Provided is a color contact lens including a hydrogel and a micro-pattern in which a plurality of photonic crystal structures included in the hydrogel are dispersed. The color contact lens is capable of realizing colors without using a coloring agent. Also, the color contact lens according to the present invention has advantages in that no color distortion or change occurs even when the contact lens is swollen.

Disclosed is a medical device having an elastic modulus of 100 kPa or more and 2,000 kPa or less, a water content of 10% by mass or less, a tensile elongation of 50% or more and 3,000% or less, and a dynamic contact angle (advancing angle) relative to a borate buffer of 80 or less. The present invention can significantly reduce or avoid a phenomenon of adhesion to a surface when contacted with a surface outside or inside the body, which has hitherto been regarded as a problem in a conventional medical device.

A sclera or contact lens with an image of an eye that is fenestrated, or uniformly speckled with many sub-millimeter sized transparent regions or holes, is disclosed. The micro fenestrated contact lens can be worn on a strabismic, or misaligned, eye so that its image is aligned with the wearer's dominant eye. The fenestrations allow the wearer to see through the opaque or translucent image printed on the contact lens, thus allowing binocular vision even though his or her strabismic eye is covered.

Implantable corneal and intraocular implants such as a mask are provided. The mask can improve the vision of a patient, such as by being configured to increase the depth of focus of an eye of a patient. The mask can include an aperture configured to transmit along an optical axis substantially all visible incident light. The mask can further include a transition portion that surrounds at least a portion of the aperture. This portion can be configured to switch from one level of opacity to another level of opacity through the use of a controllably variable absorbance feature such as a switchable photochromic chromophore within a polymer matrix.

An ophthalmic lens, including: an optical portion having: a near portion with a near dioptric power for viewing near distance; and a distance portion with a distance dioptric for viewing a distance further than the near distance; with the near portion or the distance portion being centrally disposed, wherein a portion that is not centrally disposed is annularly disposed at an outer edge of the near portion or the distance portion, the near portion or the distance portion centrally disposed in the optical portion having a portion A in which power is intensified and then weakened when viewed in X direction from a center to a periphery, and having a portion A in which power is intensified and then weakened when viewed in X direction from the center to the periphery, which is an opposite direction to the X direction, and also included is a related technique thereof.

The present specification provides a functional contact lens including: a lens substrate having a spherically curved surface so as to be worn on an eyeball; and a functional layer provided on at least one surface of the lens substrate and including a graphene sheet, and a method for manufacturing the same.

Method and contact lens (3) for measuring a subject's three dimensional eye movement including torsional movement. A video camera (1) is provided for recording an image of the subject's eye (2). The contact lens (3) is provided for placement over the subject's eye (2). The contact lens (3) comprises one or more markers (3a,3b) that are detectable by the video camera (1) and are positioned at a lateral offset (D) with respect to a central part (3p) of the contact lens (3). The one or more markers (3a,3b) are configured for detecting torsional rotation (R) of the subject's eye (2) around a line of sight axis (C) of the subject's eye (2) by using the video camera (1) to track a position of the one or more markers (3a,3b).

Provided is a colored contact lens having: a lens; and a colored region formed in the lens, at least a part of the colored region is arranged at a position overlapping an iris of a wearer when the colored contact lens is worn, and the colored region has infrared transparency.

One embodiment of a contact lens includes a lens body configured to fit directly on the surface of the eye and legible characters positioned on the lens body. Another embodiment of a contact lens comprises a lens body including polymeric material and a lens enhancing material (e.g., ink, silicone material, medicament material, and the like) encapsulated in the polymeric material. The lens enhancing material can be in the form of isolated sections distributed in the surrounding polymeric material. Methods of making contact lenses include forming a first lens layer including a first surface, forming a pattern on the first surface, and forming a second lens layer over the pattern.

Designs, apparatus and methods to form contact lenses with aesthetic elements on demand are described. In some examples, the method of defining the aesthetic aspect includes printing patterns. Other examples include photochromic or thermochromic elements which may provide patterning on exposure to electromagnetic irradiation. In some further examples, energized components in contact lenses may provide aesthetic characteristics.