Corneal Fluorescein staining (0–15)
CORNEA, PUNCTATE KERATITIS
Corneal fluorescein staining grade with fluorescein sodium-impregnated paper strips (Haag-Sterit) was evaluated according to the NEI Scale that relies on a chart that divides the cornea into five sections and assigns a value from 0 (absent) to 3 (severe) to each section, based on the amount, size, and confluence of punctate keratitis, to obtain a maximum score of 15 points [