OCT Conventional tests
parameters Schirmer TBUT Staining
r-value p-value r-value p-value r-value p-value
TMH (μm) 0.437 0.000 0.363 0.000 -0.489 0.000
TMD (μm) 0.215 0.016 0.153 0.091 -0.285 0.001
TMA (mm2) 0.354 0.000 0.295 0.001 -0.458 0.000
TMH: Tear Meniscus Height, TMD: Tear Meniscus Depth, TMA: Tear Meniscus Area, TBUT: Tear-film Break-Up Time, R: Pearson’s Correlation Coefficient, P: Significance of Correlation.
Table 3: Correlation between tear parameters in diabetes mellitus patients.