Is there a big difference between -2 and -2.50 and -2.50 and -3 or not?!
Question: Is there a big difference between -2 and -2.50 and -2.50 and -3 or not?
Would the difference in what they could each see WITHOUT their glasses be very dramatically different or really quite similar?
Answers:
Best Answer - Chosen by Voters
Some people have a much higher tolerance for blur, so comparisons are difficult , but in general the one with the - 2.00 would be able to suppress the blur in that eye a lot easier than the other eye, so could probably function a lot better without glasses , using mainly that eye with the - 2.00
At - 2.50 it becomes a lot more difficult to do , so the second person would normally have more blur, even in the best eye.
But, I have seen some that are comfortable rarely wearing their glasses even with - 3.00 in both eyes.
They probably get by with a bit more squinting which helps clear up the blur. Even different pupil size can affect how one sees without glasses compared to another person of the same prescription.
Optician