Topografia da crnea aps perfurao ocular

ABSTRACT Purpose: To analyze the corneal topography after grade Iocular perforating injuries. Methods: Twenty-one patients,attended and operated at the Department of Ophthalmology ofSanta Casa de Sao Paulo during the year 1998, were includedinto this controlled clinical transversal study. Computerizedcorneal topography was performed using the EyeTech CT-2000 Corneal Topographer. Fellow eyes formed the controlgroup. Results: Fifteen patients (71%) had wounds less than4 mm. The mean corneal topographic astigmatism was 2.66 ±2.64 D in the group of perforated eyes, and 0.52 ± 0.25 D in thecontrol group. Statistically significant differences were foundcomparing the distribution of the patients with topographiccorneal astigmatism higher or lower than 2.00 D in thecategories of medium corneal wound size (p=0.04) and woundconformation (p=0.02). Localization showed no statisticaldifference (p=1.00). No statistically significant difference(p=0.98) was found comparing the mean corneal power in thegroup of perforated eyes with the control group. The finaldistribution of the topographic corneal pattern showedsimilarity between the group of perforated eyes and thecontrol group, as well as that of the literature data. Best-corrected visual acuity better or equal to 0.5 was found in 81%of the patients.