A dilated eye exam is an ophthalmologic examination that examines the back of the eye, including the retina, the macula
, the vessels of the retina, and optic nerve
head. Before the exam, it is necessary to instill a substance in the eye that will enlarge the pupil and secure it: these are called mydriatic eye drops. Then, the ophthalmologist
will send light through the pupil, allowing him to study the deep structures of the eye. This exam is fast and absolutely painless. The dilated eye exam may reveal inflammation, retinal damage, glaucoma, or other eye abnormalities. It can also monitor the development of diabetes
and their impact on the eye.