Schirmer 2 testing is used to measure which type of tearing?

Schirmer 2 testing is used to measure which type of tearing?

• A. Emotional
• B. Basal
• C. Reflex
• D. Mixed

Answer: (B)

Schirmer II testing is focused on tear production in response to a stimulus, i.e., reflex tearing. By applying topical anesthesia to suppress ocular surface sensation and then nasal stimulation to provoke tearing, this test isolates the reflex pathway that drives the lacrimal gland. The result reflects how well the lacrimal gland can respond to sensory stimuli, separate from resting baseline secretion. This is different from basal tear production, which is the resting, non-stimulated tear flow and is not what Schirmer II targets. Emotional tearing is driven by emotion and not tested here, and a mixed result would imply both resting and stimulus-driven tears, which Schirmer II does not isolate. Schirmer I, in contrast, measures total tear production (basal plus reflex) without anesthesia.

Schirmer II testing is focused on tear production in response to a stimulus, i.e., reflex tearing. By applying topical anesthesia to suppress ocular surface sensation and then nasal stimulation to provoke tearing, this test isolates the reflex pathway that drives the lacrimal gland. The result reflects how well the lacrimal gland can respond to sensory stimuli, separate from resting baseline secretion. This is different from basal tear production, which is the resting, non-stimulated tear flow and is not what Schirmer II targets. Emotional tearing is driven by emotion and not tested here, and a mixed result would imply both resting and stimulus-driven tears, which Schirmer II does not isolate. Schirmer I, in contrast, measures total tear production (basal plus reflex) without anesthesia.