Inclusion criteria | |
• Minimum 2-year diagnosis of primary open-angle glaucoma, primary angle-closure glaucoma or pseudoexfoliation glaucoma | |
• Disc Damage Likelihood Scale stages 5 through 8 in at least one eye with characteristic visual field loss | |
• Age between 21 and 85 years | |
• Able to understand and speak English | |
Exclusion criteria | |
• Unlikely to be available for annual ocular examination and reassessment across a 4-year period | |
• Neurological or musculoskeletal diseases, including dementia that would influence performance on activities of daily living | |
• Incisional eye surgery within the past 3 months | |
• Laser therapy within the previous month | |
• Any cause for visual impairment other than glaucoma | |
• Any medical condition which in the investigator’s opinion would preclude the patient from providing reliable and valid data (e.g., cognitive impairment) |