Figure 2. Relation of meibomian gland (MG) expressibility grades with tear functions, ocular surface disorder, and MG acinar unit density and diameters. The MG expressibility grade also showed significant relations with the mean BUT values, DR-1 interferometry grades, TEROS values and fluorescein scores (p<0.05) except the mean Schirmer test and Rose Bengal staining scores (p>0.05; A-F). Both the density and diameter of acinar units were significantly related with the MG expressibility grades (p<0.05; G and H).