pH of healthy tears
Eyes that are healthy continually create the perfect environment. That's why Biotrue multi-purpose solution is uniquely formulated to match the pH of healthy tears – maintaining the eye’s natural condition and enabling optimal activation of our dual disinfectants.
Maintains the eye's natural condition
Biotrue pH is more like the eyes1
- The pH of lens care solutions can have an impact on patient comfort – especially upon lens insertion
- Biotrue solution is designed to cause little physiological change when introduced to the eye
1 Results from a pH comparison study of three separate lots of Biotrue, CIBA Clear Care, AMO COMPLETE Easy Rub, Alcon OPTI-FREE Express, and Alcon OPTI-FREE RepleniSH. The pH of the test solutions was determined using a Fisher Scientific accumet excel XL25 pH meter. Five pH measurements for each solution were taken, averaged, and evaluated in comparison to the pH range of healthy tears, as determined by Adler’s Physiology of the Eye, Clinical Application. C.V. Mosby Company, 1981, as well as the mean pH of tears as determined by Yamada M, et al. Current Eye Research, 1997; 16:5,482-486.
2 Results from a clinical trial in which a total of 291 subjects were enrolled wearing a range of marketed soft contact lenses and using various soft contact lens care products. Subjects were dispensed Biotrue and participated in CAWI (Computer Aided Web Interviewing) between day 7 and day 11 of the clinical trial. Subject responses were measured using a six-point Likert Scale in which 1 = strongly disagree and 6 = strongly agree. Results represent reported percentage agreement ratings.