In addition to optical indications, contact lens devices have a wide range of therapeutic applications in modern ophthalmology practice (Steele 2002). Optometrists and dispensing opticians working within an ophthalmology setting, either in a hospital clinic or in their practice, will encounter such cases on a regular basis. Such devices may be used to protect injured, diseased or dysfunctional tissue and to aid the return to a more normal anatomical and functional state.