Table 1

Baseline characteristics between the control and omega-3 groups

Control group (n=34)
(artificial tears without rTG form of omega-3)
Omega-3 group (n=32)
(artificial tears with rTG form of omega-3)
P value
Age (years)66.28±15.1464.56±11.960.135
Sex (women, %)22 (64.7%)20 (62.5%)0.195
TBUT (s)3.71±1.663.40±1.200.386
Schirmer’s test (mm)9.56±5.979.97±7.090.958
Oxford score0.94±0.651.16±1.050.534
OSDI score13.15±8.9824.06±12.58<0.001
DEQ score7.59±3.8813.13±5.30 <0.001
MMP-9 grade, negative/positive (trace/weak/positive/strong)9/25 (20/1/2/2)12/20 (14/2/1/3)0.430
  • DEQ, Dry Eye Questionnaire; MMP-9, matrix metalloproteinase-9; OSDI, Ocular Surface Disease Index; rTG, re-esterified triglyceride; TBUT, tear break-up time. Bold values denote statistical significance at the p < 0.05 level.