Purpose: Use to measure total tear secretions
Procedure:
1. Uses a 5 x 35 mm strip of Whatman-41 filter paper.
2. At 5 mm end of filter paper, a fold is present
3. Fold end of filter paper is place in lower fornix at the junction of lateral one-third and medial two-thirds.
4. Patient looks up and avoids blinking or closing eyes for 5 minutes.
Measurement:
After 5 minutes, the doctor removes the filter paper and measures how much of it has become moist.
|
Wetting of filter paper from 5 mm end |
Grade |
|
>15 mm |
Normal |
|
10 mm |
Mild kerato conjunctivitis sicca (KCS) |
|
5 mm |
Moderate KCS |
|
<5 mm |
Severe KCS |
Other tests for dry eye disease-
1. Tear film break up
2. Schirmer-I test
3. Rose bengal staining
