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Researchers are investigating the best way to use Selective Laser Trabeculoplasty (SLT) therapy for people with glaucoma or ocular hypertension. The study aims to find out if performing SLT at a low energy level is as effective as using the standard energy level. It also evaluates whether repeating low energy SLT once a year can better prevent or delay the need for daily eye drop medications compared to waiting until the effects of the initial SLT wear off before repeating the treatment. Participants will receive SLT treatments at either low energy or standard energy levels. The study compares these two approaches to see which is more effective over time. Some participants will have their low energy SLT repeated annually to assess if this schedule helps in managing their eye condition better than waiting for the treatment effects to diminish before repeating SLT. During the study, participants will be monitored for up to 48 months to track their survival without requiring daily eye drops, with primary outcome measures at 12 and 48 months. Researchers will check eye pressure and overall eye health regularly, ensuring safety and effectiveness of the treatments. Participants need to attend scheduled visits and follow study procedures throughout the study duration, which may include periodic eye exams and assessments.