Macular degeneration

Definition

Macular degeneration is a medical condition that results in the deterioration of the central portion of the retina, known as the macula. This leads to progressive vision loss, particularly affecting central vision.

5 Must Know Facts For Your Next Test

1. There are two types: dry (atrophic) and wet (neovascular or exudative) macular degeneration.
2. Dry macular degeneration is more common and progresses more slowly than wet macular degeneration.
3. Wet macular degeneration is characterized by abnormal blood vessels growing under the retina, leading to rapid vision loss.
4. Treatment options for wet macular degeneration include anti-VEGF injections, laser therapy, and photodynamic therapy.
5. No cure exists for macular degeneration, but lifestyle changes such as diet modifications and smoking cessation can slow its progression.

Review Questions

• What are the two types of macular degeneration?
• Which type of macular degeneration progresses more rapidly and involves abnormal blood vessel growth?
• What are some treatment options available for wet macular degeneration?

Related terms

Anti-VEGF Therapy: A treatment involving injections that inhibit vascular endothelial growth factor to reduce abnormal blood vessel growth.

Photodynamic Therapy: A treatment that uses a light-activated drug to destroy abnormal blood vessels in the eye.

Retina:

The light-sensitive layer at the back of the eye that sends visual signals to the brain.