Lead Sponsor: Jeremy Keenan, MD, MPH

Collaborators: National Eye Institute (NEI), University of Pennsylvania, University of California, Los Angeles, University of Miami, University of Iowa, Columbia University, Oregon Health and Science University, University of Pittsburgh, University of Florida, Johns Hopkins University, University of Illinois at Chicago, Aravind Eye Care System, Moorfields Eye Hospital NHS Foundation Trust, Federal University of São Paulo

Intervention / Treatment: DRUG: Topical corticosteroid, OTHER: Topical placebo, DRUG: Polyhexamethylene biguanide (PHMB)

Lead Sponsor: University of California, San Francisco

Collaborators: Seva Foundation

Intervention / Treatment: OTHER: Fundus Photography, OTHER: Visual acuity (presenting and pinhole), OTHER: Optical coherence tomography (OCT), OTHER: Intraocular pressure, OTHER: Active linkage to care

Lead Sponsor: University of California, San Francisco

Collaborators: Seva Foundation, Bharatpur Eye Hospital

Intervention / Treatment: OTHER: Community health worker program, OTHER: Community-based screening program, OTHER: Cataract camp program