Inclusion Criteria:  Be 18 years or older and have full legal capacity to volunteer. Have physiologically normal anterior segments not exhibiting clinically significant biomicroscopy findings. Have no active ocular disease or allergic conjunctivitis. Not be using any topical ocular medications. Be willing and able to follow instructions. Have signed a statement of informed consent.  Exclusion Criteria:  Participating in a conflicting study in the opinion of the Investigator. Considered by the Investigator to not be a suitable candidate for participation.