if you are nearsighted what would your power and bc be in contacts?!
Question: If you are nearsighted what would your power and bc be in contacts?
would you be negative or positive
Answers:
Best Answer - Chosen by Voters
Power is always negative, but you must be careful because both nearsightedness and astigmatism require negative powers. The big difference is that for nearsightedness you need "Sph" and then a negative number. Astigmatism is instead "Cyl" and a negative number.
BC means base curve and has nothing to do with nearsightedness . It's simply a measure of the physical dimension of your eyes, not the power.
Nearsighted people take minus lenses.
The curvedness should fit the eye.