Medically reviewed by Bryan M. Wolynski, OD 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 ...

As our eyes encounter screens, our pupils constrict or get smaller, a process called miosis. “That’s the equivalent of squeezing a fist,” Applebaum maintains. And just as it is crucial to ...