Penurunan Tekanan Intraokular Pascabedah Katarak pada Kelompok Sudut Bilik Mata Depan Tertutup dan Terbuka

Abstract

Increased crystalline lens thickness in senile cataract causing resistance to aqueous humor outflow. Increased anterior chamber depth had a positive correlation with the widening of the anterior chamber angle and decreased of intraocular pressure (IOP) after cataract extraction. The purpose of this study was to compare IOP reduction after cataract surgery between angle-closure and open-angle group. This pre-post test design study was to compare IOP after phacoemulsification cataract surgery in 26 eyes of 26 patients divided into angle-closure and open-angle groups consisting of 13 eyes each. The study was conducted in Cicendo Eye Hospital Bandung in period of March until June 2012. Patients who planned to have phacoemulsification cataract surgery were recruited consecutively. The anterior chamber angle was measured before surgery using Sussman 4-mirror goniolens. The intraocular pressure were measured before and three weeks after surgery using Goldmann aplanation tonometer. Statistical analysis was done using t test. The results indicated that IOP reduction was statistically significant greater in the angle-closure group (19.6%) compared with open-angle group (11.3%) with p=0.022. In conclusion, IOP reduction after phacoemulsification cataract surgery was greater in the angle-closure group compared with open-angle group.

Keywords

• Anterior chamber angle
• gonioscopy
• intraocular pressure
• phacoemulsification surgery
• senile cataract