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Table 6 The opacity and permeability assessments of the cornea

From: Efficacy and local irritation evaluation of Eriobotrya japonica leaf ethanol extract

In vitro irritancy score (IVIS)UN GHS
≤ 3No Category
>  3; ≤ 55No prediction can be made
>  55Category 1
  1. IVIS = mean opacity value + (15 × mean permeability value)
  2. UN GHS United nations globally harmonized system of classification and labelling of chemicals