your pupils so they can look at the back of your eye Use a microscope and a thin beam of light to check different parts of your eye. This is called a slit lamp exam. They may dilate your eyes or ...

A beam splitter divides the light between the camera and the eyepiece of the slit lamp to simultaneously illuminate and view the eye, allowing a detailed examination of each eye segment.

Slit-lamp biomicroscopy: A similar type of exam is called slit-lamp biomicroscopy. For this exam, you'll sit in a chair in front of an instrument called a slit-lamp microscope. A slit lamp is a ...