What problems can contact lenses cause?
Problems may arise for a variety of reasons, but they are usually relatively easy to solve. Here are some of the basic problems: • Giant Papillary Conjunctivitis This is characterised by general eye itching and contact lens intolerance. It is readily diagnosed by eversion of the upper eyelid and observing the “cobblestone” appearance underneath. It is generally thought to be due to an immune response to protein deposits on the lens surface. This can be remedied by more frequent lens changes or the use of mast cell stabilisers. Occasionally you may be advised to stop contact lens wear altogether. • Bacterial Corneal Ulceration This is a more serious problem associated with contact lens wear. There is typically pain, watering of the eye and occasionally blurred vision, depending upon the location. Diagnosis is usually made by taking a scrape of the corneal surface and identifying the pathogen. Treatment is most commonly in the form of eye drops or eye ointment. For more serious infection
