GTSCOPE - To Evaluate the Natural Progression of Dry Age-related Macular Degeneration (AMD)

Inclusion Criteria:

1. Adults with unilateral or bilateral Geographic Atrophy (GA) due to Age-related Macular Degeneration (AMD)
2. BCVA of 40 letters or better using ETDRS charts

Exclusion Criteria:

1. Evidence or history of neovascular Age-related Macular Degeneration (AMD) or diabetic retinopathy
2. Significant ocular or non-ocular disease that would impact the subject's ability to participate in the study
3. Participation in another research study involving an investigational product within the previous 4 weeks or 5 half-lives whichever is longer from the screening/baseline OR received a gene/cell therapy at any time previously