Lens Deposits
 

Protein deposits can frequently form on both soft and rigid types of lenses. With soft lenses, the regular use of enzyme cleaners as well as proper disinfection and daily cleaning of lenses can help prevent the protein deposition. Rigid lenses may develop deposits especially during seasons with high pollen counts, and polishing the lenses usually will buff off any deposits.

When a lens develops deposits, the eye can become irritated, itchy, and red. Wearing time may be decreased, and the vision may be somewhat blurred. Complications such as "giant papillary conjunctivitis (GPC)" may occur, which can limit the use of contact lenses for an extended period of time. Once deposits form on a soft lens, the lens usually has to be replaced. Rapid development of deposits on lenses is a valid reason to consider disposable lenses. Some contact lenses, like CSI brand lenses, are resistant to deposit formation.