Dilation

Dilation is required for most of the procedures performed in the imaging department.

Your pupil will usually constrict (get smaller) when you shine light into it, and dilate (get bigger) when it is dark. The pupil regulates the amount of light that enters the eye. Dilating drops prevent the pupil from constricting when bright light is aimed at your eye.

Widening (dilating) a patients pupils increases the angle of observation. This allows the technicians to image a much greater area and have a clearer view of the back of your eye.

After the pupils are dilated your vision may become blurred. Driving is not recommended when your pupils are dilated.

In general, your pupils will stay dilated for about three to four hours. Bring along some sunglasses for after the appointment. Your eyes will feel sensitive to bright light.