Clinical results of PRK touch-up using Chiron/Technolas Keracor 116 excimer laser

Mary E. Davidian M.D.; Richard H. Keates M.D.; Qiushi Ren

doi:10.1117/12.209870

22 May 1995 Clinical results of PRK touch-up using Chiron/Technolas Keracor 116 excimer laser

Mary E. Davidian M.D., Richard H. Keates M.D., Qiushi Ren

Proceedings Volume 2393, Ophthalmic Technologies V; (1995) https://doi.org/10.1117/12.209870
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

Regression of effect as well as undercorrection are well established complications of excimer photorefractive keratectomy for the correction of myopia. In thirteen eyes initially treated with the VISX Taunton excimer laser and then retreated with the Chiron Technolas laser, the minimum follow-up time was six months. The mean postoperative refraction at six months was -0.442 +/- 0.996 D (diopters), significantly different from the pretreatment mean of -1.904 +/- 1.297 D. At six months after retreatment (10/13 eyes) 76.9% had an uncorrected visual acuity greater than or equal to 20/40 and (10/13 eyes) 76.9% were within 1 diopter of emmetropia. Only one eye had a significant increase in postoperative haze. The results of this study indicate that the majority of photorefractive keratectomy regressions and undercorrections can be successfully retreated.

Citation Download Citation

Mary E. Davidian M.D., Richard H. Keates M.D., and Qiushi Ren "Clinical results of PRK touch-up using Chiron/Technolas Keracor 116 excimer laser", Proc. SPIE 2393, Ophthalmic Technologies V, (22 May 1995); https://doi.org/10.1117/12.209870

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