What does VLK stand for in contact lens terminology?

VLK stands for Vascularized Limbal Keratitis, which refers to a specific condition characterized by inflammation of the cornea at the limbus, the border area between the cornea and the sclera. This condition is often associated with contact lens wear, particularly when there is inadequate oxygenation of the cornea or poor hygiene practices.

When the cornea is deprived of adequate oxygen, the body responds by attempting to heal itself, which can lead to vascularization, meaning new blood vessels grow into the cornea from the limbus. This is a sign of hypoxia and can lead to complications such as scarring or even permanent damage if left untreated. Identifying VLK is crucial for contact lens practitioners because it underscores the importance of proper lens fit, material selection, and care procedures to maintain corneal health.

The other options provided are not recognized terms or conditions within the field of contact lens practice. They do not correspond to established definitions or recognized medical conditions related to lens wear and corneal health, making Vascularized Limbal Keratitis the only accurate choice in this context.