Three mirror contact lens Biomicroscopy

In this examination a special contact lens is placed on the front of the eye. Local anaesthetic drops are instilled to numb the eye first so the examination should not be uncomfortable.

You will sit in front of a microscope, called a slit lamp. This examination allows the specialist to see a much larger area of the retina as the mirrors act like periscope.

You will need dilating drops for this procedure, it is recommended you do not drive.