Dave RahardjaI am begging website owners to always provide a light mode. It’s an accessibility issue for me: my aging eyes are no longer able to view light-on-dark text for extended periods without severe ghosting/afterimages.
Merilee D. Karr, MD, MFA@drahardja
Ghosting? Is that like double vision? (Medical term: Diplopia) If you close either eye, the image is clear?
I get that, too, but only after heavy exertion, like a long uphill hike, or hard labor in the garden. Since it's "exertional," (another medical term), my symptom raises the question of whether enough blood or nutrition is reaching my eyes when I exercise. Currently getting tested. I have no heart problems.
I also have astigmatism. Can just astigmatism cause double vision???
Ghosting? Is that like double vision? (Medical term: Diplopia) If you close either eye, the image is clear?
I get that, too, but only after heavy exertion, like a long uphill hike, or hard labor in the garden. Since it's "exertional," (another medical term), my symptom raises the question of whether enough blood or nutrition is reaching my eyes when I exercise. Currently getting tested. I have no heart problems.
I also have astigmatism. Can just astigmatism cause double vision???
@merileedkarr Not quite. The effect I’m referring to is like if you accidentally get the sun in your eye: the bright spot burns a portion of your retina and it takes many minutes for it to go away.
When I look at a dark page, the light letters are so bright compared to the background that they sear themselves into my retina, so I get after-images as I continue reading and scanning. Sometimes it gets so bad that the after-images persist even if I stop looking at the page.
I think it’s different from astigmatism, which can cause blurriness with bright lines as well.