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