The Effects of Diabetic Duration on Lacrimal Functional Unit in Patients with Type II Diabetes

Figure 3

A correlogram illustrates the strength of correlations between ocular surface clinical parameters in the diabetic patients. In the pie graphs, the clockwise direction indicates a positive correlation and counterclockwise direction a negative correlation. For the numbers on the left of the pie graph, the upper one indicates the correlation coefficient and the lower one the value (SPEED, standard patient evaluation of eye dryness; LLT, lipid layer thickness; NI-BUT, noninvasive tear film break-up time; TMH, tear meniscus height; MS, total percentage of meibomian gland dropout area in upper and lowers eyelids; SPK, superficial punctate keratopathy score; CS, corneal sensitivity; SIT, Schirmer I Test (total tear secretion)).