Question 1

What is geographic atrophy?

Accepted Answer

Geographic atrophy (GA) is an advanced form of dry age-related macular degeneration (AMD) that leads to gradual and permanent loss of central vision due to the breakdown of cells in the retina.
Source: National Eye Institute (NEI)

Question 2

What causes geographic atrophy?

Accepted Answer

GA is primarily caused by aging and the gradual degeneration of retinal cells. Genetics, smoking, and prolonged exposure to sunlight may increase the risk.

Question 3

Is geographic atrophy the same as dry macular degeneration?

Accepted Answer

Geographic atrophy is the late stage of dry macular degeneration. While all GA cases are dry AMD, not all dry AMD cases progress to GA.

Question 4

How is geographic atrophy diagnosed?

Accepted Answer

GA is diagnosed through eye exams using imaging techniques like optical coherence tomography (OCT) or fundus autofluorescence, which show retinal thinning and cell loss.

Question 5

What does a person with geographic atrophy see?

Accepted Answer

People with GA often experience blurry or dim vision in the center of their visual field, while peripheral vision usually remains intact.

Question 6

Can geographic atrophy be treated?

Accepted Answer

Until recently, there were no approved treatments. However, new injectable therapies like pegcetacoplan have shown promise in slowing progression.

Question 7

What is the new treatment for geographic atrophy?

Accepted Answer

The FDA has approved treatments such as pegcetacoplan (Syfovre) and avacincaptad pegol (Izervay) to help slow the progression of GA in eligible patients.

Question 8

How fast does geographic atrophy progress?

Accepted Answer

Progression varies, but central vision loss often occurs gradually over several years. Some individuals may experience more rapid decline depending on lesion location.

Question 9

Who is at risk for developing geographic atrophy?

Accepted Answer

GA risk increases with age, especially in adults over 60. Other risk factors include smoking, family history of AMD, and certain genetic variants.

Question 10

How can people live with or adapt to geographic atrophy?

Accepted Answer

Low-vision aids, visual rehabilitation therapy, and lifestyle adjustments like improved lighting and contrast tools can help individuals maintain independence and quality of life.

Geographic Atrophy Medications