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 ...

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 ...

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.

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 ...

They also perceived primates with brighter irises as cuter, friendlier, and more attractive - but only if they had dilated pupils. According to the researchers, the findings suggest that pupil ...

How is the Dog Closing His Eyes Halfway used in memes? The meme is popular due to the posts’ relatability: we all have those moments when we’ve made a mistake or forgotten something and are ...