Contact lenses comfort daily variatio

Recruitment & Eligibility

Status: Ongoing

Sex: All

Target Recruitment: 50

Inclusion Criteria

1. Age 18 to 35 years
2. Best corrected visual acuity in each eye of 20/25
3. Control population:
3.1. Current spherical contact lens wearer but not MyDay®
3.2. Spectacle refraction:
Sphere: -6.00D to + 2.00D
Astigmatism: 0.00D to -0.75D
4. Test population:
4.1. Current toric contact lens wearer but not MyDay® toric
4.2. Spectacle refraction:
Sphere: -6.00D to + 2.00D
Astigmatism: -0.75D to -1.25D

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

1. Acute and subacute inflammation or infection of the anterior chamber of the eye
2. Any eye disease, injury or abnormality that affects the cornea, conjunctiva or eyelids that would contraindicate contact lens wear;
3. Corneal hypoesthesia (reduced corneal sensitivity), if not aphakic
4. Severe insufficiency of lacrimal secretion (dry eyes)
5. Any systemic disease that may affect the eye or may be exaggerated by wearing contact lenses (e.g. acne and eczema)
6. Allergic reactions of ocular surfaces or adnexa that may be induced or exaggerated by wearing contact lenses or use of contact lens solutions
7. Any active corneal infection (bacterial, fungal, protozoal or viral)
8. 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
9. Monocular participants (only one eye with functional vision) or participants fit with only one contact lens
10. 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
11. History of corneal refractive surgery
12. Enrolment of the family members of the investigator, family members of the investigator’s staff, or individuals living in the households of these individuals
13. Current wearer of the control contact lenses MyDay® spherical or the test contact lenses MyDay Toric®