I went to a doctor for my eye checkup. And I couldn’t read the last line at all. Doctor said this is the limit to your eye and no matter how strong a lens, you would never be able to read the last line

Question

But I don’t get it. Why would if I put a stronger lens, I wouldn’t be able to read the last line? She said you must have never been able to read the last line in your life, and she was correct, but I don’t understand the science at play here

In: 58

Answer 1

Glasses aren’t binoculars and don’t significantly enlarge what you see. They correct the lens of your eye so that it’s able to focus accurately, making the image you see as sharp as possible. If you still can’t read details then that’s not a focusing problem. Assuming you don’t have some other issue like cataracts, it means you’ve reached the detail limit of your retina, the part at the back of the eye that captures the focused images. Better glasses can’t help with that.