What is a slit lamp?
Slit lamps are used to observe the health of your cornea, your iris and your lens.
The optician will ask you to place your head against a frame and your chin in a rest while they look through a powerful microscope at each eye.
It's also used in combination with a high powered handheld lens to provide the optician with a 3D view of the back of the eye.
You should seek professional advice if you are concerned about your eye health.Book an eye test