Sjögren's syndrome other diagnostic studies: Difference between revisions
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==Other diagnostic studies== | ==Other diagnostic studies== | ||
* | *The most commonly used tests for dry eyes of Sjögren's syndrome include: | ||
**'''Schirmer test''' | **'''Schirmer test''' | ||
***A folded test strip of sterile filter paper is placed on the margin of each lower eyelid at the junction of the middle and lateral thirds. Ask the patient to close eyes gently for five minutes then the extent of wetting is measured. Wetting of less than 5 mm is demonstrative of tear deficiency and it is a classification criteria for Sjögren’s syndrome. | ***A folded test strip of sterile filter paper is placed on the margin of each lower eyelid at the junction of the middle and lateral thirds. Ask the patient to close eyes gently for five minutes then the extent of wetting is measured. Wetting of less than 5 mm is demonstrative of tear deficiency and it is a classification criteria for Sjögren’s syndrome. | ||
**'''Ocular surface staining''' | **'''Ocular surface staining''' | ||
***It may be assessed to evaluate the damage to conjunctival and corneal epithelial cells with vital dyes such as rose Bengal dye, fluorescein and lissamine green dyes. | ***It may be assessed to evaluate the damage to conjunctival and corneal epithelial cells with vital dyes such as rose Bengal dye, fluorescein and lissamine green dyes. | ||
**'''Tear break-up time''' | |||
***It is performed to evaluate tear stability by staining the tear film with one drop of fluorescein dye and measuring the time in seconds for a dry spot. Tear break-up time ≤10 seconds is indicative of a tear deficiency. | |||
==References== | ==References== | ||
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Overview
Other diagnostic studies
- The most commonly used tests for dry eyes of Sjögren's syndrome include:
- Schirmer test
- A folded test strip of sterile filter paper is placed on the margin of each lower eyelid at the junction of the middle and lateral thirds. Ask the patient to close eyes gently for five minutes then the extent of wetting is measured. Wetting of less than 5 mm is demonstrative of tear deficiency and it is a classification criteria for Sjögren’s syndrome.
- Ocular surface staining
- It may be assessed to evaluate the damage to conjunctival and corneal epithelial cells with vital dyes such as rose Bengal dye, fluorescein and lissamine green dyes.
- Tear break-up time
- It is performed to evaluate tear stability by staining the tear film with one drop of fluorescein dye and measuring the time in seconds for a dry spot. Tear break-up time ≤10 seconds is indicative of a tear deficiency.
- Schirmer test