The retinal exam is how we look inside of the eye. The lining in the back of the eye is where all of the receptors known as rods and cones are located.
This area is known as the retina. The exam of the back of the eye also allows us to see the optic nerve, which is the structure responsible for taking the image from your eye to your brain.
To look at the retina, we employ several different methods. Most people are familiar with the dilation of the pupils. This is where we instill drops to open up the pupil. We get a large view of all of the structures in the back of the eye. This may cause some temporary blurring of the vision and some light sensitivity.
We also have cameras capable of taking panoramic photos of the eye's inner lining and laser scanners that can look at the different layers of the retina.
All of this information can be used to look for retinal scars, glaucoma, diabetes, hypertension, macular degeneration, and many other ailments of the eye.