Hi there!
Are you given the choices of concave and convex lenses?
If yes then,
Which lens helps a person who is far sighted?
Which lens helps a person who is near sighted?
Someone will be glad to review your response if you would like.
What eyeglasses would you prescribe for persons with the following conditions:
a) A near point of 49.8cm ?
b) A far point of 49.8cm ?
2 answers
I need to figure out the diopter.
1 answer