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. 2011 Mar 30;52(4):2006–2049. doi: 10.1167/iovs.10-6997f
N vs. DE411 N vs. DE414 N vs. EDE414 ADDE vs. EDE414
TFI Cutoff DE < 96 DE < 240 EDE, NA EDE, NA
(Sensitivity/specificity) (64.7/60) (83%/40%) (NA) (NA)
N vs. DE417 N vs. EDE417 ADDE vs. EDE417
Ratio of Evaporation/Total Tear Flow
    Cutoff DE > 15 EDE > 15 EDE, NA
    (Sensitivity/specificity) (NA) (NA) (NA)
Ratio of Evaporation/TTR
    Cutoff DE > 20 EDE > 20 EDE, NA
    (Sensitivity/specificity) (NA) (NA) (NA)