We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com. NASHVILLE, Tenn. — Successful multifocal contact lens ...

Refraction is the change in direction of light when it passes from one medium to another. The working of a lens is based on the refraction of light when they pass through it. Lens is a transparent ...

A refraction test is usually given as part of a routine eye examination. It may also be called a vision test. This test tells your eye doctor exactly what prescription you need in your glasses or ...

A refractive disorder is an ocular condition caused by changes in the shape of the eye, which prevents light from being focused sharply on the retina, creating unclear images. The causes may range ...

Porter Ophthalmology announced the release of a comprehensive new patient education article, Toric vs Non-Toric Lenses for Refractive Lens Exchange, offering clear, research-based information about ...