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Examination of the Anterior Chamber
PUPOSE To check for the presence of cells and flare in the aqueous.
INDICATIONS
Indicated when you suspect an active iritis or anterior uveitis，based on the patient’s symptoms，history，or other examination findings．
STEP-BY-STEP PROCEDURE
1．This procedure is usually done at the completion of the routine slit lamp examination because of the need to adjust a number of controls on the slit lamp．
2．Reduce all the room illumination．Wait a few minutes until you are dark adapted．
3．Set the illumination arm 30°from the straight ahead position．
4．Adjust the magnification to a high setting(25× or 40×)．
5．Create a conical beam by adjusting the width of the beam to a narrow parallelepiped and adjusting the vertical slit control to the shortest setting．
6．Direct the beam into the pil．Move the slit lamp forward and back, alternately focusing between the cornea and the anterior surface of the lens, looking for the presence of cells or flare in the aqueous．
RECORDING
·The results of this procedure are included in the slit lamp recording section, under “anterior chamber．”
·Record for each eye separately．
·If the anterior chamber is clear, record “no cells or flare” or “no C or
F.”
·If the anterior chamber is not clear，record your observations．The number of cells and the amount of flare may be graded on a scale of 1 to 4，or quantified as minimal，moderate．or severe．
EXAMPLES
·0D 0S
no cells or flare AC moderate flare，no cells
·OD OS
grade 2 + flare AC clear，no C or F
minimal cells |
