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 ...

Online refractive eye exam company Opternative has launched a new white-labeled service for eye care professionals (ECPs) called EZRx. "The digital refraction (EZRx) and visual acuity screener are ...

An autorefractor helps detect the lens power required to accurately focus light on your retina. It takes a few seconds and requires you to put your chin on the chin rest and look towards the picture ...

To demonstrate a quick way of calculating the optical difference between two refractions using vector analysis, and to express this as a score for examination purposes. An existing formula is applied, ...

A standard ophthalmic exam is a comprehensive series of tests done by an ophthalmologist or optometrist. These doctors specialize in eye health. They’ll use these tests to check both your vision and ...

Forbes contributors publish independent expert analyses and insights. I do mergers & acquisitions in retail/consumer and write about trends. The prescription eyewear business has had the same ...