Dilated pupils (mydriasis or fixed pupils) are when your eyes' pupils, which let light into your eyes, become wider. This can happen due to medications used during an eye exam (mydriatic drops), other ...

some recreational drugs may also cause changes in pupil size. For example, using alcohol, marijuana, or cocaine can cause dilated pupils, and opiates can cause pupillary constriction or dilation.

Few men use the most effective erection drugs because they must be self-injected into the penis. Few men are willing, but ...

They noted that donations “increased for portraits with dilated pupils only in species with bright irises.” Scientists used altered photos of non-human primates across several different ...

Pupil size during sleep — whether contracted or dilated — could be key to understanding how the brain forms long-lasting memories, according to a study in mice, findings from which could help refine ...

Modern cataract surgery is a safe, effective procedure, but it wasn't always this way. The earliest record dates back to the fifth century BC.

At an SF show, comedian Kate Willett made clever jabs about the tech scene's obsession with psychedelics. Plus, a garage sale ...

Pink cocaine, also known as "tusi," is a powdered drug mixture that is often dyed pink and may have a sweet scent. Despite its name, it rarely contains actual cocaine. Tusi originally was made to ...