One-month Clinical Evaluation of Silicone Hydrogel Definitive 65 HPT Contact Lenses

One-month Clinical Evaluation of Silicone Hydrogel Definitive 65 HPT Contact Lenses

Comparison of different contact lens materials.

This is a 1-month, open-label, bilateral, parallel-group, randomised, daily wear study. Two-thirds of the subjects will wear the Test lenses in both eyes, and one-third will wear the Control lenses in both eyes.

Inclusion Criteria:

• willing and able to sign informed consent form
• ages 18 years or older
• Subjects must have owned spectacles or contact lenses prior to enrolment for this trial
• Spherical power between -10.00 D and +10.00 D (at vertex distance 0 mm)
• Astigmatic power ≤0.75 D

Exclusion Criteria:

• Eye injury or surgery within 3 months immediately prior to enrolment for this trial
• Pre-existing ocular irritation that would preclude contact lens fitting
• Currently enrolled in an ophthalmic clinical trial
• Evidence of systemic or ocular abnormality, infection or disease which is likely to affect successful wear of contact lenses or use of the accessory solutions, as determined by the investigator
• Any use of medications for which contact lens wear could be contradicted, as determined by the investigator
• Current extended-wear users (sleep-in overnight)
• Current monovision lens wearers
• Pregnant women and nursing mothers
• Best-corrected visual acuity worse than 6/9 (LogMAR: +0.20; Snellen decimal: 0.63)