Results one year after using the 193-nm excimer laser for photorefractive keratectomy in mild to moderate myopia

A. R. Talley, D. R. Hardten, N. A. Sher, M. S. Kim, Donald J Doughman, E. Carpel, C. S. Ostrov, S. S. Lane, P. Parker, R. L. Lindstrom

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

As part of a clinical trial, photorefractive keratectomy using the VISX 2015 193-nm excimer laser was performed on 91 healthy eyes of 91 patients. Preoperative refractive errors (spherical equivalent) ranged from -1.00 to - 7.50 diopters (mean, -4.16 ± 1.41 diopters). No patient had more than 1 diopter of refractive astigmatism. Six months postoperatively, the average residual refractive error was +0.09 ± 0.63 diopters (range, -2.13 to +1.63 diopters). Correction within 1 diopter of that attempted was attained in 85 eyes (93%). Uncorrected visual acuity of 20/40 or better was attained in 86 eyes (95%) and was 20/25 or better in 67 eyes (74%). At one year, follow-up information was available on 85 eyes of 85 patients. The average residual refractive error was -0.15 ± 0.65 diopters (range, -2.50 to +1.63 diopters). Correction within 1 diopter of that attempted was attained in 85 eyes (93%). Uncorrected visual acuity was 20/40 or better in 83 eyes (98%) and was 20/25 or better in 68 eyes (80%). One patient lost three lines of best-corrected visual acuity because of corneal haze, dropping from 20/15 to 20/30, whereas all other patients returned to best-corrected visual acuity within one line of their preoperative best-corrected visual acuity. Photorefractive keratectomy with the 193-nm excimer laser appears to be a useful treatment modality for the reduction of mild to moderate myopia.

Original languageEnglish (US)
Pages (from-to)304-311
Number of pages8
JournalAmerican journal of ophthalmology
Volume118
Issue number3
DOIs
StatePublished - 1994

Fingerprint Dive into the research topics of 'Results one year after using the 193-nm excimer laser for photorefractive keratectomy in mild to moderate myopia'. Together they form a unique fingerprint.

Cite this