The Adhesion of Transferrin to Contact Lenses

摘要

There are roughly 60 different proteins in human tears.1 However, five types of proteins predominate: albumin, immunoglobulins, lysozyme, transferrin and lactoferrin, and tear-specific prealbumin (tear lipocalin).2'' Lactoferrin, lysozyme, tear lipocalin, and immunoglobulin IgA are synthesized by the lac-rimal gland, while albumin arises from the blood plasma.4 The FDA currently distinguishes four different groups of contact lenses: FDA Group I—low water, nonionic; FDA Group II—high water, non-ionic; FDA Group III—low water, ionic; and FDA Group IV—high water, ionic.