
03/21/2024
Why is my contact lens prescription different than my glasses prescription?
Since contact lenses are fit right on top of the cornea they are worn with virtually NO VERTEX DISTANCE. This can prove problematic; however, because most customers are refracted at a 10 to 14 mm distance. Due to the fact that there is such a great distance between refraction and fit for contact lenses all contact lens prescription over + or – 4.00 diopters need to be compensated for vertex distance.