Eye diseases such as- Diabetic Retinopathy, Glaucoma, Cataract, and Age-related Macular Degeneration often progress silently until irreversible vision loss occurs. Early detection is critical, but:
Ophthalmologists are not accessible everywhere (especially in rural/remote areas).
Screening tools are often expensive and slow, requiring specialized equipment.
Patients usually get diagnosed too late, when treatment is harder or less effective.
Color vision deficiencies (like red-green color blindness) often go undetected, affecting education, driving, or certain careers — because people don’t have easy access to testing.