Evaluation of refractive status and ocular biometric parameters in primary angle closure disease.

Introduction: To evaluate the refractive status and ocular biometric parameters in subjects with angle-closure in Malaysia. Methods: This cross-sectional study was conducted on 171 primary angle closure patients (268 eyes). Visual acuity, refraction and ocular biometry (central anterior chamber depth (ACD), axial length (AXL), and lens thickness) were recorded. Vitreous cavity length and relative lens position (RLP) were calculated. Results: A total of 92 Primary Angle Closure Suspect (PACS), 30 Primary Angle Closure (PAC), and 146 Primary Angle Closure Glaucoma (PACG) eyes were included. Chinese ethnicity formed the majority (n=197, 73.5%), followed by Malay (n=57, 21.3%) and Indian (n=14, 5.2%). There was a significant female preponderance with female to male ratio of 1.85. Mean age was 65.7 ±7.7 years. Mean spherical equivalent was +0.33 ±1.29D. Approximately half (n=137, 51%) of the eyes were hyperopic (spherical power ≥ +0.5), with PACG having the highest percentage of hyperopia (n=69, 50.4%). Myopia and emmetropia were present in 48 (17.9%) and 83 (31%) eyes, respectively. Altho ugh AXL and vitreous length in myopia patients were significantly longer than emmetropic and hyperopic eyes (P
Source: Ophthalmic Research - Category: Opthalmology Source Type: research