What characteristics should contact lens materials have?
Because the contact lens is an optical device that is inserted directly into the eye and so there is contact with the cornea, it must meet strict criteria on the properties of the material from which are made. A contact lens must be safe for the eye and comfortable to wear. It is therefore placed considerable emphasis on the materials for their manufacture have the following excellent properties.
What materials are contact lenses made from?
The materials from which contact lenses are manufactured, has undergone great changes during development. So, how changed structure of contact lenses, depending on the acquisition of new knowledge on the anterior segment of the eye and the development of science requirements placed on flexibility, breathability, ease of production and others and compelled to finding progressive solutions to individual problems. A development of new advanced materials are still progressing forward, but not limited contact lens corneal metabolism found only in theoretical terms.
