Daily Archives: May 19, 2021

A Quick Peek at Eyeglass Lenses

Vision Basics: Refractive Errors In a healthy eye, the cornea is a clear dome-shaped window that allows light rays to pass through and focus on the retina behind it. Distortions in the cornea can cause light rays to bend (or refract) at odd angles and fail to achieve sharp focus; this is called refractive error. Eyeglass […]