Also known as "dry age-related macular degeneration (AMD)" or "atrophic macular degeneration".
Summary
Nonexudative age-related macular degeneration is a chronic eye condition that affects the macula, the part of the retina responsible for sharp central vision. It leads to a gradual vision impairment but usually progresses slower compared to its exudative counterpart.
Causes
The exact cause is unknown, but it involves the cell degeneration of the macula. Factors such as oxidative stress and impaired removal of cellular debris are suspected to contribute.
Risk Factors
Age (most common in individuals over 60)
Family history of AMD
Smoking
High blood pressure and cholesterol levels
Obesity
Prolonged exposure to sunlight
Poor diet low in leafy greens and antioxidants
Symptoms
Blurred or reduced central vision
Difficulty recognizing faces
Need for brighter light when reading or doing close work
Gradual increase in difficulty adapting to low light levels
Diagnosis
Comprehensive eye examination
Optical coherence tomography (OCT)
Fundus photography
Amsler grid test to check for vision distortion
Treatment Options
There is currently no cure, but progression can be slowed.