PMID: 16643754Apr 29, 2006Paper

Visual field analysis after laser in situ keratomileusis

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
Yuan-sheng YuanYan-mei Li

Abstract

To evaluate the effects of laser in situ keratomileusis (LASIK) on the patients' visual field. 92 eyes of 46 patients with mild, moderate, and high degrees of myopia were undergone LASIK. Perimetry was performed before and 1 day, 1 month, 3 months, 6 months after LASIK surgery by Humphrey II-750 visual field analysis. The central 30 - 2 fast threshold program was used to examine the change in central 30 degree. Mean defect (MD) and pattern standard deviation (PSD) were record. All operations were performed by an experienced surgeon. Statistical analyses were performed by SPSS using the randomized complete block design ANOVA (two factors analysis of variance). Differences among variables were evaluated by q-test (Student-Newman-Kueuls method). 93.5% patients obtained estimated best correct visual acuity or better at six months after LASIK. No complications were found in the subjects. No difference was found in fundus examinations before and after surgery. Intraocular pressure was normal at all preoperative and postoperative examinations. MD was significant differences among preoperative and postoperative values (P < 0.05, for all comparisons) and was correlated with visual acuity post-LASIK significantly (P < 0.05). While PSD di...Continue Reading

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