Direct Selective Laser Trabeculoplasty in Ethnic Chinese Population

This study is evaluating the effectiveness of selective laser trabeculoplasty (SLT) — a laser procedure that helps fluid drain from the eye to lower pressure — as a first-line treatment in Chinese patients with glaucoma or elevated eye pressure. **You may be eligible if...** - You are of Chinese ethnicity with corrected vision better than 6/18 in both eyes - You have been diagnosed with mild to moderate open-angle glaucoma, ocular hypertension, or normal tension glaucoma - You are willing to attend follow-ups over 12 months and follow study procedures **You may NOT be eligible if...** - You have had prior surgery on the study eye - You are pregnant or may become pregnant during the study - You work in a vision-critical profession (e.g., pilot or commercial driver) - You are unable to perform a reliable visual field test - You have certain eye conditions or are taking certain medications as specified in the protocol Talk to your doctor to see if this trial is right for you.