Abstract
Abstract: :
Purpose: Determine prognostic factors in patients who have undergone vitreoretinal surgery(CVR) with temporary keratoprosthesis(QPT) and penetrating keratoplasty(QPP) Methods: Retrospective, longitudinal and observational study. We studied 55 medical files of patients who had undergone CVR surgical procedure with QPT and QPP from 1994 to 2002 at the Association to prevent blindness in Mexico. The study included complete medical files which excluded congenital pathology. The variables that were studied were demographic and systemic opthalmological background such as surgical eye procedures and ocular trauma, visual acuity(VA), intraocular pressure, corneal condition, retinal diagnosis and postoperative variables. We underwent a descriptive analysis, univariate - multivariate analysis and discriminant function analysis. it was classified as a success when VA was equal or more than finger count at one meter. Results:There were a total of 38 patients. 76.3% males averring from an age range of 31.36. There was history of surgical procedure in 60.5% and traumatic history in 70.7% The presurgical VA: PL in 55.3%, MM 28.9%. The Success in VA was 18.42%. The discriminant variables for deficient VA were: presence of corneal vascularity, presurgical VA, history of a traumatic event as well as a surgical procedure and retinal condition. There were no established diferences between VA at the begging or at the end (p=0.6) Conclusions: Factors that concerned better evolution were the absence of corneal vascularity, Retina Detachment, foreign intraocular bodies, history of traumatic and surgical events as well as eye surgery and presurgical visual acuity.
Keywords: keratoprostheses • visual acuity • vitreoretinal surgery