The main purposes of the prefitting examination are to:

1. Determine ocular health and 
    suitability of contact lens wear

2. Obtain baseline data for future 
    reference

3. Obtain data to determine best  
    contact lens type, parameters of 
    the first diagnostic lens, and to be 
    able to order correct lens power

4. Consult with the patient as to the 
    suitability, risks, limitations and 
    expectations of contact lens wear

(This module assumes the student understands general examination procedures and, thus, most procedures are not described in detail.  Other modules or texts on refraction procedures should be consulted if any of the procedures are not understood).