Bilateral Dispensing Clinical Trial of Stenfilcon A Against Etafilcon A for Astigmatism

Inclusion Criteria

• •Is at least 17 years of age for Canada and 18 years of age for the USA and has full legal capacity to volunteer;
• •Has read and signed an information consent letter;
• •Is willing and able to follow instructions and maintain the appointment schedule;
• •Is an adapted soft contact lens wearer;
• •Requires a spherical contact lens prescription between -1.00 to -6.00 inclusive in each eye
• •Has spectacle astigmatism: -0.50 to -1.50D (Diopter) cylinder (Axis: 90±20, 180±20 in both eyes);
• •Willing to wear contact lens in both eyes for at least 8 hours per day, 7 days per week;
• •Has manifest refraction visual acuities (VA) equal to or better than logMAR equivalent of 20/25 in each eye;
• •To be eligible for lens dispensing, the subject must have VA of logMAR equivalent of 20/30 or better in each eye with the study lenses and the investigator must judge the fit as acceptable.