Evaluation of Comfilcon A and Senofilcon A Lenses

Inclusion Criteria

• •Subjects must satisfy the following conditions prior to inclusion in the study:
• •Has had an oculo-visual examination in the last two years
• •Is at least 18 years of age and has full legal capacity to volunteer
• •Has read and understood the information consent letter
• •Is willing and able to follow instructions and maintain the appointment schedule
• •Is correctable to a visual acuity of 20/30 or better (in each eye) with their habitual vision correction
• •Currently wears soft contact lenses at least 3 days a week, 8 hours a day
• •Has clear corneas and no active ocular disease
• •Has not worn lenses for at least 12 hours before the examination
• •Have normal eyes with no evidence of abnormality or disease. For the purposes of this study a normal eye is defined as one having:
• •* No amblyopia
• •* No evidence of lid abnormality or infection (e.g. entropion, ectropion, chalazia, recurrent styes)
• •* No clinically significant slit lamp findings (e.g. infiltrates or other slit lamp findings Grade 2 or above: corneal edema, tarsal abnormalities, and conjunctival injection).
• •* No other active ocular disease (e.g. glaucoma, history of recurrent corneal erosions, cornea \[infiltrates\], conjunctiva, lids, and intraocular infection or inflammation of an allergic, bacterial, or viral etiology)
• •* No aphakia
• •* Has prescription to match the available power range.