It generally takes about 20 to 30 minutes for your pupils to fully open. These cells convert light into electrical signals, which the brain processes as visual images.Įye dilation also gives the eye doctor a better look at the optic nerve, which is connected to the retina and transmits impulses to the brain to be interpreted as visual images.ĭuring a dilated eye exam, your eye doctor can detect: The retina consists of several layers, including a layer that has photoreceptor cells. Once your pupils are fully dilated, your doctor has a better view of the retina, which is the sensory membrane at the back of your eyeball. This allows more light into the eye, similar to the way you might open a window blind to let more light into a dark room. These special drops cause the pupils to widen, or dilate, fully. What are dilated pupils?ĭuring eye dilation, an eye doctor puts dilating eye drops into both of your eyes.
During eye dilation, the procedure allows an eye doctor to better examine the back of your eye to diagnose common eye and other medical conditions or diseases.Ī dilated eye exam is an important part of managing your eye health, since it can reveal eye and other medical conditions that may not otherwise cause obvious symptoms. Eye dilation widens the pupils, which are the black circles in the center of the iris of your eye.
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