What is the test time for both Schirmer 1 and Schirmer 2?

What is the test time for both Schirmer 1 and Schirmer 2?

• A. 5 minutes
• B. 10 minutes
• C. 2 minutes
• D. 15 minutes

Answer: (A)

Five minutes. That is the standard duration for both Schirmer 1 and Schirmer 2 because it provides a reliable, consistent window to measure tear production with a paper strip. Too short a time can underestimate tear output, while longer times don’t improve accuracy and can introduce variability from evaporation or patient discomfort. Schirmer I assesses tear production without anesthesia (basal plus reflex), and Schirmer II uses anesthesia to isolate basal tearing, but the test duration remains the same to keep results comparable. The amount of wetting is read after five minutes.

Five minutes. That is the standard duration for both Schirmer 1 and Schirmer 2 because it provides a reliable, consistent window to measure tear production with a paper strip. Too short a time can underestimate tear output, while longer times don’t improve accuracy and can introduce variability from evaporation or patient discomfort. Schirmer I assesses tear production without anesthesia (basal plus reflex), and Schirmer II uses anesthesia to isolate basal tearing, but the test duration remains the same to keep results comparable. The amount of wetting is read after five minutes.