How To Change Glasses Prescription To Contact Lenses. The base curve or appropriate designation of the lens. These numbers often change (or disappear) between your glasses prescription and your contact lens prescription, especially with higher powers.
These numbers often change (or disappear) between your glasses prescription and your contact lens prescription, especially with higher powers. The diameter of the lens, when appropriate. Here we will draw two reference lines 180° and 90°.
Fc is the power needed in contact lenses f is the power in the glasses x is the distance between the lenses in glasses and your eye.
4.00 d +0.25 d 6.00 d +0.50 d 8.00 d +0.75 d 10.00 d +1.00 d 12.00 d +1.25 d 14.00 d +1.50 d 16.00 d +1.75 d. Can i use my glasses prescription for contact lenses? You will need to have this prescription measured by an optometrist to get the exact power difference, as various factors will affect your prescription. Specifically, if you are nearsighted your contact lenses could be too strong.