Deposits are substances that adhere to the
surface of the contact lens during wear. They can be divided into organic and
inorganic deposits. The organic deposits are formed by metabolites of protein or
fat origin, which are normal components of tears. Inorganic deposits are
composed of elements of microscopic particles of dirt. Deposits can cause inflammation, eye irritation or redness.
Improper care of contact lenses, or using contaminated solution, can create
bacterial deposits on your lenses.
Deposits do not affect the quality of vision, and that is why they are
often neglected by the contact lens wearers. It is important to respect the
manufacturer's re¬commended length of use of contact lenses. Every
material reacts differently to deposits, and its recommended exchange cycle