Nof Corporation

Mao Maruhashi

Nobuyuki Sakamoto

Yosuke Matsuoka

Shunsuke Sakurai

Norio Iwakiri

Yoshihisa Shimamura

Koji Miyamoto

Nobuyuki Yoshioka

Yohei Takada

Iwakiri Norio

Matsuoka Yosuke

Sakamoto Nobuyuki

Provided is an ophthalmic solution of which preservative component, hexamethylene biguanide, contained therein is inhibited from being adsorbed on soft contact lenses and eye droppers. The ophthalmic solution contains, at a specific ratio, (A) hydroxypropyl methylcellulose having 28.0 to 30.0 mass % methoxy groups and 7.0 to 12.0 mass % hydroxypropoxy groups, both with respect to the total amount of the hydroxypropyl methylcellulose, at a methoxy group/hydroxypropoxy group ratio of 2.5 to 4.0 by mass, wherein a 2 mass % aqueous solution of the hydroxypropyl methylcellulose at 20&#xb0; C. has a viscosity of 50 to 4000 mPa&#xb7;s; (B) sodium chloride or potassium chloride; (C) hexamethylene biguanide or a salt thereof; (D) 2-methacryloyloxyethyl phosphorylcholine/butyl methacrylate copolymer; and (E) water.

Ophthalmic solution

Provided are a contact lens care preparation capable of imparting durable surface lubricity and amebic adhesion inhibitory effect to a contact lens surface through a simple treatment, and a contact lens packaging solution utilizing the same. The contact lens care preparation is composed of a solution containing 0.01 to 2 weight/volume % of a polymer having particular monomer units with a phosphorylcholine-like group, particular (meth)acrylamide derivative units, and particular monomer units with a hydrophobic group at a particular ratio, and a weight average molecular weight of 5,000 to 2,000,000, and is useful as a contact lens packaging solution.

Contact lens care preparation and packaging solution

Growing community of inventors

Kawasaki, Japan

Mao Maruhashi