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Alcohol removal of the epithelium for excimer laser ablation: outcomes analysis.
Journal of Cataract and Refractive Surgery 1997 October
PURPOSE: To determine whether removing the corneal epithelium by dilute alcohol is equal to other epithelial removal techniques.
SETTING: The Bochner Eye Institute, Toronto, Ontario, Canada.
METHODS: Epithelium was removed using 25% alcohol placed on a circular pledget; the alcohol remained on the cornea for 3 minutes. Irrigation was performed with cold balanced salt solution. The epithelium was then lifted with forceps and removed. Ninety-one eyes having photorefractive keratectomy for low myopia (less than 8.00 diopters) were treated; 41 eyes were followed between 4 and 10 months (mean 6 months). Complications such as haze and loss of best corrected visual acuity (BCVA) were recorded.
RESULTS: All alcohol-treated eyes achieved a BCVA of 20/40 or better, 65.9% had 20/20 and 92.7%, 20/25 or better. There were no complications or adverse effects.
CONCLUSIONS: Epithelial removal using 25% alcohol did not adversely affect the algorithms used with the VISX 20/20 excimer laser, indicating the technique is safe, predictable, and effective. There was no significant loss of BCVA, toxic effects, or stromal hydration.
SETTING: The Bochner Eye Institute, Toronto, Ontario, Canada.
METHODS: Epithelium was removed using 25% alcohol placed on a circular pledget; the alcohol remained on the cornea for 3 minutes. Irrigation was performed with cold balanced salt solution. The epithelium was then lifted with forceps and removed. Ninety-one eyes having photorefractive keratectomy for low myopia (less than 8.00 diopters) were treated; 41 eyes were followed between 4 and 10 months (mean 6 months). Complications such as haze and loss of best corrected visual acuity (BCVA) were recorded.
RESULTS: All alcohol-treated eyes achieved a BCVA of 20/40 or better, 65.9% had 20/20 and 92.7%, 20/25 or better. There were no complications or adverse effects.
CONCLUSIONS: Epithelial removal using 25% alcohol did not adversely affect the algorithms used with the VISX 20/20 excimer laser, indicating the technique is safe, predictable, and effective. There was no significant loss of BCVA, toxic effects, or stromal hydration.
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