Abstract:
An eye-implantable device including an eiectrowetting lens is provided that can be operated to control an overall optical power of an eye in which the device is implanted, A lens chamber of the eiectrowetting lens contains first and second fluids that are immiscible with each other and that differ with respect to refractive index. By applying a voltage to electrodes of the lens, the optical power of the lens can be controlled by affecting the geometry of the interface between the fluids. One of the fluids is an aqueous fluid that is isotonic relative to the aqueous humor of the eye to prevent flux of water into or out of the lens chamber. Tims, the lens chamber may be composed of water-permeable materials. Such water-permeable materials may be flexible, to permit the lens to be folded into a smaller profile during implantation.
Abstract:
An open, seal-less intraocular lens is disclosed herein. An example intraocular lens may include an annular substrate (102) including an oil electrode (104) disposed in or on an inner sidewall of the annular substrate to electrostatically manipulate a volume of electrowetting oil, an optical window (106) coupled to the substrate, where a side of the optical window adjacent to the inner sidewall and the inner sidewall of the annular substrate define a region for constraining the volume of electrowetting oil, and a saline electrode (116) coupled to the annular substrate, the saline electrode positionable within an aqueous humor of an eye upon implantation.
Abstract:
Embodiments disclosed herein are directed to intraocular lens systems includes at least one intraocular lens device and methods of using the same. The at least one intraocular lens device includes one or more photodetectors and an intraocular lens exhibiting a modifiable focal length. The one or more photodetectors are configured to detect light that is used to determine a presence of the object or the apparent object distance. The focal length of the intraocular lens can be modified depending on the determined presence of the object or the apparent object distance.
Abstract:
Embodiments disclosed herein are directed to intraocular lens systems having a plurality of materials therein, with at least some of the materials having a diffraction pattern therein and an electrically-modifiable index of refraction collectively configured to selectively alter the focal length of the intraocular lens system. Methods of modifying a focal length of an intraocular lens system are also disclosed.
Abstract:
This disclosure relates compositions comprising upconverting nanocrystals and photoactive compositions and methods using these compositions to modify treat myopia and other ocular conditions. In some cases, the methods use near infrared irradiation to adjust the refractive power of light adjustable ocular lenses. Other methods improve the mechanical strength of the sclera directly.
Abstract:
The present invention relates in one aspect to improving the performance of an ophthalmic lens for the eye by creating a progressive optical system wherein the lens is made of different materials having different optical refractive indeces (RI), in another aspect use of refractive indeces to form esthetical Intacs.
Abstract:
A system/method allowing hydrophilicity alteration of a polymeric material (PM) is disclosed. The PM hydrophilicity alteration changes the PM characteristics by decreasing the PM refractive index, increasing the PM electrical conductivity, and increasing the PM weight. The system/method incorporates a laser radiation source that generates tightly focused laser pulses within a three- dimensional portion of the PM to affect these changes in PM properties. The system/method may be applied to the formation of customized intraocular lenses comprising material (PLM) wherein the lens created using the system/method is surgically positioned within the eye of the patient. The implanted lens refractive index may then be optionally altered in situ with laser pulses to change the optical properties of the implanted lens and thus achieve optimal corrected patient vision. This system/method permits numerous in situ modifications of an implanted lens as the patient's vision changes with age.
Abstract:
According to a first aspect, the invention relates to an intraocular variable focus implant comprising a non-conducting liquid with a melting temperature above 0° C, a conducting liquid, a liquid interface formed by the non-conducting and conducting liquids, a first electrode in contact with the conducting liquid, a second electrode insulated from the conducting liquid, wherein the liquid interface is movable by electro wetting according to a change in a voltage applied between the first and second electrodes.
Abstract:
The present invention relates generally to an arcuate liquid meniscus lens with a meniscus wall. Some specific embodiments include a liquid meniscus lens with a meniscus wall essentially in the shape of a conical frustum, a cross section of which is non-spherical. Embodiments may also include a lens of suitable size and shape for inclusion in a contact lens.
Abstract:
The present invention relates generally to a liquid meniscus lens with a meniscus wall. Some specific embodiments include a liquid meniscus lens with a meniscus wall essentially in the shape of a conical frustum with at least a portion of the conical frustum convex toward the optical axis. Embodiments may also include a lens of suitable size and shape for inclusion in a contact lens.