Dilated Pupils: Causes, Side Effects & Exercise Impact

Dilated pupils can occur naturally during exercise or as a reaction to medications and eye drops. Understanding the side effects of dilating and numbing drops is essential for managing adverse ocular reactions.

Dilated Eyes When Exercising

Published Aug,14 2017 | By Kathryn Walsh

The size of your pupils fluctuates dozens of time during the day in response to changing light. Assuming you're not exercising in the dark, some other factor is at play if your pupils are dilated during a workout.