While it sounds like quite a mouthful, giant papillary conjunctivitis (GPC) is a common eye condition. It’s actually an allergy to contact lenses. It generally occurs in patients who have worn contact lenses for years. They come in concerned that their contacts are no longer comfortable and that they have a slight discharge from their eyes. “But I’ve worn contacts for years without problems” is their response when told of the diagnosis. It’s precisely that long duration of wear that triggers the condition.
Patients with asthma, hay fever or animal allergies may be at greater risk of developing GPC. This condition is believed to be a reaction to protein deposits building up on the contact lenses. The name comes from what we see when we flip the upper eyelid: 1-2 mm bumps called “giant papillae”.