Peritomy

A peritomy, or peritectomy, is a procedure carried out in eye surgery by ophthalmology, where a strip of the conjunctiva of an eye is removed, usually to correct pannus, where blood vessels begin to grow into the peripheral cornea.

Pannus in ophthalmology

In ophthalmology, pannus refers to the growth of blood vessels into the peripheral cornea. In normal individuals, the cornea is avascular. Chronic local hypoxia (such as that occurring with overuse of contact lenses) or inflammation may lead to peripheral corneal vascularization, or pannus. Pannus may also develop in diseases of the corneal stem cells, such as aniridia. It is often solved by peritomy.

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