Table 1

Tear secretion and tear film function

Patients
Mean (SD) 		Controls
Mean (SD) 		p Value
Tear flow (μl/min)1.1 (0.4)1.2 (0.5)0.7
Break up time (s)18 (10)16 (11)0.6
Dry eye symptoms (%)3326—
Schirmer test (mm/5 min)10 (3)18 (5)<0.001

  • ↵IDDM patients, n=86.

  • ↵Healthy controls, n=84.

  • ↵Student's t test between patients and controls.

  • ↵See text.