In a first, scientists in China have created artificial photoreceptors to help blind mice see. We still don't have a full artificial eye. But we're edging closer, thanks to a wave of new technologies aiming to fix failing eye parts with human-made versions.

Do you know what the difference is between ophthalmologists and optometrists? A medical degree and many more years of training, for starters. A recent article from U.S. News and World Report explains what ophthalmologists are and how they can help you look after your vision and overall health.

Cornea transplants are the most common use of donated eye tissue. But it is important to remember that other parts of the eye are equally vital in the mission to save sight.

Light-colored rings around the iris can be common, but one case temporarily stumped doctors — until they diagnosed a rare condition.