Question
Wed August 29, 2012 By: Esha Esha
 

why do sunglasses not have power?

Expert Reply
Thu August 30, 2012
Sunglasses don't have power because they don't, ideally, change the image seen by the eye.
For people with normal eyesight the sunglasses shouldn't have any optical effect, other than to reduce the glare.
Home Work Help