About 10 years ago, my elderly father was diagnosed with dry AMD and then later we were told it was ‘advanced’ and that he had ‘geographic atrophy’. At the time, I didn’t understand what that was.
Here’s an excellent article about what those terms really mean. It’s on the great website WebRN: Macular Degeneration. If you haven’t looked at it, I recommend that you do after you read this article.