Refitting Multifocal Contact Lens Wearers With a Different Multifocal Contact Lens

This was an interventional, prospective, open label, sequential design study. Participants wore each study contact lens on a daily disposable wearing modality for 14 ± 3 days and attended the clinic for a total of three study visits.

Inclusion criteria

• Age 40 years and older;
• Current multifocal contact lens wearer (other than MyDay® multifocal but can include Biofinity® multifocal);
• Spectacle refraction:

• Distance: Sphere: -6.00D to + 4.00D
• Astigmatism: 0.00D to -0.75D
• Near Addition: Low +0.75D to +1.25D; Medium +1.50D and +1.75D; High +2.00D to +2.50D
• Best corrected visual acuity of at least 20/25 in each eye. - The prospective participants will be given a Participant Information Sheet to read and an Informed Consent Form to sign prior to any evaluation.

Exclusion criteria

To be eligible as a participant, each candidate shall be free of any ocular or medical condition that may affect the results of this study. The following are specific criteria that exclude a candidate from enrolment in this study:

• Acute and subacute inflammation or infection of the anterior chamber of the eye.
• Any eye disease, injury or abnormality that affects the cornea, conjunctiva or eyelids that would contraindicate contact lens wear;
• Corneal hypoesthesia (reduced corneal sensitivity), if not aphakic
• Severe insufficiency of lacrimal secretion (dry eyes).
• Any systemic disease that may affect the eye or may be exaggerated by wearing contact lenses (e.g. acne and eczema).
• Allergic reactions of ocular surfaces or adnexa that may be induced or exaggerated by wearing contact lenses or use of contact lens solutions
• Any active corneal infection (bacterial, fungal, protozoal or viral).
• Newly prescribed (within the past 30 days) use of some systemic medications (such as antihistamines, decongestants, diuretics, muscle relaxants, tranquilizers, stimulants, anti-depressants, anti-psychotics, oral contraceptives) or new prescription eyedrops which is not rewetting/lubricating eyedrops for which contact lens wear could be contraindicated as determined by the investigator;
• Monocular participants (only one eye with functional vision) or participants fit with only one contact lens;
• Subjects with slit lamp findings greater than grade 1 (e.g. edema, infiltrates, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival, anterior segment inflammation) as per ISO 11980, any previous history or signs of a contact lens related corneal inflammatory event (past corneal ulcers), or any other ocular abnormality that may contraindicate contact lens wear at the enrolment visit;
• History of corneal refractive surgery
• Enrolment of the family members of the investigator, family members of the investigator's staff, or individuals living in the households of these individuals.
• Current wearer of the test contact lens, MyDay® Multifocal.