Fig. 7From: Image-based quantitative analysis of tear film lipid layer thickness for meibomian gland evaluationA Comparison of lipid layer thickness (LLT) between four different groups. Group I (Hyposecretory MGD patients), Group II (dry eye syndrome without MGD), Group III (hypersecretory MGD patients), and Group IV (healthy volunteers as a control group). (n = 6, 7, 7, 14 patients for Group I, II, III, IV respectively), **indicates p < 0.01, ns indicates p > 0.5 and ***indicates p < 0.001Back to article page