Crossed Cylinder Calculator icon

Crossed Cylinder Calculator

Alta Vista LLC
$1.99
4.0 out of 5

About Crossed Cylinder Calculator

Determine resultant lens over existing lens combined with over refraction. Makes contact lens fitting more accurate. Useful in refining high powered eyeglass prescriptions using over refraction. Quick and easy to use application determines resulting contact lens prescription or spectacle prescription using lens currently worn and over refraction data. Exact results or round to one quarter diopter.

Crossed Cylinder Calculator Screenshots