Optimization for Toric Contact Lenses

Inclusion Criteria: 1. They are at least 18 years of age. 2. They understand their rights as a research participant and are willing and able to sign a Statement of Informed Consent. 3. They have spherical refractive error at the corneal plane between +4.00 to -7.00DS 4. They have refractive astigmatism at the corneal plane of 0.75 to 2.25DC in one eye. 5. They are able to achieve distance HCHL visual acuity of +0.10 logMAR or better in each eye 6. They are a current soft contact lens wearer or have previous experience of successful soft contact lens wear in the past 3 years. Exclusion Criter…