Eye dilation refers to a widening of the pupils. When doctors dilate the pupils during an eye exam, it typically lasts between 4 and 24 hours. Doctors sometimes use eye dilation drops to dilate a ...

If you have your pupils dilated for an eye exam, they may stay dilated for several hours. Your eye health provider dilates your pupils so they can get a clear view of the internal structures of your ...

Dilated pupils (mydriasis) occur when the pupils open larger than usual. This normally happens in darker lighting to allow more light into the eye, but dilated pupils can also indicate an underlying ...