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 0
No exposure keratopathy
Grade I
Punctate epithelial erosions (PEEs) involving the inferior third of the cornea
Grade II
PEEs involving more than the inferior third of the corneal surface
Grade III
Macroepithelial defect (MED)
Grade IV
Stromal whitening in the presence of epithelial defect (SWED)