Abstract: An orthokeratology lens designating system 10 includes a selecting device 20, a database server 30, a lens designating server 50 and a terminal device 70. The selecting device 20 includes a device 22 for acquiring movement data of an orthokeratology lens moving on a cornea with the orthokeratology lens mounted on the cornea, and an assessing device 28 for assessing, on the basis of the lens movement data, that the orthokeratology lens is a registered lens that can be used for a patient. Registered lens correction D data of the registered lens, registered patient data including registered cornea D data of a cornea, and registration stage data that indicates in which stage of a plurality of correction stages, the lens is to be mounted on the cornea, are output to the database server 30. The database server 30 is configured to accept and store these pieces of data to build a database.

Abstract: A selecting device, database server, lens designating server, and terminal device. Selecting device includes device for acquiring movement data of orthokeratology lens mounted on and moving on cornea, and assessing device which uses lens movement data to determine which orthokeratology lens is appropriate for patient. Correction data of the lens, patient data including data of cornea, and data that indicates which stage of a plurality of correction stages the lens is to be mounted on cornea, are output to server to build a database. Terminal device includes patient data acquiring device and patient stage data accepting means, and is capable of transmitting patient data and patient stage data to lens designating server configured to retrieve from database a lens having data that are the same, as or close to, the received patient data and patient stage data, and to designate retrieved lens as orthokeratology lens to be used for patient.

Abstract: A contact lens for corrective corneal crosslinking has a lens part and reservoir part. The lens part is constituted of a UV transmitting material, and provided, on a side thereof being in contact with the cornea of a patient's eyeball, with a pressing region configured to project in a convexly curved shape at a position for pressing the corneal dome center, and a relief region including an annular concave part whose cross section has a concavely circular arc shape that surrounds the pressing region's outer circumference. The reservoir part is disposed seamlessly and integrally therewith on the lens' outer side in a thickness direction in the pressing region, the reservoir part is provided with a communication hole for communication between the inside of the reservoir part and the pressing region, and a working electrode that has the same polarity as that of the riboflavin solution in the reservoir part.

Abstract: In a contact lens for corrected-cornea crosslinking, a relief region constituted by a concave portion and a pressing region constituted by a convex portion are formed on a side of the lens in contact with a cornea of a patient. When these regions are pressed to the cornea to change a shape thereof, and a curvature of the concave curved-surface to be formed on the cornea is defined as R0 and a curvature of the convex curved-surface of the pressing region is defined as Rs, Rs is set, for example for correcting myopia, to satisfy Rs=R0+5.0 D to R0+10.0 D. When the contact lens having such a configuration is used for correcting the cornea and fixing the corrected state by crosslinking, the shape of the cornea can be accurately formed.

Abstract: A contact lens for corrective corneal crosslinking has a lens part and reservoir part. The lens part is constituted of a UV transmitting material, and provided, on a side thereof being in contact with the cornea of a patient's eyeball, with a pressing region configured to project in a convexly curved shape at a position for pressing the corneal dome center, and a relief region including an annular concave part whose cross section has a concavely circular arc shape that surrounds the pressing region's outer circumference. The reservoir part is disposed seamlessly and integrally therewith on the lens' outer side in a thickness direction in the pressing region, the reservoir part is provided with a communication hole for communication between the inside of the reservoir part and the pressing region, and a working electrode that has the same polarity as that of the riboflavin solution in the reservoir part.

Abstract: A contact lens for cornea-correction crosslinking made of an ultraviolet transmitting material includes, on a cornea contact side, a pressing region projecting in a convex curved-surface shape at a position corresponding to the center of a corneal dome to be pressed and a relief region constituted by an annular concave portion in a circular arc shape, encircling the outer periphery of the pressing region. The contact lens corrects at least naked eye vision or keratoconus cornea by pressing both regions to the cornea and changing its shape. The contact lens includes a reservoir portion outside the pressing region in a lens thickness direction for a riboflavin solution, a communication hole communicating the reservoir portion inside with the pressing region, and an operation-side electrode having the same polarity as that of the riboflavin solution. The mounted contact lens allows riboflavin solution infiltration into corneal tissue by iontophoresis and ultra-violet ray irradiation.

Abstract: In a contact lens for corrected-cornea crosslinking, a relief region constituted by a concave portion and a pressing region constituted by a convex portion are formed on a side of the lens in contact with a cornea of a patient. When these regions are pressed to the cornea to change a shape thereof, and a curvature of the concave curved-surface to be formed on the cornea is defined as R0 and a curvature of the convex curved-surface of the pressing region is defined as Rs, Rs is set, for example for correcting myopia, to satisfy Rs=R0+5.0D to R0+10.0D. When the contact lens having such a configuration is used for correcting the cornea and fixing the corrected state by crosslinking, the shape of the cornea can be accurately formed.

Abstract: A contact lens for cornea-correction crosslinking made of an ultraviolet transmitting material includes, on a cornea contact side, a pressing region projecting in a convex curved-surface shape at a position corresponding to the center of a corneal dome to be pressed and a relief region constituted by an annular concave portion in a circular arc shape, encircling the outer periphery of the pressing region. The contact lens corrects at least naked eye vision or keratoconus cornea by pressing both regions to the cornea and changing its shape. The contact lens includes a reservoir portion outside the pressing region in a lens thickness direction for a riboflavin solution, a communication hole communicating the reservoir portion inside with the pressing region, and an operation-side electrode having the same polarity as that of the riboflavin solution. The mounted contact lens allows riboflavin solution infiltration into corneal tissue by iontophoresis and ultra-violet ray irradiation.

Abstract: The present invention provides a myopia and/or astigmatism-correcting contact lens for correcting myopia and/or astigmatism based on the alteration in the shape of a patient's cornea. The myopia and/or astigmatism-correcting contact lens comprises a pressure zone having a first surface defined by the inner surface of the contact lens located on the side of the patient's cornea and positioned at the center of the contact lens. The first surface is formed in a concave shape having a curvature less than that of the central surface of the patient's cornea. The contact lens further includes a relief zone having a concave-shaped second surface defined by the inner surface of the contact lens located on the side of the patient's cornea and positioned at the periphery of the pressure zone, and an anchor zone having a concave-shaped third surface defined by the inner surface of the contact lens on the side of the patient's cornea and positioned at the periphery of the relief zone.

Abstract: The present invention provides a myopia and/or astigmatism-correcting contact lens for correcting myopia and/or astigmatism based on the alteration in the shape of a patient's cornea. The myopia and/or astigmatism-correcting contact lens comprises a pressure zone having a first surface defined by the inner surface of the contact lens located on the side of the patient's cornea and positioned at the center of the contact lens. The first surface is formed in a concave shape having a curvature less than that of the central surface of the patient's cornea. The contact lens further includes a relief zone having a concave-shaped second surface defined by the inner surface of the contact lens located on the side of the patient's cornea and positioned at the periphery of the pressure zone, and an anchor zone having a concave-shaped third surface defined by the inner surface of the contact lens on the side of the patient's cornea and positioned at the periphery of the relief zone.

Abstract: The present invention provides a myopia and/or astigmatism-correcting contact lens for correcting myopia and/or astigmatism based on the alteration in the shape of a patient's cornea. The myopia and/or astigmatism-correcting contact lens comprises a pressure zone having a first surface defined by the inner surface of the contact lens located on the side of the patient's cornea and positioned at the center of the contact lens. The first surface is formed in a concave shape having a curvature less than that of the central surface of the patient's cornea. The contact lens further includes a relief zone having a concave-shaped second surface defined by the inner surface of the contact lens located on the side of the patient's cornea and positioned at the periphery of the pressure zone, and an anchor zone having a concave-shaped third surface defined by the inner surface of the contact lens on the side of the patient's cornea and positioned at the periphery of the relief zone.