Presbyopia & Astigmatism Eye Diseases
Conditions
Interventions
The participants will attend the clinic for two study visits :
At the first visit the participant will be fitted with the study contact lenses. A set of visual measurements and questionnaires will be
Sponsors
CooperVision International Limited
Eligibility
Sex/Gender
All
Age
40 Years to 85 Years
Inclusion criteria
Inclusion criteria: 1. Age 40 years or greater 2. Have read and understood the participant Information Sheet 3. Have read, signed and dated the Informe Consent 4. Best corrected visual acuity of at least 20/25 in each eye 5. Have normal eyes with the exception of the need for visual correction 6. Current soft contact lenses wearer 7. Spectacle refraction: 7.1 Distance Sphere: -6.00 D to -0.50 D 7.2 Astigmatism (Cylinder): -0.75 D to -1.75 D 7.3 Axis: 10°, 20°, 30°, 70°, 80°, 90°, 100°, 110°, 150°, 160°, 170°, 180° 7.4 Near Addition: +0.75 D to +2.50 D 8. Be willing and able to adhere to the instructions set in the clinical protocol and maintain the appointment schedule
Exclusion criteria
Exclusion criteria: 1. Ocular anterior segment infection, inflammation, abnormality, or active disease that would contraindicate contact lens wear 2. 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 investigatorMonocular participants (only one eye with functional vision) or participants fit with only one lens 3. Monocular participants (only one eye with functional vision) or participants fit with only one lens 4. Any moderate or severe ocular condition observed during the slit-lamp examination at the enrolment visit 5. History of herpetic keratitis, ocular surgery or irregular cornea 6. Known pregnancy or lactation during the study period 7. Enrolment of the investigator or his/her staff, family members of the investigator, family members of the investigator’s staff, or individuals living in the households of these individuals
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overall vision satisfaction at the completion of the wearing period measured using a 100-point Visual Analogue Scale (VAS) at visit 2 | — |
Countries
England, United Kingdom
Contacts
Public ContactDeborah Moore
Outcome results
None listed