Anatomical Considerations
Potentially Adverse Effects

Corneal Epithelial Edema
This condition appears as a grey corneal haze and may be best observed with a slit lamp utilizing sclerotic scatter illumination and the unaided eye. The various slit lamp illuminations will be covered later in this section.

The severity of epithelial may be noted by grading it from +1, a barely perceptible haze to +4, which is a densely circumscribed area.