Khảo sát tình trạng đục bao sau thứ phát và các yếu tố đặc điểm thể thủy tinh nhân tạo liên quan tới đục bao sau thứ phát

Abstract

Objective: To investigate the characteristics of secondary posterior capsular opacity (PCO) and intraocular lens (IOL) characteristics related to posterior capsular opacity. Subject and method: A cross sectional descriptive study was performed on 206 eyes which had been done phacoemulsification by one phaco surgeon at the Glaucoma Department - Vietnam National Institute of Ophthalmology from 01/01/2012 to 31/12/2012. Patient’s list was collected from hospital management software, characteristics of IOL collected from patient records. The vision acuity, posterior capsule were recorded. Result: 32.5% of 206 eyes in the study group had secondary posterior capsular opacity with 53.7% fibrosis type, 22.4% mixed and 23.9% Elschnig type. The more convex posterior surface had 11.1% PCO was significantly lower than that of the equivalent convex IOL 35.8% (p<0.05). The rate of PCO of IOL acrylic hydrophobic material was 28.9% lower than that of using IOL acrylic hydrophilic 36.8%. Conclusion: Secondary posterior capsular opacity occurred at a high rate after surgery, most of which was fibrous. IOL had more convex posterior surface and had material as acrylic hydrophobic can reduce PCO.