Patent classifications
C11D3/0078
Use of PEO-PBO block copolymers in ophthalmic compositions
The use of poly(oxyethylene)-poly(oxybutylene) block copolymers in pharmaceutical compositions useful for modifying the surfaces of contact lenses and other medical devices is disclosed. The present invention is based in-part on a discovery that this class of compounds is particularly efficient in wetting hydrophobic surfaces, such as the surfaces of silicone hydrogel contact lenses and other types of ophthalmic lenses. Such compounds are also useful for cleaning purposes. The use of the compounds as surfactants in various types of compositions for treating contact lenses therefore represents a preferred embodiment of the present invention.
MOISTURIZING COMPOSITION OF A CONTACT LENS
A moisturizing composition of a contact lens is disclosed in the present invention. A rinse agent (ex. TEOA) is applied for bonding a moisturizing stabilizer (ex. HPMC) and a compound of a hydrophilic cosolvent (ex. PEG) and a moisturizing additive (ex. HA). Hence, the solubility of the moisturizing additive and the aqueous solution can be improved via applying the hydrophilic cosolvent; the stability of the combination of the moisturizing stabilizer and the moisturizing additive can be improved via the structural and the chemical stabilities of the moisturizing stabilizer itself. Meanwhile, the moisturizing composition disclosed can be directly applied to the raw material of the conventional contact lens during manufacturing the high-moisturizing contact lenses.
VISION CARE KIT
Provided are vision care kits and methods of their use. The kits contain first and second contact lenses having different primary functionalities or modalities, or both. The kits allow contact lens wearers to experience greater flexibility and customizability from their contact lenses.
HYPOCHLOROUS ACID BASED EYE DROP AND OPHTHALMIC COMPOSITION
The embodiments herein disclose a hypochlorous acid based ophthalmic composition, comprising stabilized hypochlorous acid. The stabilized hypochlorous acid is added in the ophthalmic composition as an anti-microbial agent and/or a preservative. The stabilized hypochlorous acid is added in the ophthalmic composition to be utilized for contact lens solution. The stabilized hypochlorous acid is added in the ophthalmic composition in a non-toxic predetermined amount. The non toxic predetermined amount of stabilized hypochlorous acid less than 0.05% v/v. The stabilized hypochlorous acid is added in the ophthalmic composition as a preservative in a predetermined amount ranging 0.0005% v/v-0.05% v/v. The stabilized hypochlorous acid is added in the ophthalmic composition as an anti-microbial agent after determining free available chlorine. The free available chlorine in the stabilized hypochlorous acid is in a range of 50 ppm-500 ppm. The predetermined ophthalmic compositions are selected from a group consisting of eyedrop solution, eyedrop suspension, eyedrop gel and ointment. anti-microbial eye drops, eye cleansing drops, ophthalmic lubricants and contact lens solutions.
LENS SOLUTION, CONTACT LENS, AND PRODUCTION METHOD THEREFOR
Provided is a lens solution which has excellent lipid detergency, exhibits high hydrophilization performance, and exhibits an excellent lipid adhesion preventive effect and an excellent lubricity-imparting effect when the solution is used to coat a lens. Disclosed is a lens solution containing a polymer having 2.5% to 95% by mass of the following repeating unit (A) and 2.5% to 95% by mass of the following repeating unit (B): (A) a hydrophilic repeating unit; and (B) a repeating unit having a polyoxyalkylene group in a side chain and having the end of the side chain formed from an alkyl group having 5 to 30 carbon atoms, an alkanoyl group having 5 to 30 carbon atoms, or an aryl group.
Ophthalmic and contact lens solutions containing simple saccharides as preservative enhancers
The present invention relates to an ophthalmic solution comprising 0.00001 to 10.0 weight percent of a simple saccharide, at least 0.00001 weight percent of a preservative, and not more than about 0.2 percent by weight chloride. The simple saccharide is chosen from the group consisting of: inositol; mannitol; sorbitol; sucrose; dextrose; glycerin; propylene glycol; ribose; triose; tetrose; erythrose; threose; pentose; arabinose; ribulose; xylose; xylulose; lyxose; hexose; allose; altrose; fructose; galactose; glucose; gulose; idose; mannose; sorbose; talose; tagatose; adlose; ketose; heptose; sedoheptulose; monosaccharides; disaccharides; sugar alcohols; xylitol; and polyol.
ARTIFICIAL TEAR, CONTACT LENS AND DRUG VEHICLE COMPOSITIONS AND METHODS OF USE THEREOF
The invention provides artificial tear compositions, artificial tear-gel compositions, contact lens storage compositions, contact lens treatment compositions, ophthalmological drug vehicle compositions and topical drug vehicle compositions comprising one or more nonionic surfactants with one or more non-Newtonian viscosity enhancing excipients and one or more of a polyol and or an electrolyte and methods of their use.
Electrochemical system for disinfecting and cleaning contact lenses
The present invention is generally related to a lens care system and method for disinfecting and cleaning contact lenses. A lens care system or method of the invention is based on electrolysis of an aqueous chloride solution for generating germicide species (e.g., chlorine, hypochlorous acid, hypochlorite, or combinations thereof) and subsequent in-situ electrolysis of hypochlorous acid or hypochlorite in the aqueous solution for neutralizing the generated germicide species.
PACKAGING SOLUTIONS
A packaging system for storing ophthalmic devices such as contact lenses and methods for packaging such ophthalmic devices with solutions is disclosed. The packaging system contains an unused, ophthalmic device in an aqueous packaging solution comprising tris(hydroxymethyl)aminomethane or a salt thereof; wherein the solution has an osmolality of at least about 200 mOsm/kg and a pH in the range of about 6 to about 9.
SYSTEM FOR DISINFECTING CONTACT LENSES
The present invention is generally directed to a hydrogen peroxide-based lens care system for disinfecting contact lenses. Unlike hydrogen peroxide-based system known in the prior art, a lens care system of the present invention involves electrochemically neutralizing of hydrogen peroxide after any desired period of disinfection time for which contact lenses have been immersed in a hydrogen peroxide-based lens care solution.