For this prospective, multi-centre, cross sectional observational study, patients who attend routine eye examination at the medical institutions and who have been diagnosed with primary open-angle glaucoma, primary angle-closure glaucoma, pseudoexfoliation glaucoma, pigment dispersion glaucoma or ocular hypertension will be studied. The medical institutions are selected across different regions of Malaysia to assess the nationwide prevalence of OSD in glaucoma patients. The routine assessments include Corneal Evaluation, Tear Break-Up Time (TBUT), Hyperemia and Schirmer's test whereby the data from these assessments will be collected and analyzed. The study will also includes Symptom Evaluation and Questionnaire feedback.
This is a prospective, multi-centre, cross sectional observational study to determine the prevalence of ocular surface disease (OSD) in glaucoma patients, nationwide. The study also analyses sub group of OSD prevalence, stratified according to the treatment types (i.e. preserved, preservative-free, and combination of preservative-free and preserved eyedrops), and illustrates the patient perspective on OSD.