- Symptoms include ocular discomfort, foreign body sensation, tearing, photophobia and conjunctival hyperemia.
- Single or multiple, 1-2 mm corneal infiltrates with minimal overlying epithelium disruption
- Infiltrates are usually located superiorly and parallel to the limbus with an area of clear cornea between the infiltrate and the limbus.
- May occur secondary to:
- Contact lens wear as a consequence of corneal hypoxia
- Immune response (hypersensitivity) to preservatives in contact lens care products
- Treatment options include cessation of contact lens wear, topical antibiotics and/or topical corticosteroids.
- Corneal scrapings for stains and cultures should be considered with larger infiltrates complicated with epithelial defect, anterior chamber inflammation and ocular pain.