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Slit Lamp Examination 1
News
Slit Lamp Examination 1

Slit Lamp Examination 1

January 01, 2015

Slit Lamp Examination

 

The slit lamp exam uses an instrument that provides a magnified, three-dimensional (3-D) view of the different parts of the eye. During the exam, your doctor can look at the front parts of the eye, including the clear, outer covering (cornea), the lens, the colored part (iris), and the front section of the gel-like fluid (vitreous gel) that fills the large space in the middle of the eye.

 

Special lenses can be placed between the slit lamp and the cornea (or directly on the cornea) to view deeper structures of the eye, such as the optic nerve, retina, and the area where fluid drains out of the eye (drainage angle). A camera may be attached to the slit lamp to take photographs of different parts of the eye.

 

Fluorescein dye may be used during a slit lamp examination to make it easier to detect a foreign body, such as a metal fragment, or an infected or injured area on the cornea. 


Why It Is Done

 

Routine slit lamp exams are done to find eye problems at an early stage and to guide treatment if eye problems develop.

 

A slit lamp exam may be done:

 

As part of a routine eye exam along with other procedures to evaluate the eye, such as ophthalmoscopy, vision testing, or tonometry (to measure pressure in the eye).

To look at structures in the back of the eye, such as the optic nerve or retina.

To help detect disorders in the structures in the front of the eye, such as infection or injury to the cornea, cataracts , conjunctivitis, or iritis.

To help detect and monitor glaucoma or macular degeneration.

To check for a foreign body, such as a metal fragment, on or in the eye.

To detect eye problems that may be caused by other diseases, such as diabetes or rheumatoid arthritis.

To monitor complications such as bleeding after an eye injury.

To monitor complications such as cataract formation that occur because of chemotherapy, radiation treatment, or after a bone marrow transplant.

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