The sheer variety of color options for sunglasses lenses can make choosing a pair feel overwhelming. Summer days and outdoor adventures go hand in hand. You know what else goes alongside? A great pair ...

While humans possess three kinds of color-sensitive cones, birds have four. This is an Inside Science story. Hummingbirds can see colors humans can only imagine, an ability that now sheds light on an ...

The colored part of the eye surrounding the pupil is called the iris. It automatically regulates the amount of light entering the eyes by regulating the size of the pupil. Light is the primary ...

In life, few things are certain. But one is: It becomes harder to see well as you age. “There are three things we cannot avoid: death, taxes, and presbyopia, the gradual loss of the ability to read up ...

The order in which colors are named worldwide appears to be due to how eyes work, suggest computer simulations with virtual people. These findings suggest that wavelengths of color that are easier to ...

From velvety purples to fiery reds, many people can see a spectrum of vivid colors via the human eye. Others, however, may have limited hue perception due to certain conditions. Animals, on the other ...

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 ...

Scientists have long presumed that the creatures in the deep ocean experienced a dark, colorless world. But some of the fish who live there may be able to see colors thanks to a newly discovered ...

You learn something new every day, and inquisitive minds on TikTok have discovered that the color of their irises can look different under certain angles, which they have dubbed the "side eye ...

Vision can naturally change with age. Certain conditions, like cataracts or glaucoma, may also develop with age and affect vision. Regular eye tests can help protect vision through early detection. It ...