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
You could have “glasses” that let you read that line, but those would be binoculars, not spectacles with a single lens per eye. Not a viable solution for day-to-day use.
Eyeglasses do not magnify what you are seeing (single lenses can be used to magnify, but magnifying glasses need to be held close to the thing being magnified), they fix the oddities in the shape of your eye. And once those are fixed, you may be able to get some tiny benefit from lighting, but likely the limiting factor in your ability to make out small detail is not your cornea or your lens, but your retina. In camera terms, and in a gross oversimplification, once you are perfectly focussed, it is the megapixels that matter, and your eye only has so many of those.
That line is likely small enough that hardly anyone can read it even with perfect glasses, that it is beyond the “megapixels” of the average eye. Nothing wrong with not being able to read a line, but if that got worse – if even with new glasses you could not read a line you could read before – that would be a sign that something is going wrong with your eyes and you may need additional tests and treatment. Your eyes should not lose a significant amount of “pixels” throughout most of your life.
Latest Answers