摘要:
A corneal implant (50,60) comprising a body having a protruding center optic (52,62) at least partially surrounded by a rim (54,64), said body composed of a material having a tensile strength in the range from 0.1 MPa to 4 MPa and a modulus in the range from 0.1 MPa to 5 MPa, wherein center optic (52) can extend anteriorly from the rim (54) or the center optic (62) can additionally extend posteriorly from the implant.
摘要:
A mask is provided that is configured to increase the depth of focus 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 portion surrounding at least a portion of the aperture. The portion may be configured to be substantially opaque to visible electromagnetic radiation and be substantially transparent to electromagnetic radiation transmitted from an ocular examination device (e.g., substantially transparent to at least some non-visible electromagnetic radiation with a wavelength between about 750 nm and about 1500 nm).
摘要:
Methods of designing corneal implants, such as inlays, to compensate for a corneal response, such as epithelial remodeling of the epithelial layer, to the presence of the implant. Additionally, methods of performing alternative corneal vision correction procedures to compensate for an epithelial response to the procedure. Methods of compensating for a corneal response when performing a vision correction procedure to create a center near region of the cornea for near vision while providing distance vision peripheral to the central near zone.
摘要:
A conformable covering comprises an outer portion with rigidity to resist movement on the cornea and an inner portion to contact the cornea and provide an environment for epithelial regeneration. The inner portion of the covering can be configured in many ways so as to conform at least partially to an ablated stromal surface so as to correct vision. The conformable inner portion may have at least some rigidity so as to smooth the epithelium such that the epithelium regenerates rapidly and is guided with the covering so as to form a smooth layer for vision. The inner portion may comprise an amount of rigidity within a range from about 1×10−4 Pa*m3 to about 5×10−4 Pa*m3 so as to deflect and conform at least partially to the ablated cornea and smooth an inner portion of the ablation with an amount of pressure when deflected.
摘要:
Contact lenses incorporate high plus or add power profiles that at least one of slow, retard or preventing myopia progression and minimize halo effect. The lens includes a center zone with a negative power for myopic vision correction; and at least one treatment zone surrounding the center zone, the at least one treatment zone having a power profile that increases from an outer margin of the center zone to a positive power within the at least one treatment zone of greater than +5.00D.
摘要:
The present invention refers to a device and a kit for the shipment and preservation of corneal lenticules ready for use in a lamellar keratoplasty surgery. The device (1) comprises a first open portion (2), apt to receive and contain the lenticule, and a fenestrated lid (10) to close said first portion. The device further comprises a second portion (3) of substantially tubular shape with a diameter lower than the diameter of the lenticule. The device may further comprise a third portion (7) apt to be reversibly connected to a grip means. The fenestrated lid and the front opening (5) allow preservation fluid to nourish the lenticule tissue during the preservation and/ or the shipment. The present invention also refers to a method for preserving, shipping and prearranging the lenticules so as to facilitate posterior lamellar keratoplasty surgery (or endokeratoplasty).