An ophthalmoscope lets doctors examine the inside of your eye. It has an angled mirror, various lenses, and a light. With it, our doctors can see the retina, the fundus (back of the eye), the optic nerve, the retinal veins and arteries, and detect certain problems that can affect the vitreous humor (the jellylike substance in the eye). The doctor will ask you to stare straight ahead while the beam of light is shone into the eye. Often, eye drops are used to dilate (enlarge) the pupil, which helps the doctor to have a better view of the inside of the eye. Ophthalmoscopy is painless but if eye drops are used, the patient’s vision may become temporarily blurred and sometimes sensitivity to light may be experienced for some time after the examination.