What happens during OCT?
To prepare you for an optical coherence tomography (OCT) exam, your ophthalmologist may put dilating eye drops in your eyes in order to widen your pupil and make it easier to examine the retina.
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 5 to 10 minutes. If your eyes were dilated, they may be sensitive to light for several hours after the exam.
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