What is a collection of white blood cells that occur subepithelial?

The correct answer, infiltrates, refers to the accumulation of white blood cells that can occur in the subepithelial layers of tissues, often as a response to inflammation or infection. In the context of eye health, infiltrates can develop in response to various factors like contact lens wear, leading to potential complications. This accumulation is typically indicative of the body's immune response, and recognizing infiltrates is crucial for effective diagnosis and management of ocular conditions.

Microcysts are small fluid-filled sacs that can be associated with other conditions but do not specifically refer to the collection of white blood cells. Hypertrophy refers to the enlargement of cells or tissues but is not specific to the collection of immune cells. Giant papillary conjunctivitis (GPC) involves immune responses that can include the formation of papillae in the conjunctiva but is not synonymous with subepithelial white blood cell collections, making infiltrates the most accurate terminology in this context.