The purpose of this study to evaluate the overall performance of PRECISION1™ for Astigmatism contact lenses with MyDay® Toric contact lenses.
Subjects will be expected to attend 4 visits and wear study lenses daily for approximately 10 hours per day. On the day prior to the Week 1 Follow-up visit of each crossover period, subjects will be asked to wear the respective study lens for at least 16 hours. The expected duration of subject participation in the study is approximately 3 weeks.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Enrollment
64
Soft contact lenses for optical correction of astigmatism, used as indicated
Soft contact lenses for optical correction of astigmatism, used as indicated
Alcon Investigator 6565
Maitland, Florida, United States
Alcon Investigator 6567
Pittsburg, Kansas, United States
Alcon Investigator 8097
Sterling Heights, Michigan, United States
Alcon Investigator 6313
Powell, Ohio, United States
Percent of lenses with axis orientation within ±30 degrees inclusive from the intended axis, 10 minutes after lens insertion
Axis orientation (orientation of the scribe mark) will be assessed by slit lamp examination and recorded as deviations from intended axis.
Time frame: Day 1, 10 minutes after lens insertion, each product
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Alcon Investigator 6401
Warwick, Rhode Island, United States
Alcon Investigator 6353
Memphis, Tennessee, United States