To prepare you for an optical coherence tomography (OCT) exam, your Eye M.D. will put dilating eye drops in your eyes in order to widen your pupil and make it easier to examine the retina.
Once your eyes are dilated, you will be seated in front of the OCT machine and will rest your head on a support to keep it motionless. The equipment will then scan your eye without touching it. Scanning takes about 10 to 15 minutes. Afterwards, your eyes may be sensitive to light for several hours from being dilated.
Next Page: What conditions can OCT help to diagnose?