"Miosis" is a medical term that describes the constriction of the pupils. Learn its causes, symptoms, and how to treat it.

Think you have sharp eyes? Here’s a fun challenge for you! Hidden among a sea of number 5s is a sneaky little number 3—can you spot it? This optical illusion is a real test of your observation skills.

A vision test may help diagnose dementia 12 years before a diagnosis, according to research. Here, experts explain vision and ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

A TIA is the same as a stroke, except the symptoms only last for a short time. However, it is a warning that you could be at risk of having another stroke. Mini strokes can have a number of symptoms, ...

Glaucoma, a chronic eye disease, gradually damages the optic nerve, without showing any symptoms, but slowly leading to vision loss and even blindness, if left untreated. Nearly 90% of glaucoma cases ...

Research shows those who later developed dementia performed significantly worse at the “triangle test” than those who ...

Researchers successfully pulled off the first eye stem cell transplants to help heal cornea damage, and the results speak for ...

Researchers found that those who later developed dementia had performed poorly on a visual sensitivity test taken at the ...

In today's optical illusion challenge, a tricky brain teaser tests your observation skills. Hidden among a sea of "20s" is a ...

The image, which was shared on Reddit, shows a cat snuggled in a bed – but many people have been left scratching their heads ...