An imaging test ... astigmatism. It was invented by the German physiologist Hermann von Helmholtz in 1851, although an earlier model was developed in 1796 by Jesse Ramsden and Everard Home. A ...

Optical illusion tests offer a glimpse into one's subconscious by interpreting what is seen first in an image. TikTok creator ...

Even in the fall and winter, you will want to protect your eyes. These are the best prescription sunglasses to help you do just that. Executive Editor David Carnoy has been a leading member of ...

The identification of senescent cells is a long-standing unresolved challenge, owing to their intrinsic heterogeneity and the lack of universal markers. In this Comment, we discuss the recent ...

PC hardware is nice, but it’s not much use without innovative software. I’ve been reviewing software for PCMag since 2008, and I still get a kick out of seeing what's new in video and photo ...

The Amsler grid is a good test for people with Macular Degeneration. The Amsler grid tests the condition of the center of the retina or "macula" ...

It is a good test for screening for the development of "wet" macular degeneration in patients with "dry" macular degeneration.

This repository contains a web-based color blind test application designed for both adults and kids. The application provides an interactive test where users answer questions to evaluate color ...