A man undergoing slit-lamp examination

Your eye doctor may use a microscope called a slit lamp to examine the front of your eye. The microscope focuses an intense narrow line of light on your eye. The slit lamp provides a magnified, 3D view of the eye and allows your doctor to detect any small abnormalities. Used with special lenses held close to the eye, the slit lamp also provides detailed views of the back of the eye.

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