What agent is used to inspect the corneal epithelium after cataract extraction?

Fluorescein is a vital agent used to inspect the corneal epithelium, particularly following cataract extraction. This fluorescent dye binds to the epithelium, allowing healthcare providers to visualize the cornea under a cobalt blue light. It highlights areas of disruption or damage to the corneal surface, which is essential for assessing the integrity of the epithelium post-surgery. By providing a clear distinction between healthy and compromised tissue, fluorescein aids in diagnosing any potential complications that might arise after the procedure.

Other agents like proparacaine are primarily anesthetics used to numb the eye but do not provide the visual contrast necessary to assess corneal health. Betadine, an antiseptic solution, is more relevant during the preoperative preparation to minimize infection risk rather than for inspecting corneal tissue. Opaque dyes are not typically utilized in this context, as they do not offer the same clarity or specificity for corneal evaluations.