There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...

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They say the eyes are "the window to the soul" and there's certainly much to be told about the enigmatic complexity of their varied colors. Dr. Rupa Wong, a board-certified ophthalmologist who owns ...

Many types of eye drops are available for treating dry eyes. Over-the-counter options are often effective. A doctor may recommend prescription options if they aren’t. Dry eye syndrome, also known as ...

Most of the periodical cicadas emerging across the eastern U.S. in this year's rare dual emergence event have blood-red eyes, but sightings of blue-eyed variants have recently been reported. When you ...

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A blue-eyed cicada that's on exhibit at the Field Musum in Chicago. Four-year-old Jack Bailey found the bug in his yard, and his family donated it to the museum. Daniel Le, Field Museum This spring, ...

A recent study from the University of Copenhagen has uncovered a remarkable truth:every blue-eyed person on Earth shares a common ancestor who lived between 6,000 and 10,000 years ago. This scientific ...

Davinia Beaver does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...