Abstract:
A method of treating glaucoma in an eye by managing fluid flow past an implanted shunt having an elastomeric plate and a non-valved elastomeric drainage tube. The plate is positioned over a sclera of the eye with an outflow end of the elastomeric drainage tube open to an outer face of the plate. An inflow end of the drainage tube tunnels through the sclera to the anterior chamber of the eye. The plate may have regions of greater propensity for cell adhesion alternating with regions of lesser cell adhesion. For example, regions of texturing around the plate or drainage tube may be provided to control the size of a bleb that forms over the implant. The effective surface area of the plate may be balanced against a number of fenestrations. The drainage tube has a reduced profile and may be shaped with a non-circular external cross-section to reduce its height. A scleral groove may be used to further reduce the height of the drainage tube on the sclera. A flow restrictor for the early post operative period will immediately lower the intraocular pressure (IOP) and simultanously prevent hypotony.
Abstract:
An intraocular lens for providing enhanced vision includes an optic with a clear aperture over which light may be focused onto or near the retina of an eye. The optic includes an anterior surface and an opposing posterior surface, the surfaces disposed about an optical axis. The optic includes a central zone and an outer zone disposed about the central zone. The central zone comprises a plurality of optical powers that progressively vary between a first optical power at a center of the central zone and a second optical power at a periphery of the central zone, wherein the absolute value of the difference between the first optical power and the second optical power being between predetermined values. The outer zone comprises a third optical power and may also have a negative spherical aberration. The optic typically has a variation in optical power over the entire clear aperture that is less than a predetermined amount.
Abstract:
Method for partially coating intraocular lenses by masking a portion of the lens, plasma treating, applying a coating to the lens and removing the masking.
Abstract:
Embodiments of this invention relate to the generation of wavefronts for measurements, diagnostics, and treatment planning for ophthalmic applications. In some embodiments, a wavefront generator generates light having a uniform wavefront, which is focusable on the retina of an emmetropic eye by the normal function of the emmetropic eye. In some embodiments, the wavefront generator can generate light having a custom wavefront which is not focusable on the retina of the emmetropic eye. In some embodiments, the wavefront generator can receive information relating to an optical aberration of the eye, generate a custom wavefront, and project light having this custom wavefront, which in combination with the optical aberration of the eye is focusable on the retina.
Abstract:
Embodiments of this invention relate to the generation of wavefronts for measurements, diagnostics, and treatment planning for ophthalmic applications. In some embodiments, a wavefront generator generates light having a uniform wavefront, which is focusable on the retina of an emmetropic eye by the normal function of the emmetropic eye. In some embodiments, the wavefront generator can generate light having a custom wavefront which is not focusable on the retina of the emmetropic eye. In some embodiments, the wavefront generator can receive information relating to an optical aberration of the eye, generate a custom wavefront, and project light having this custom wavefront, which in combination with the optical aberration of the eye is focusable on the retina.
Abstract:
An implantable glaucoma shunt (10) for treating glaucoma in an eye by managing fluid flow past an implanted shunt having an elastomeric plate (40) and a non-valved elastomeric drainage tube (46). The plate is positioned over a sclera of the eye with an outflow end (50) of the elastomeric drainage tube open to an outer face of the plate (42). An inflow (52) end of the drainage tube tunnels through the sclera to the anterior chamber of the eye. The plate may have regions of greater propensity for cell adhesion alternating with regions of lesser cell adhesion. For example, regions of texturing around the plate or drainage tube may be provided to control the size of a bleb that forms over the implant. The effective surface area of the plate may be balanced against a number of fenestrations (64). The drainage tube has a reduced profile and may be shaped with a non-circular external cross - section to reduce its height. A scleral groove may be used to further reduce the height of the drainage tube on the sclera. A flow restrictor for the early post operative period will immediately lower the intraocular pressure (IOP) and simultanously prevent hypotony.
Abstract:
An atmospheric pressure chemical vapor deposition apparatus has been developed for partially coating acrylic based intraocular lenses. In one embodiment intraocular lenses may be coated with a hydrophilic material comprising silicone dioxide and polyethylene glycol. In another embodiment the haptics may be coated with hydrophilic material, which aids in the post implantation unfolding of the lenses whiie not diminishing posterior bag adhesion of the hydrophobic surface of the untreated optic portion.
Abstract:
A method, system and apparatus for vision correction are disclosed. The method, system and apparatus include a toric intraocular element for correcting astigmatism and having a cylinder power, and a depth of focus extender coupled to the toric intraocular element, the depth of focus extender extending a depth of focus. The extended depth of focus may reduce sensitivity of the toric intraocular element to at least one of rotation and selected cylinder power.
Abstract:
A method, system and apparatus for vision correction are disclosed. The method, system and apparatus include a toric intraocular element for correcting astigmatism and having a cylinder power, and a depth of focus extender coupled to the toric intraocular element, the depth of focus extender extending a depth of focus. The extended depth of focus may reduce sensitivity of the toric intraocular element to at least one of rotation and selected cylinder power.
Abstract:
An implantable glaucoma shunt (10) for treating glaucoma in an eye by managing fluid flow past an implanted shunt having an elastomeric plate (40) and a non-valved elastomeric drainage tube (46). The plate is positioned over a sclera of the eye with an outflow end (50) of the elastomeric drainage tube open to an outer face of the plate (42). An inflow (52) end of the drainage tube tunnels through the sclera to the anterior chamber of the eye. The plate may have regions of greater propensity for cell adhesion alternating with regions of lesser cell adhesion. For example, regions of texturing around the plate or drainage tube may be provided to control the size of a bleb that forms over the implant. The effective surface area of the plate may be balanced against a number of fenestrations (64). The drainage tube has a reduced profile and may be shaped with a non-circular external cross - section to reduce its height. A scleral groove may be used to further reduce the height of the drainage tube on the sclera. A flow restrictor for the early post operative period will immediately lower the intraocular pressure (IOP) and simultanously prevent hypotony.