I just went to the eye doctor and he said I was a little nearsighted and my prescription is O.D. -0.50 DS and O.S. -0.75 DS. I know O.D. is right eye and O.S. is left eye but what does the -0.50 and 0.75 and DS mean?
An eye that is nearsighted or farsighted only has a single spherical correction, in units of diopters. Apparently, this doctor writes this as DS (diopter spherical). Other doctors would write this:
OD: SPH -0.50
OS: SPH -0.75
If you had astigmatism, each eye would have two more numbers, a cylindrical correction (also in diopters, and I would assume this doctor would write "DC") and an axis. You don't have this in your prescription.
What your prescription says is that you have mild nearsightedness in both eyes.
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Verified answer
An eye that is nearsighted or farsighted only has a single spherical correction, in units of diopters. Apparently, this doctor writes this as DS (diopter spherical). Other doctors would write this:
OD: SPH -0.50
OS: SPH -0.75
If you had astigmatism, each eye would have two more numbers, a cylindrical correction (also in diopters, and I would assume this doctor would write "DC") and an axis. You don't have this in your prescription.
What your prescription says is that you have mild nearsightedness in both eyes.
1
D- diopeters
S- spheres
I think! Your prescription is almost the same as mine. Mine is -0.50 for both eyes.