What color is a tree, or the sky, or a sunset? At first glance, the answers seem obvious. But it turns out there is plenty of variation in how people see the world — both between individuals and ...

There are millions of them in our eye’s retina—special photoreceptor cells known as rods and cones that allow us to perceive a wide range of light intensities and colors. "There is a critical need to ...

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 ...

Floridians are jumping on the newest TikTok trend: changing your eye color. The young and old have discovered that turning brown eyes blue or hazel eyes green can be as simple as putting in color ...