Abstract: An intraocular lens insertion tool with a tool body for accommodating an intraocular lens and adapted to insert into an eye the intraocular lens through displacement of the lens in an axial forward direction by a plunging member, and to push out the lens through an insertion tube section disposed at an axial distal end of the tool body. The insertion tube section has an inclined orifice that opens on diagonal to the center axis of the insertion tube section. The plunger member has a sliding part that during displacement thereof in a direction of plunging into the tool body will slide against the tool body. A resistance graduating mechanism is provided for gradually increasing operation resistance of the plunger member by gradually increasing contact force on the sliding part as the lens gradually emerges from the inclined orifice through plunging of the plunger member into the tool body.

Abstract: An intraocular lens insertion tool with a tool body for accommodating an intraocular lens and adapted to insert into an eye the intraocular lens through displacement of the lens in an axial forward direction by a plunging member, and to push out the lens through an insertion tube section disposed at an axial distal end of the tool body. A base plate of a resting portion that houses the lens is provided with side plates that respectively project from two widthwise edges of the base plate to both sides in a thickness direction of the base plate thereby imparting to the resting portion a generally “H” shaped cross section. The tool body inclusive of the resting portion and the insertion tube section is integrally formed from light-transmissive synthetic resin material whereby the lens housed within the resting portion is viewable from an outside through the base plate.

Abstract: A contact lens having a mark on at least one of an anterior face and a posterior face thereof, wherein the improvement including: the mark being defined by a concave annular section having inside and outside peripheral borders of circular shape, and a center projection situated in a center of the concave annular section; an outside diameter dimension of the concave annular section is held within a range of 0.1-0.5 mm; a widthwise center section of the concave annular section in radial cross section is a flat section having smaller depth change and greater radius of curvature than widthwise side sections; and at least the flat section of the mark has a rough surface The method of manufacturing the contact lens is also disclosed.

Abstract: The present disclosure provides a contact lens package containing a contact lens in a compressed state. In one exemplary embodiment, the overall internal depth of the package is less than the natural sagittal depth of the contact lens. Different single-use contact lens package shapes and configurations may be used. In some embodiments, a spring disc is included in the packages to help present the contact lens to the user when the package is opened. The contact lens packages may be adhered or clipped to a card or other carrier sheet, and may be housed in a number of different secondary packages.

Abstract: To provide an ophthalmic lens container of novel structure, whereby without the use of any special utensil, a liquid such as a preserving solution can be drained, while keeping an ophthalmic lens held in the container. An ophthalmic lens container 210 includes a container body 212, wherein a cavity 224 has an opening inside face 228 of generally heart shape in a plane view. A constricted lower end of the lower section of the heart shape in the opening inside face has a circumferential radius of curvature: ra is smaller than a radius of curvature of a front face of the ophthalmic lens, and the two side portions of the heart shape in the opening inside surface 228 of the cavity 224 have the radius of curvature in the circumferential direction greater than the radius of curvature of the front face of the ophthalmic lens; while a diameter dimension of an inscribed circle in the opening of the cavity is greater than the outside diameter dimension of the ophthalmic lens.

Abstract: A highly safe liquid preparation for contact lenses which contains 0.3 to 50 ppm of a polyamine having recurring units of the formula (I): wherein n is 0 or 1, and which has a high antibacterial effect even at low concentrations.

Abstract: It is intended to provide a method of selecting a contact lens suitable for a wearer and/or a care system therefor, by which the occurrence of problems (for example, worsening in the feel during wearing, lowering in the oxygen permeability of the lens, shortening in the lens life, lowering in the visual acuity, corneal injury, etc.) can be minimized to thereby ensure a high safety for the eye, namely, a method which comprises collecting the lacrimal fluid of a wearer, detecting the protein content and/or the lipid content in the lacrimal fluid thus obtained (Step S5), estimating the dirt adhesion characteristics of the wearer to a contact lens based on the protein content and/or lipid content thus detected, and then selecting a contact lens suitable for the wearer and/or a care system therefor from among a plurality of contact lenses and a plurality of care systems (Step S6).

Abstract: A photochromic contact lens having a period of time for discoloring the contact lens from a colored state to the uncolored state shortened, wherein the photochromic contact lens is made of an oxygen-permeable polymer material having a second-order transition point of not higher than 110° C., and formed to have an oxygen permeation coefficient of not less than 50, and wherein the contact lens contains a dye capable of exhibiting photochromism.

Abstract: An easy-to manufacture contact lens exhibiting an excellent axial stability and having a novel ballast mechanism. On the front surface (36) of the contact lens (30), (i) a circular front surface (38) forming an optical portion (44) and (ii) annular front surfaces (40, 42) forming peripheral portions (46, 48) are formed with a substantially constant radial dimension around the geometrical center axis (32) of the lens in the front view thereof. Cross-sectional shapes of the front surfaces (40, 42) at the peripheral parts are varied in the circumferential direction and the thickness at the peripheral portions (46, 48) is varied in the circumferential direction, thus shifting the center of gravity G of the contact lens (30) from the geometrical center axis (32) of the lens.

Abstract: A liquid preparation for a contact lens is provided, including at least one disinfectant selected from the group consisting of germicidal biguanides and germicidal quaternary ammonium salts (Component A), glycolic acid and/or asparatic acid (Component B), and 2-amino-2-methyl-1,3-propanediol or a salt thereof (Component C). Component B and Component C are provided in a sufficient amount to fulfill a predetermined molar ratio.

Abstract: A method of manufacturing a contact lens having a mark is provided, wherein the contact lens is provided with a mark at the same time as the polymerization of the contact lens in the mold. The coloring composition, for the mark includes a medium which includes at least one monomer component of the monomer mixture used to form the polymer of the contact lens; and a predetermined dyestuff. A concave molding surface is roughened by forming a multiplicity of minute recesses by sputtering to define a marker portion, and the coloring composition is attached to the roughened concave molding surface. The coloring composition is then prepolymerized in the marker position before the monomer mixture of the contact lens material is introduced into and polymerized in the mold.

Abstract: It is an object of the present invention to provide a process for decomposing vegetable waste materials easily, which solves problems such as the problem of treatment costs, the problem of energy, an environmental problem and the problem of time for treatment which are difficult to be solved by prior art. The present invention provides an agent for decomposing plant fibrous materials, which contains plant fibrous materials decomposing enzymes derived from a microorganism, but not the microorganism. In addition, the present invention provides a process for treating vegetable waste materials comprising allowing the agent for decomposing plant fibrous materials to act on vegetable waste materials.

Abstract: It is an object of the invention to ensure in a series of contact lenses composed of an assorted plurality of contact lenses having mutually different optical characteristics such as refractive power or the like that each contact lens is capable of exhibiting advantageously and consistently a good wear comfort and tear fluid exchange. In order to attain the object, the present invention arranges each contact lens 10a, 10b, 10c making up the series contact lens designed and having mutually different optical characteristics in the optical zone, such that not only is a shape of the lens back surface 14 of the optical zone 28 identified, but a shape of the peripheral zone 30 is identified at least the outer peripheral zone 44 that contributes to wear comfort and tear fluid exchange.

Abstract: It is an object of the present invention to provide a coloration, which does not damage a contact lens and is not discolored, and to provide an improved technique of manufacturing a contact lens, wherein the contact lens can be marked at the same time as the polymerization of the contact lens in the mold, without troublesome processes. In the present invention, there is adopted, as a coloring composition, a medium which comprises: at least one of monomer components, which constitutes a monomer composition to provide a polymer to form the contact lens; and a predetermined dyestuff. A concave molding surface (28) is roughened by forming a multiplicity of minute recesses by sputtering, before attaching the coloring composition to the concave molding surface; and coloring composition attached to the concave surface (28) is prepolymerized, before the introduction of the monomer mixture to the concave molding surface.

Abstract: To provide a liquid preparation for contact lens wherein: the liquid preparation for contact lens assures an excellent disinfecting effect and a sufficiently high degree of safety to the eyes of the lens wearer; the liquid preparation for contact lens does not adversely affect the contact lens, such as a change of the size of the contact lens; and the liquid preparation for contact lens advantageously restrains a generation of deposits on the lens. The liquid preparation for contact lens is prepared, so as to comprise: at least one disinfectant selected from the group consisting of germicidal biguanides and germicidal quaternary ammonium salts (component A); glycolic acid and/or asparatic acid (component B); and 2-amino-2-methyl-1,3-propanediol or a salt thereof (component C), wherein the component B and the component C fulfill a predetermined molar ratio.

Abstract: A method of obtaining particulars or characteristics of an ophthalmic lens by detecting a fluorescent light which is emitted from the ophthalmic lens upon exposure to an excitation light (UV light). The particulars or characteristics of the ophthalmic lens include, for instance, identifying marks such as characters, figures, symbols, etc. which are formed in the ophthalmic lens to identify the ophthalmic lens, a thickness of the ophthalmic lens such as a contact lens and an intraocular lens, and an angular position of the ophthalmic lens, particularly of a special contact lens having circumferential portions having respective different thickness values.

Abstract: It is an object of the present invention to provide an ophthalmic lens characterized in that it is capable of developing a color at a position where a light is irradiated, and to provide a marking method of the ophthalmic lens. It is another object of the present invention to provide an ophthalmic lens, which can form a clear and easily readable mark, without causing problems such as discoloration of the mark, caused by cleaning of the lens by rubbing, or deterioration of the mechanical strength of the lens, and to provide a marking method of the ophthalmic lens. The ophthalmic lens of the present invention is obtained by a polymerization of a polymerizable composition of monomers, which contains an alkyl (meth)acrylate as an essential polymerizable component, and this polymerization is carried out while the rhodamine derivative is present in the composition.

Abstract: An ocular lens material comprising a copolymer prepared by polymerization with heating of a monomer mixture and/or with irradiating a monomer mixture with ultraviolet ray by means of a molding method, the monomer mixture containing a polysiloxane macromonomer A, a Si-containing alkyl methacrylate B, a hydrophilic monomer C comprising NVP as C-1 and another hydrophilic monomer C-2, another monomer D and a crosslinkable monomer E comprising a crosslinkable monomer E-1 containing at least one group selected from acryloyl group, vinyl group and allyl group, and methacryloyl group, and a crosslinkable monomer E-2 containing at least two methacryloyl groups as main components, wherein (A+B)/C (weight ratio) is 30/70 to 70/30, A/B is 25/75 to 75/25, C-1/C-2 is 50/50 to 100/0, the amount of D is 0 to 20% by weight in the monomer mixture, which has high oxygen permeability, high mechanical strength, excellent surface wettability and low surface frictional property.