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Okazaki, Japan

Patent
Menicon Co. | Date: 2015-05-22

A disinfecting solution for a nonionic soft contact lens, which solution contains polylysine as a disinfectant, and further contains: 0.1-1.0% by weight of a component (A) which is an acidic tonicity agent having at least one carboxyl group; 0.10-1.25% by weight of a component (B) which is a basic tonicity agent having an amino group; and 0.1-2.0% by weight of a component (C) which is at least one of a nonionic tonicity agent and an amphoteric tonicity agent, wherein each of the components (A) to (C) has a molecular weight of not larger than 200, and a ratio of a molar concentration of the component (A) to a molar concentration of the component (B) is not larger than 1.2. The disinfecting solution has a pH of 6.5-8.0, an osmotic pressure of 250-330 mOsm/kg and an electric conductivity of 130-750 mS/m.


Patent
Menicon Co. | Date: 2013-02-06

In order to reduce halos that occur in multifocal ophthalmic lenses, the mechanism of the phenomenon was elucidated and a solution was found based on the results. Thus provided are a multifocal ophthalmic lens having a structure and a manufacturing method for the same which can effectively reduce halos. A multifocal ophthalmic lens having a focal point formation region provided to an optical portion of a lens, which forms at least two focal points, wherein a cancellation region is provided to the optical portion, the cancellation region providing diffracted light of an amplitude distribution that reduces, on the image plane of the first focal point among the focal points, the amplitudes of light other than the light that forms the first focal point.


An object of the present invention is to provide an apparatus for optometric self-examination, a management server and a contact lens selection system using the same that are readily available to a new user and additionally shorten a time period required by an eye care practitioner for prescription or, even if no eye care practitioners prescription is provided, allow for selection of a contact lens preferred for the user. The apparatus for optometric self-examination includes an optometric data acquisition unit for determining at least a part of a shape of a cornea of a user in response to an operation by the user and acquiring optometric data, based on the shape of the cornea, and a contact lens data display unit for displaying a result of selection of a contact lens suited for the optometric data, based on the optometric data and the shape data of contact lenses.


Patent
Okayama University, Menicon Co. and Massachusetts Institute of Technology | Date: 2015-07-14

Provide are a peptide gel with practically sufficient mechanical strength and a self-assembling peptide capable of forming the peptide gel. The self-assembling peptide is formed of the following amino acid sequence: a


Providing a system which can exhibit a desired effect of improving hydrophilicity of a contact lens without causing adverse influences on sense of use of the contact lens and a cleaning effect, and which can effectively prevent adhesion of lipid stain. Also providing a packaging solution for the contact lens which can effectively suppress or prevent reduction of its viscosity with time even when the packaging solution is sterilized by heating. The contact lens is immersed in an aqueous solution which contains a low-molecular weight hyaluronic acid having a molecular weight of not higher than 80,000, or a salt or derivative thereof, and which has a pH of 6.0-8.0 and an osmotic pressure of 220-380 mOsm.

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