Subjects will wear 2 of 2 study contact lenses for a wearing time of approximately three to four hours at each of the visits in order to take measurements on binocular functional visual performance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
24
contact lens made with hioxifilcon A material
contact lens made with hioxifilcon A material with a cosmetic ring on the lens
Optometry Technology Group, Ltd.
London, United Kingdom
The Binocular Functional Visual Performance Under Distance Day Time Conditions (250 cd/m2) for Centrally Presented High Contrasts (HC) Time Controlled Visual Acuity (TCVA) Targets.
Time Controlled Visual Acuity (TCVA) was assessed at 4 m using 250 cd/m2 luminance. The luminance requirements were same at the target and at the eye. Binocular functional visual performance was measured for the centrally presented high contrasts targets.
Time frame: 15 minutes post lens fit
The Binocular Functional Visual Performance Under Distance Night Time Conditions (2.5 cd/m2) for Centrally Presented HC TCVA Targets.
Time Controlled Visual Acuity (TCVA) was assessed at 4 m using 2.5 cd/m2 luminance. The luminance requirements were same at the target and at the eye. Binocular functional visual performance was measured for the centrally presented high contrasts targets.
Time frame: 15 Minutes post lens fitting
The Binocular Functional Visual Performance Under Intermediate Vision Indoor Conditions (50 cd/m2) for Centrally Presented HC TCVA Targets.
Time Controlled Visual Acuity (TCVA) was assessed at 67 cm using 50 cd/m2 luminance. The luminance requirements were same at the target and at the eye. Binocular functional visual performance was measured for the centrally presented high contrasts targets.
Time frame: 15 Minutes post lens fitting
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