i need to know if your "short sighted" i.e can't see from far are you + (plus) dioptres or - (minus) dioptres?
it would be a big help thankyou!
2007-12-30 23:41:28 · 4 answers · asked by Anonymous in Health ➔ Optical
here is a link to that..
http://en.wikipedia.org/wiki/Dioptre
2007-12-30 23:44:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Nearsightedness is (-) Diopters, Farsighted and Hyperopic are (+) Diopters
2007-12-31 08:40:59 · answer #2 · answered by Seeno†es™ 6 · 0⤊ 0⤋
If you are near sighted, they prescribe a minus (concave) lens; if you are farsighted, or for reading glasses they use a plus (convex) lens. Of course, there may be other components to the perscription, but this is the basic idea.
2007-12-31 08:31:03 · answer #3 · answered by Flying Dragon 7 · 0⤊ 0⤋
im near sighted, i cant see clearly if it is too far from me
2007-12-31 07:46:38 · answer #4 · answered by Anonymous · 0⤊ 0⤋