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The study is a bilateral, single-masked, single-arm, 4-visit dispensing study. There will be one study treatment, with the subject being dispensed lenses for 6 to 8 days, then lens power will be optimized (if necessary) and dispensed for a further 2 weeks to assess the clinical performance of investigational multifocal toric contact lenses.
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Inclusion and exclusion criteria
Inclusion Criteria:
Potential subjects must satisfy all of the following criteria to be enrolled in the study:
Read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form.
Appear able and willing to adhere to the instructions set forth in this clinical protocol.
Be at least 40 and not more than 70 years of age at the time of screening.
Own a wearable pair of spectacles if required for their distance vision.
Be an adapted soft contact lens wearer in both eyes (i.e. worn lenses for at least 8 hours per day at least two days per week for the past 4 weeks).
Be already wearing a presbyopic contact lens correction (e.g., reading spectacles over contact lenses, multifocal or monovision contact lenses, etc.) or if not respond positively to at least one symptom on the "Presbyopic Symptoms Questionnaire".
The subject's distance spherical component of their refraction must be in the range of either -1.25 D to -3.75 D, or +1.25 D to +3.75 D.
The subject's refractive cylinder must be -1.00 D to -1.50 D in each eye, with the cylinder axes in the range of 90°±30°.
The subject's ADD power must be in the range of +0.75 D to +2.50 D in each eye.
The subject must have best corrected distance visual acuity of 20/20-3 or better in each eye.
Exclusion Criteria:
Potential subjects who meet any of the following criteria will be excluded from participating in the study:
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95 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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