The development of new biocompatible ocular prostheses relies on the understanding of the chemical and physical nature of tears and the ocular environment. Once inserted into the body, foreign polymers are rapidly coated with a biofilm, which can alter the biocompatibility.
There is no exception when it comes to the insertion of a contact lens. The contact lens readily adsorbs and absorbs elements from the tear film such as proteins and lipids. The nature of the deposit is dependent on the lens material, patient tear profile and length/mode of wear. This can limit successful contact lens wear and may shorten the life of the lens.