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Comparative Study
Journal Article
Comparison of excimer laser treatment of astigmatism and myopia. The Excimer Laser and Research Group.
Archives of Ophthalmology 1993 December
OBJECTIVE: To assess the safety and efficacy of excimer laser treatment of myopic astigmatism and to compare this with the excimer laser treatment of myopia.
DESIGN: A prospective, open study of consecutive patients having excimer laser treatment of myopic astigmatism or myopia.
SETTINGS: Patients were recruited from 18 private ophthalmic practices.
PATIENTS: Fifty-four eyes received treatment for astigmatism and 66 eyes for myopia. One patient was lost to follow-up, and another underwent an ineffective ablation.
INTERVENTIONS: A VISX Twenty/Twenty excimer laser was used to perform either photoastigmatic refractive keratectomy or photorefractive keratectomy.
MAIN OUTCOME MEASURES: Refraction and visual acuity with and without correction were assessed preoperatively and postoperatively.
RESULTS: At 6 months, 17 (85%) of the 20 patients receiving photoastigmatic refractive keratectomy were within 1 diopter of plano refraction, and 19 (95%) of 20 had uncorrected visual acuity of 6/12 (20/40) or better. For patients receiving photorefractive keratectomy, these figures were 28 (88%) of 32 patients and 28 (88%) of 32 patients, respectively.
CONCLUSIONS: Excimer laser surgery offers an effective option in the treatment of myopic astigmatism.
DESIGN: A prospective, open study of consecutive patients having excimer laser treatment of myopic astigmatism or myopia.
SETTINGS: Patients were recruited from 18 private ophthalmic practices.
PATIENTS: Fifty-four eyes received treatment for astigmatism and 66 eyes for myopia. One patient was lost to follow-up, and another underwent an ineffective ablation.
INTERVENTIONS: A VISX Twenty/Twenty excimer laser was used to perform either photoastigmatic refractive keratectomy or photorefractive keratectomy.
MAIN OUTCOME MEASURES: Refraction and visual acuity with and without correction were assessed preoperatively and postoperatively.
RESULTS: At 6 months, 17 (85%) of the 20 patients receiving photoastigmatic refractive keratectomy were within 1 diopter of plano refraction, and 19 (95%) of 20 had uncorrected visual acuity of 6/12 (20/40) or better. For patients receiving photorefractive keratectomy, these figures were 28 (88%) of 32 patients and 28 (88%) of 32 patients, respectively.
CONCLUSIONS: Excimer laser surgery offers an effective option in the treatment of myopic astigmatism.
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