A Clinical Comparison of Two Soft Multifocal Contact Lenses

Inclusion Criteria: They are at least 42 years of age and have capacity to volunteer. They understand their rights as a research subject and are willing and able to sign a Statement of Informed Consent. They have had a full eye examination within past two years (by self-report) They are willing and able to follow protocol. They habitually use vision correction for near vision (multifocal soft contact lenses, sphere lenses for monovision, sphere lenses for distance vision correction and spectacles for near vision correction, or have a different spectacle prescription for distance and near vision correction) and have done so for at least the past three months. They have refractive astigmatism of no greater than -0.75DC. They are expected to be able to fitted with the study lenses within power range available, and to achieve binocular distance HCVA of +0.20 or better in the study lenses. Exclusion Criteria: They have an ocular disorder which would normally contra-indicate contact lens wear. They have a systemic disorder which would normally contra-indicate contact lens wear. They are using any topical medication such as eye drops or ointment. They are aphakic. They have had corneal refractive surgery. They have any corneal distortion resulting from previous hard or rigid lens wear or have keratoconus. They are pregnant or lactating. They have an eye or health condition including an immunosuppressive or infectious disease which would, in the opinion of the investigator, contraindicate contact lens wear or pose risk to study personnel; or a history of anaphylaxis or severe allergic reaction.