For this procedure, the doctor will first give anesthetic eye drops. The person will sit with their head resting on the microscope with a slit lamp and the doctor will place a special contact lens directly on the eyeball. The test should reveal any signs of increased eye pressure that may indicate glaucoma. A slit lamp is a microscope with a bright light that is used during an eye exam.
It allows the ophthalmologist to take a closer look at the different structures in the front and inside of the eye. It is a key tool for determining eye health and detecting eye diseases. When performing an examination, the eyelid and lower bulbar conjunctiva are examined. The lateral, medial, and superior conjunctival surfaces are examined.
The cornea is then examined by narrowing the bundle, followed by the structures of the anterior chamber. During the exam, the doctor will look through the microscope and adjust the light of the slit lamp to see certain parts of the eyes. It will then turn on the slit lamp and focus a narrow, high-intensity beam of light toward the eye. In addition, when the slit lamp is attached to a special magnifying lens, the doctor will be able to see the retina and optic nerve located at the back of the eye.
The slit lamp exam is particularly important for this purpose, as it allows the eye doctor to examine all major areas of the eye. At the end of the exam, the screw on the side of the slit lamp must be tightened to secure the instrument in position. The slit lamp allows the eye doctor to point a beam (or slit) of light at an angle at specific parts of the eye.
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