Two drops (0.1 mL) of 0.5% ketorolac tromethamine ophthalmic solution, instilled into the eyes of patients 12 hours and 1 hour prior to cataract extraction achieved measurable levels in 8 of 9 patients' eyes (mean ketorolac concentration 95 ng/mL aqueous humor, range 40 to 170 ng/mL).
Restoring the pH of the scalp may help prevent hair loss from dandruff, bacteria or fungus. Every liquid substance on Earth has a pH, or an acid-base, measurement. Very few substances are neutral; most are either acidic, such as vinegar, or basic, such as bleach.
1 Douching and cleansers: Any vaginal infusion of water or other fluids can affect vaginal pH. 2  The pH of water is 7, and fragrances and perfumes can also irritate the vagina. 3  Menopause or pregnancy: These are times where hormones fluctuate, which is associated with elevated pH.