Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

If you’ve ever been frustrated when choosing a paint color, you’re not alone. This task is more difficult for men, who find it harder to distinguish between slight color differences. Source: Wikimedia ...

The new color, "olo," is a hyper-saturated version of blue-green Getty Scientists conducting targeted retinal stimulation claim to have discovered a new color. In a study published in Science Advances ...

What does 20/20 vision mean? When you visit your doctor or an eye care professional, you may be asked to read an eye chart. You may be told you have normal 20/20 vision. What does that really mean? An ...

The EnChroma® glasses, commercialized by a North American company, do not improve color vision for color blind people or correct their color blindness, and their effect is similar to that of other ...