75. doi: 10.1097/00006324-199606000-00003. Optom Vis Sci. 1996. PMID: 8807647 Clinical Trial.
Longitudinal changes in visual acuity in keratoconus.
Davis LJ, Schechtman KB, Wilson BS, Rosenstiel CE, Riley CH, Libassi DP, Gundel RE, Rosenberg L, Gordon MO, Zadnik K; Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group. Davis LJ, et al. Among authors: libassi dp. Invest Ophthalmol Vis Sci. 2006 Feb;47(2):489-500. doi: 10.1167/iovs.05-0381. Invest Ophthalmol Vis Sci. 2006. PMID: 16431941