PURPOSE: To describe 7 patients who developed ectasia following laser in situ kerato-mileusis (LASIK). SETTING: Instituto de la Visión, Buenos Aires, Argentina. METHODS: In this retrospective study of 7 patients, visual acuity, refraction, pachymetry, and corneal topography were examined before and after the refractive procedure and the occurrence of ectasia. RESULTS: Two of the 7 patients required penetrating keratoplasty. Ectasia developed within a mean of 1.02 years +/- 0.31 (SD). The clinical evolution of ectasia and the potential physiopathogenic causes of ectasia are described. CONCLUSION: Ectasia should be considered a potential complication of LASIK that is closely related to corneal thickness, but another variable, the optical zone diameter, should also be considered.
PURPOSE: To describe 7 patients who developed ectasia following laser in situ kerato-mileusis (LASIK). SETTING: Instituto de la Visión, Buenos Aires, Argentina. METHODS: In this retrospective study of 7 patients, visual acuity, refraction, pachymetry, and corneal topography were examined before and after the refractive procedure and the occurrence of ectasia. RESULTS: Two of the 7 patients required penetrating keratoplasty. Ectasia developed within a mean of 1.02 years +/- 0.31 (SD). The clinical evolution of ectasia and the potential physiopathogenic causes of ectasia are described. CONCLUSION:Ectasia should be considered a potential complication of LASIK that is closely related to corneal thickness, but another variable, the optical zone diameter, should also be considered.
Authors: Beeran Meghpara; Hiroshi Nakamura; Marian Macsai; Joel Sugar; Ahmed Hidayat; Beatrice Y J T Yue; Deepak P Edward Journal: Arch Ophthalmol Date: 2008-12
Authors: Elmira Baghdasaryan; Xiwen Huang; Kenneth M Marion; Tudor C Tepelus; Homayoun Bagherinia; SriniVas R Sadda; Hugo Y Hsu Journal: Open Ophthalmol J Date: 2018-05-18