This patient had “staining” along the superior cornea as shown here. Staining occurs when cells that have been sloughed off or damaged from any of a variety of causes. In this case no foreign body was found under the lid and no tear or rip was on the patient’s contact lenses. That creates a clinical dilemma. However I did switch this patient’s contact lens and the patient said it felt better. This picture is two days letter and the staining does look a little better. We’ll keep monitoring.