Paradoxical response to photorefractive treatment for postkeratoplasty astigmatism.
作者信息
Fraenkel G, Sutton G, Rogers C, Lawless M
机构信息
Sydney Refractive Surgery Center, Chatswood, Australia.
出版信息
J Cataract Refract Surg. 1998 Jun;24(6):861-5. doi: 10.1016/s0886-3350(98)80144-2.
PMID:9642601
Abstract
A 42-year-old woman with functionally disabling postkeratoplasty astigmatism in her right eye 3 years after corneal transplantation for keratoconus received photorefractive keratectomy for high astigmatism in that eye. This did not reduce her astigmatism. The procedure was repeated and corneal astigmatism paradoxically increased. The forces within the pseudo-optical ring that cause and maintain astigmatism in corneal transplants may be a significant factor in the unpredictable response of some corneal transplants to excimer photorefractive astigmatism correction.
摘要
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