Abstract: A designing method of a contact lens for myopia progression suppression including: providing a tonic accommodation relaxation region in which an additional power whose maximum value is from +0.25 to +0.75 diopters is set with respect to a correction power that is required for realizing a proper correction, the additional power being capable of relaxing a tonic accommodation without improving an aberration off an optical axis and an accommodation lag on the optical axis; and providing a proper correction region in which the additional power is not set at least on an optical center.

Abstract: A disinfection system of a contact lens comprising immersing the contact lens in a disinfecting solution containing hydrogen peroxide in a concentration of 1 to 10% and neutralizing the hydrogen peroxide in the disinfecting solution through contact with a metal catalyst, where the disinfecting solution contains an organic carboxylic acid or a salt of the organic carboxylic acid, the organic carbbxylic acid having a structure in which a hydroxyl group and a carboxyl group are bonded to one carbon atom; the disinfecting solution is adjusted to have a pH of 6 to 8; and the disinfecting solution after the neutralization is adjusted to have an osmotic pressure of 250 to 350 mOsm.

Abstract: 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.

Abstract: 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.

Abstract: An ophthalmic lens which gives excellent wearing comfort required for its use as a contact lens, and which has sufficiently high flexibility and an adequate degree of deformation recovery property required for its use as an intraocular lens. The ophthalmic lens is formed of a polymer having a young's modulus of 0.3-1.0 MPa and a stress relaxation rate of 10-20%.

Abstract: A polysiloxane-based macromonomer for an ophthalmic lens, which exhibits excellent compatibility with respect to a hydrophilic component such as a hydrophilic monomer. The polysiloxane-based macromonomer has at least one polymerizable group, a polysiloxane chain having a siloxane unit as a repeating unit, a polyoxyethylene chain in which a number of repetition of an oxyethylene group is two or more, and a polyoxyalkylene chain having an oxyalkylene group other than the oxyethylene group as a repeating unit, wherein an HLB value calculated according to a formula: [HLB value]=E/5 is within a range from 0.7 to 6.0, wherein E represents a weight fraction (wt %) of the oxyethylene group in a molecule of the polyxiloxane-based macromonomer.

Abstract: A high precision rigid gas-permeable contact lens edge curve polishing lathe includes a base provided at the bottom of a machine body. A first crank and a second crank are respectively provided on two sides of the base. A detent mechanism is provided on both the first crank and the second crank. The detent mechanism includes an ejector pin matching the rotational direction of the first crank and the second crank and a numerical display unit revealing the position of the ejector pin. The contact position of a polishing sponge on a spindle of the polishing lathe and a lens can be precisely positioned through numerical reading, realizing quantized control of the polishing of a lens edge, and enabling improvement and modification to the design of the lens edge to become simpler.

Abstract: A disinfection system of a contact lens comprising immersing the contact lens in a disinfecting solution containing hydrogen peroxide in a concentration of 1 to 10% and neutralizing the hydrogen peroxide in the disinfecting solution through contact with a metal catalyst, where the disinfecting solution contains an organic carboxylic acid or a salt of the organic carboxylic acid, the organic carboxylic acid having a structure in which a hydroxyl group and a carboxyl group are bonded to one carbon atom; the disinfecting solution is adjusted to have a pH of 6 to 8; and the disinfecting solution after the neutralization is adjusted to have an osmotic pressure of 250 to 350 mOsm.

Abstract: A presbyopia contact lens set especially for a user who has worn spherical contact lenses, a designing method for a presbyopia contact lens, and a manufacturing method for a presbyopia contact lens that uses such design method. The presbyopia contact lens set configured by combining a plurality of types of presbyopia contact lens having different specifications lens powers, includes the plurality of types of presbyopia contact lenses in which the radial lens power profile in a near-use region and that in a far-use region are defined using mutually different functions, the function for defining the radial lens power profile in the far-use region is set in accordance with a specifications lens power, and the radial lens power rate-of-change in the far-use region is made larger for lenses having a small specifications lens power than for lenses having a large specifications lens power.

Abstract: 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 practitioner's 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.

Abstract: A contact lens case including a container main body provided with a housing recess for storing a contact lens and a liquid agent, and a lid that is connected to the container main body via a hinge in a freely openable and closable manner. A lens holding body is displaceably housed in the housing recess, and by connecting the lid and the lens holding body via a connecting member, the lens holding body can undergo rising and falling displacement following open and close action of the lid around the hinge. A displacement restricting member is provided that restricts a direction of the rising and falling displacement of the lens holding body to the vertical direction that coincides with a depth direction of the housing recess.

Abstract: An object of the invention is to provide an application method capable of facilitating the application of the soft contact lens without using any instrument, a liquid for contact lenses capable of being used for the application method, and a soft contact lens package. The present invention is a method for applying a soft contact lens, including a shrinkage step of shrinking a soft contact lens by contacting the soft contact lens with a liquid for contact lenses, the liquid for contact lenses being capable of shrinking the soft contact lens to a state of being more intensively shrunken than an equilibrium state thereof in a physiological saline; and an application step of applying the shrunken soft contact lens to the eye, in which after the application step, the size of the soft contact lens is restored.

Abstract: Provided are a lens power measurement device and a lens power measurement method whereby lens power measurement results of a contact lens can be displayed in a manner which is easy to view, while maintaining fully satisfactory precision of the lens power measurement results. From lens power distribution information determined based on optical property measurement information of a contact lens, correction target information including positive and negative abnormal peaks on both sides of a lens central axis in a lens central area is selected. Lens power distribution measurement results are then obtained by applying substitution using a correction function that smooths out the abnormal peaks to the selected correction target information to smooth the lens power measurement values.

Abstract: 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.

Abstract: Provided is a contact lens case of a novel structure that will effectively supplement the sterilization effect which was insufficient in the past with non-heating type disinfectant methods such as the MPS method and hydrogen peroxide method, making it possible to realize an effective sterilization process on soft contact lenses. In a storage solution with a sterilizing action, a slanted loading member is provided, wherein a convex spherical lens loading surface is formed from an antimicrobial material and a contact lens is held in a slanted state such that a geometric center of the contact lens loaded on the lens loading surface is located at a position separated from a top of the lens loading surface.

Abstract: A contact lens case including a container main body provided with a housing recess for storing a contact lens and a liquid agent, and a lid that is connected to the container main body via a hinge in a freely openable and closable manner. A lens holding body is displaceably housed in the housing recess, and by connecting the lid and the lens holding body via a connecting member, the lens holding body can undergo rising and falling displacement following open and close action of the lid around the hinge. A displacement restricting member is provided that restricts a direction of the rising and falling displacement of the lens holding body to the vertical direction that coincides with a depth direction of the housing recess.

Abstract: Provided is a polymer material having superior water wettability and lubricity, and enabling persistence of the same by allowing the surfactant to be retained by the polymer material so as not to be gradually released. The present invention is directed to a polymer material including: [I] a polymer having a constitutional unit derived from (A) a polymerizable compound having an acryloyloxy group and not having a silicon atom; and [II] a surfactant. The content of the surfactant [II] is preferably 0.05% by mass or greater and 1% by mass or less. The surfactant [II] is preferably a nonionic surfactant having a polyoxyethylene group.

Abstract: 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: a1b1c1b2a2b3db4a3b5c2b6a4 where: a1 to a4 each represent a basic amino acid residue; b1 to b6 each represent an uncharged polar amino acid residue and/or a hydrophobic amino acid residue, provided that at least five thereof each represent a hydrophobic amino acid residue; c1 and c2 each represent an acidic amino acid residue; and d represents a hydrophobic amino acid residue.

Abstract: The present invention is directed to an ophthalmic lens integrally formed with a hydrogel, the hydrogel including a copolymer obtained from a composition containing (A) an ionic compound including a cation having a polymerizable functional group, and a fluorine-containing anion (hereinafter, referred to as (A) ionic compound), and (B) a hydrophilic compound having a polymerizable functional group.

Abstract: Provided is a contact lens of double thin type ensuring a comfortable wearing sensation, enabling improvement of oxygen permeability and tear exchange, and having a novel structure. An optical zone having no deviation of a center of gravity by a prism is formed. A pair of thin portions extending circumferentially and having a constant thickness are formed on both upper and lower sides of a peripheral zone, and a pair of thick portions extending circumferentially and having a thickness larger than that of the thin portions are formed on both left and right sides. One or more concavities are positioned symmetrically in a left-right direction during wear in a posterior surface of each of the thick portions. A minimum thickness at a portion where the concavity is formed is larger than the thickness of the thin portions.