[Photorefractive keratectomy for correction of myopic astigmatism].
Nine eyes underwent superficial ablation with excimer laser for treatment of compound myopic astigmatism. In eight of the eyes, corneal cylinder was naturally-occurring, and in one eye the astigmatism had developed following retinal detachment surgery. All patients have been followed for 9 months. The pre- and postoperative cylinder was -2.7 +/- 0.4 diopters and -1.3 +/- 0.4 diopters, respectively, while the pre- and postoperative spherical equivalent was -4.7 +/- 0.4 diopters and -1.3 +/- 0.4 diopters, respectively. Uncorrected acuity improved from a preoperative mean of 20/300 to a postoperative mean of 20/40. Patients with a residual refractive error often demonstrated reasonably good unaided acuity. Toric ablations with the excimer laser can be performed at the same time as ablations for myopia, and appear to represent a promising strategy for correction of compound myopic astigmatism; the relative safety and efficacy of this procedure, and of combined radial and astigmatic keratotomy remain to be determined.
Doheny-Augenklinik, Universität von Südkalifornien School of Medicine, Los Angeles, California.
P J
PJ
McDonnell
M
M
Campos
L
L
Hertzog
J J
JJ
Garbus
D001251:Astigmatism / Q000601:surgery*; D003315:Cornea / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D053685:Laser Therapy; D009216:Myopia / Q000601:surgery*; D010149:Postoperative Pain / Q000209:etiology; D011183:Postoperative Complications / Q000209:etiology; D012029:Refraction, Ocular; D014792:Visual Acuity / Q000502:physiology
Photorefraktive Keratektomie zur Korrektur von myopem Astigmatismus.