Types
- Gradual loss of ability to see objects clearly
- Shape of objects appears distorted (Metamorphosia)
- Straight lines look wavy or crooked
- Loss of clear colour vision
- A dark or empty area in the centre of vision usually affects both eyes in adults over age 50 might be a case of macular degeneration
Non-exudative or atrophic ARMD
- It is also called dry or geographic ARMD and is responsible for 90% cases
Symptoms
- Mild to a moderate, gradual loss of vision
- Visual impairment is slow and progressive (usually over decades) with unilateral or bilateral onset
Signs
- Early-stage- The occurrence of macular drusens , Focal hyper pigmentation and pale area of Retinal pigment atrophy (RPE atrophy)
- Intermediate stage - Sharply circumscribed circular areas of RPE atrophy with variable loss of choriocapillaries along with drusens
- Advanced stage - Enlargement of atrophic Areas
Exudative ARMD
- It is also called wet or neovascular ARMD, acute or insidious onset(over weeks to months) and usually manifests in one eye first
- Drusens with retinal pigment epithelial detachment
- Choroidal neovascularization
- The haemorrhagic detachment of the neurosensory retina