Clinical Study

Efficacy of Simple Eye Ointment, Polyethylene Cover, and Eyelid Taping in Prevention of Ocular Surface Disorders in Critically Ill Patients: A Randomized Clinical Trial

Table 1

The grading system for OSD severity.

The severity of ocular surface disorder

Grade 0No exposure keratopathy
Grade IPunctate epithelial erosions (PEEs) involving the inferior third of the cornea
Grade IIPEEs involving more than the inferior third of the corneal surface
Grade IIIMacroepithelial defect (MED)
Grade IVStromal whitening in the presence of epithelial defect (SWED)
Grade VStromal scar
Grade VIMicrobial keratitis