A similar technique in treating complications of trachoma, called pterygium, was used to remove the triangular-shaped part of the bulbar conjunctiva onto the cornea.
Topical antiviral medications are not absorbed by the cornea through an intact epithelium, but orally administered acyclovir penetrates an intact cornea and anterior chamber.
The liquid, which is contained in a thin elastic reservoir, conforms to the irregularities of the deformed cornea, allowing vision to be restored comfortably.