| abstract |
PROBLEM TO BE SOLVED: To provide a contact lens solution which has a sufficient preservative effect while being free of preservatives, and also has a function excellent in cushioning properties between a cornea and a contact lens. SOLUTION: It contains (A) at least one selected from the group consisting of boric acid or a salt thereof and tris (hydroxymethyl) aminomethane, (B) a metal chelating agent, and (C) a thickening agent, and pH 6.0-8.5, Osmotic pressure is 100-600 mOsm. And a solution for contact lenses having a kinematic viscosity of 0.9 to 10,000 mm 2 / s. |