Expired Study
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Roanoke, Virginia 24153


Purpose:

The primary purpose of the study is to compare the performance of three soft bifocal contact lenses in terms of the vision provided by the lenses.


Criteria:

Inclusion Criteria: - The subject must between 35 and 70 years of age. - The subject must respond positively to at least one symptom on the "Presbyopic Symptoms Questionnaire" or be already wearing presbyopic contact lens correction ( e.g. reading spectacles over contact lenses, multifocal or monovision contact lenses etc.). - The subject's spherical equivalent distance refraction must be in the range of -1.00 to -6.00 in each eye. - Refractive cylinder must be less than or equal to -0.75 D in each eye. - The subject must have an add power of +0.75D to +2.50D in each eye. - The subject must have best corrected visual acuity of 20/20-3 or better in each eye. - The subject's must have at least 20/30-distance vision with the study contact lenses. - The subject must agree that they are comfortable with their vision prior to being dispensed the study lenses. - The subject must be an adapted soft contact lens wearer in both eyes. - The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol. - The subject must read and sign the STATEMENT OF INFORMED CONSENT and be provided a copy of the form. Exclusion Criteria: - Ocular or systemic allergies or disease that may interfere with contact lens wear. - Systemic disease, autoimmune disease or use of medication, which may interfere with contact lens wear. - Clinically significant (grade 3 or 4) corneal edema, corneal vascularization, corneal staining or any other abnormality of the cornea, which may contraindicate contact lens wear. - Clinically significant (grade 3 or 4) tarsal abnormalities that might interfere with contact lens wear. - Any ocular infection. - Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear. - Pregnancy or lactation - Any infectious disease (e.g., hepatitis, tuberculosis) or a contagious immunosuppressive disease (e.g., HIV). - History of diabetes. History of binocular vision abnormality or strabismus.


NCT ID:

NCT00808340


Primary Contact:

N/A


Backup Contact:

N/A


Location Contact:

Roanoke, Virginia 24153
United States



There is no listed contact information for this specific location.

Site Status: N/A


Data Source: ClinicalTrials.gov

Date Processed: October 09, 2019

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