[Keratitis associated with contact lens wear]

Keratitis is a rare complication associated with contact lens wear, always presenting a threat to the patient's vision. In most cases the patients seek medical care for a painful, reddened eye that is watering or produces discharge. In most cases a light-colored lesion staining with fluorescein is seen on the cornea. The most common causative organism is Pseudomonas aeruginosa. Representative culture specimens from the cornea and conjunctiva as well as from the contact lens are important in respect of directing the treatment. Even if the inflammation can in most cases be treated, keratitis always leaves a scar on the cornea and may require further surgical interventions to restore patients vision.