Fig. 1From: Efficacy and tolerability of preservative-free 0.0015% tafluprost in glaucoma patients: a prospective crossover study(a) Corneal erosion grade 0; Little to no erosion (b) Corneal erosion grade 1; erosion on lower than 1/3 of the area of the entire cornea (c) Corneal erosion grade 2; erosion on 1/3 to 2/3 of the area of the entire cornea (d) Corneal erosion grade 3; erosion on the nearlyentire corneaBack to article page