For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays—without the ...

The Nigeria Optometrist Association, NOA, have identified uncorrected refraction error as one of the most common eye ...

Rainbows Rainbows are one of nature's most enchanting spectacles, forming beautiful arcs of color in the sky. They occur when ...

Sonia H. Yoo, MD, a cornea, cataract, and refractive surgery specialist and a member of the planning committee for the ...