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. 2021 Jun 28;15:2803–2811. doi: 10.2147/OPTH.S318885

Figure 2.

Figure 2

OSDI, lipid layer thickness, Schirmer, osmolarity, loss area of MG, NIBUT and tear meniscus height grade frequencies at before, 2–3 weeks and 6 months after IPL and LLL treatment. OSDI grade: normal (0–12), mild (13–22), moderate (23–32) and severe (33–100). Lipid grade: abnormal (<60), borderline (60–80) and normal (>80). Schirmer grade: abnormal (<5), borderline (5–10) and normal (>10). Loss area of MG grade: abnormal (>60), borderline (40–60) and normal (<40). Osmolarity grade: abnormal (>320), borderline (300–320) and normal (<300). NIBUT grade: abnormal (<5), borderline (5–10) and normal (>10). Tear meniscus height grade: abnormal (<0.22), borderline (>0.44) and normal (0.22–0.44). Green square include variables that improved grade’s frequency: OSDI (p<0.001), lipid layer thickness (p<0.001) and Schirmer (p=0.023). Black square include variables that didn´t change grade’s frequency: loss area of MG (p=0.773), NIBUT (p=0.076) and tear meniscus height (p=0.153). Red square included variables that worsened grade’s frequency: osmolarity (p<0.001).

Abbreviations: NIBUT, non-invasive break up time; MG, meibomius gland; IPL, intense pulsed light therapy; LLL, level low light therapy.