Sjögren's Syndrome

Tests
Tests for Sjögren’s syndrome may include:

• Positive Schirmer’s test. In this test, a piece of filter paper is hooked over the lower eyelid and left there for 5 minutes. It is used to assess dryness of the eyes, though is not specific for Sjogren’s.  Rose Bengal staining of the eyes can be used to look for scarring.
• Antinuclear antibodies (ANA) (positive) 
• Rheumatoid factor (RF) (often positive)
• Antibodies specific to Sjögren’s syndrome (SS): anti-SS-A and SS-B; SS-A is also called Ro, while SS-B is also called La (usually positive)
• Salivary gland antibodies

• In uncertain cases, salivary gland biopsy