Patent application number | Description | Published |
20090157061 | METHOD FOR INTRASTROMAL REFRACTIVE SURGERY - A method for performing intrastromal ophthalmic laser surgery requires Laser Induced Optical Breakdown (LIOB) of stromal tissue without compromising Bowman's capsule (membrane). In detail, the method creates cuts in the stroma over all, or portions of, a plurality of concentric cylindrical surfaces (circular or oval). Importantly, these cuts are all centered on the visual axis of the patient's eye. In accordance with the present invention, cuts can be made either alone or in conjunction with the removal of predetermined volumes of stromal tissue. The actual location of cuts in the surgery will depend on whether the treatment is for presbyopia, myopia, hyperopia or astigmatism. | 06-18-2009 |
20090157063 | METHOD PATTERNS FOR INTRASTROMAL REFRACTIVE SURGERY - A method for performing intrastromal ophthalmic laser surgery requires Laser Induced Optical Breakdown (LIOB) of stromal tissue without compromising Bowman's capsule (membrane). In detail, the method creates cuts in the stroma along planes radiating from the visual axis of the eye. Importantly, these cuts are all distanced from the visual axis. The actual location and number of cuts in the surgery will depend on the degree of visual aberration being corrected. Further, the method may include the additional step of creating cylindrical cuts in the stroma. The radial cuts and cylindrical cuts may be intersecting or non-intersecting depending on the visual aberration being treated. | 06-18-2009 |
20090187171 | COMPUTER CONTROL FOR BIO-MECHANICAL ALTERATION OF THE CORNEA - A system and method for altering the shape of a lamina of transparent material (e.g. the cornea of an eye), as it is being subjected to a transverse pressure differential, requires a computer controlled laser unit. In accordance with specified input parameters, the computer directs the laser unit to perform LIOB over predetermined surfaces within the lamina. This weakens the material for a desired reshaping of the lamina in response to the pressure differential. With respect to a perpendicular axis that is defined by the lamina, surfaces parallel to the axis (e.g. cylindrical surfaces) are separated from each other by about two hundred microns. For surfaces perpendicular to the axis, the separation is about ten microns. In each instance, the cuts that result from LIOB are only about two microns thick. | 07-23-2009 |
20090187172 | METHOD FOR HARVESTING CORNEAL DONOR PLUGS FOR USE IN KERATOPHAKIA PROCEDURES - A method for harvesting a plurality of corneal donor plugs for use in keratophakia procedures requires the determination of a perimeter for the plurality of plugs. Further, the method involves the selection of posterior and anterior boundaries for the plurality of donor plugs. In the method, interfaces between adjacent donor plugs are identified. Thereafter, a pulse laser beam is directed along the perimeter, the boundaries and the interfaces to establish the plurality of plugs. After the plugs are removed from the donor cornea, individual plugs are mechanically separated from one another. | 07-23-2009 |
20090187386 | FINITE ELEMENT MODELING OF THE CORNEA - A system and method for simulating a corneal reconfiguration in response to LIOB uses a computer-programmed, finite element model. The model has a plurality of elements; with each element pre-programmed with coefficients based on diagnostic corneal data. Collectively the coefficients replicate biomechanical properties of the cornea. In use, designated biomechanical characteristics on a plurality of selected elements (i.e. selected coefficients) are minimized to simulate LIOB in an actual cornea. A computer then measures the resultant reconfiguration of the cornea model to assess an actual cornea's response to LIOB. | 07-23-2009 |
20090187387 | SYSTEM AND METHOD FOR SIMULATING AN LIOB PROTOCOL TO ESTABLISH A TREATMENT PLAN FOR A PATIENT - A system and method are provided for simulating a Laser Induced Optical Breakdown (LIOB) protocol to establish a surgical LIOB treatment for a patient. In the system, a library of finite element models characterizing various visual defects in corneas are programmed into a computer. Further, a library of nomograms indicating specific LIOB protocols for correcting respective visual defects are programmed into the computer. As a result, a model and a corresponding nomogram may be selected in view of a patient's diagnostic information. Further, the selected model may be individualized with the diagnostic information to more precisely characterize the patient's visual defects. Thereafter, the computer simulates the indicated LIOB protocol on the individualized model in order to achieve a desired corneal configuration. When the desired corneal configuration is achieved, the final treatment plan may be determined. | 07-23-2009 |
20090262360 | SYSTEM AND METHOD FOR HIGH RESOLUTION IMAGING OF CELLULAR DETAIL IN THE RETINA - A system and method for imaging tissue cells at a predetermined depth in the retina of an eye include components that provide for compensation of refractive errors. Specifically, the system basically includes three subassemblies that operate in concert with each other. There is a first subassembly for directing a first light beam into the eye to measure anterior optical aberrations. There is also a second subassembly for directing a second light beam through retinal tissue to a predetermined depth where the tissue cells are located. This second light beam is used to measure phase aberrations introduced by the retinal tissue. And, there is a third subassembly for directing a third light beam to the tissue cell to produce an image of the tissue cell. In the third light beam, the anterior optical aberrations and the phase aberrations have been substantially removed to provide a clearer image of the tissue cell. | 10-22-2009 |
20090264873 | SYSTEM AND METHOD FOR ALTERING INTERNAL STRESS DISTRIBUTIONS TO RESHAPE A MATERIAL - A system and method for altering the configuration of a transparent material (e.g. the cornea of an eye) requires identifying local stress distribution patterns inside the material. These patterns are then used to define boundary (interface) surfaces between volumes within the material. In operation, a laser unit performs Laser Induced Optical Breakdown (LIOB) along selected boundary surfaces to disrupt stress distribution patterns between volumes of the material that are separated from each other by the boundary surface. This LIOB allows an externally applied force to thereby alter the configuration of the material. | 10-22-2009 |
20090299345 | SYSTEM AND METHOD FOR RESHAPING A CORNEA USING A COMBINATION OF LIOB AND STRUCTURAL CHANGE PROCEDURES - A system and method for reshaping and altering the cornea of an eye employs a laser beam for two different purposes. For one, the laser beam is configured to perform Laser Induced Optical Breakdown (LIOB) on selected tissue in the stroma of the cornea. This generally weakens the stromal tissue and allows intraocular pressure and bio-mechanical forces in the eye to reshape the cornea. For the other, the laser beam is configured to cause Permanent Structural Change (PSC) on selected tissue in the stroma of the cornea. This alters the tissue density of the selected PSC stromal tissue to change its refractive index. In combination, the LIOB and PSC provide for corrected vision. | 12-03-2009 |
20090299346 | SYSTEM AND METHOD FOR STRAY LIGHT COMPENSATION OF CORNEAL CUTS - A system and method to compensate for the deformation of an eye requires calculation of an induced deformation angle Ψ, wherein the deformation is intentionally induced during laser surgery by a contact lens, and a refraction angle φ. Specifically, during laser surgery, the cornea of an eye is typically stabilized by a contact lens. This deforms the cornea. When the contact lens is removed after the surgery, the cornea recovers from the deformation. For the present invention, the angle Ψ is calculated, and corrected by the angle φ, so that surfaces altered during surgery (e.g. by LIOB) will become substantially parallel to incoming light in the eye, after the contact lens has been removed after surgery. | 12-03-2009 |
20090318907 | GENERALIZED MODELING OF THE CORNEA - A system and method for simulating a corneal reconfiguration in response to laser surgery uses a computer-programmed, biomechanical generalized model. The generalized model has a plurality of elements; with each element being pre-programmed based on diagnostic corneal data obtained from images of respective individual collagen fibers in a cornea. Collectively these pre-programmed elements replicate biomechanical properties of the cornea. In use, designated biomechanical characteristics on a plurality of selected elements are minimized to simulate laser surgery in an actual cornea. A computer then measures the resultant reconfiguration of the cornea model to assess an actual cornea's response to laser surgery. | 12-24-2009 |
20100053552 | CUSTOM PHASE PLATE - A custom phase plate for a light beam of wavelength “λ” includes a sheet of plastic material having a base refractive index “n | 03-04-2010 |
20100060853 | SYSTEM AND METHOD FOR IMAGING RETINAL TISSUE WITH TISSUE GENERATED LIGHT - A system and method for imaging retinal tissues in an eye generates an input light beam having ultra-short pulses and an input wavelength (λ | 03-11-2010 |
20100060854 | FINITE ELEMENT MODEL OF A KERATOCONIC CORNEA - A system and method for diagnosing the onset of keratoconus in a cornea requires subjecting the cornea of an eye to a pressure that changes its shape. A topography of the cornea's anterior surface (possibly, the posterior surface also) is mapped. The mapped topography is then fitted on a mathematical model of the cornea. Measurements corresponding to biomechanical parameters in the cornea are then taken from the model. Next, a computer is used to evaluate the biomechanical parameters to diagnose whether the cornea is keratoconic. | 03-11-2010 |
20100103372 | LASER CONTROL WITH PHASE PLATE FEEDBACK - An ophthalmic imaging system includes a light source, focusing optics, compensating optics, and a computer that coordinates both of the optics to optimize the Diffraction Limited Point Spread Function (DL-PSF) of the imaging light beam. In detail, the compensating optics includes a customized phase plate that provides substantially complete compensation for static aberrations introduced by an eye into the imaging light beam. Further, the computer measures an operational error signal that results from dynamic aberrations. The computer then uses the error signal to control the compensating optics and thereby optimize the DL-PSF by compensating for both static and dynamic aberrations. For an alternate embodiment, an active mirror can be included in the compensating optics to provide additional compensation for the dynamic aberrations. | 04-29-2010 |
20100174274 | MINIMIZING THE SIDE-EFFECTS OF REFRACTIVE CORRECTIONS USING STATISTICALLY DETERMINED IRREGULARITIES IN INTRASTROMAL INCISIONS - A system and method for minimizing adverse visual effects that may be introduced during laser refractive surgery, requires making laser incisions into stromal tissue in a predetermined manner. Specifically, a plurality of irregular incisions are statistically distributed in the stroma in a manner that causes them to be visually elusive, and thereby minimize their adverse visual effects. The incisions must, however, still accomplish their intended surgical purpose of weakening the stroma in a predetermined manner. To do this, each irregular incision has a width of arc length dθ | 07-08-2010 |
20100191227 | System and Method for Correcting Higher Order Aberrations with Changes in Intrastromal Biomechanical Stress Distributions - A method for correcting higher order aberrations in an eye requires Laser Induced Optical Breakdown (LIOB) of stromal tissue. In detail, the method identifies at least one volume of stromal tissue in the eye, with each volume defining a central axis parallel to the visual axis of the eye. Thereafter, a pulsed laser beam is focused to a focal spot in each volume of stromal tissue to cause LIOB of stromal tissue at the focal spot. Further, the focal spot is moved through the volume of stromal tissue to create a plurality of incisions centered about the respective central axis of the volume. As a result, a predetermined selective weakening of the stroma is caused for correction of the higher order aberration. | 07-29-2010 |
20100191228 | System and Method for Refractive Surgery with Augmentation by Intrastromal Corrective Procedures - A system and method are provided for an ophthalmic surgical procedure to provide a refractive correction for an eye. Specifically, the procedure is indicated when the desired refractive correction “d | 07-29-2010 |
20100191229 | Methods for Employing Intrastromal Corrections in Combination with Surface Refractive Surgery to Correct Myopic/Hyperopic Presbyopia - A system and method for correcting a vision defect (i.e. presbyopia) of a patient requires two laser units. A first laser unit is used to photoablate (i.e. remove) tissue from the cornea for the creation of a multi-focal cornea that simultaneously provides for both near and distance vision capabilities. A second laser unit can also be used to refine the shape of the cornea by weakening selected portions with LIOB. Together, the removal and weakening of corneal tissue are regulated to optimize the resultant near vision and distant vision capabilities of the patient. | 07-29-2010 |
20100217247 | System and Methods for Minimizing Higher Order Aberrations Introduced During Refractive Surgery - A system and method are provided for minimizing the adverse effects of any optical aberrations, and particularly higher order aberrations, that may be introduced into an eye during the correction of a visual defect by photoablation (i.e. removal) of corneal tissue. In accordance with the present invention, after a predetermined time interval following the photoablation of tissue (e.g. about two weeks), the eye is evaluated for aberrations. Laser Induced Optical Breakdown (LIOB) is then performed on intrastromal tissue, as needed, to correct for the introduced aberrations. | 08-26-2010 |
20100225014 | SYSTEM FOR CHARACTERIZING A CORNEA AND OBTAINING AN OPTHALMIC LENS - A system for determining the shape of a cornea of an eye illuminates at least one of the interior surface, the posterior surface, and the interior region of the eye with infrared light of a wavelength that can generate fluorescent light from the portion of the cornea illuminated. The generated fluorescent light is then detected. A step of illuminating can comprise focusing the infrared light in a plurality of different planes substantially perpendicular to the optical axis of the eye. From the detected light it is possible to create a map of at least a portion of the interior surface, at least a portion of the posterior surface, and/or portion of the interior region of the cornea. Clarity of vision can be determined by generating autofluorescence from proteins in the pigment epithelial cells of the retina. | 09-09-2010 |
20100228114 | System and Method for Assessing Risk of Glaucoma Onset - A system and method for predicting the onset of glaucoma uses a Finite Element Model (FEM) to obtain a response profile of the Optical Nerve Head (ONH) inside an eye. To do this, the FEM is programmed with data from first and second images of the ONH that are respectively taken at the beginning and the end of an imposed pressure differential (e.g. over a range of about 8 kPa). The FEM is then subjected to a sequence of pressure increments and the resultant profile is compared with empirical data to predict an onset of glaucoma. | 09-09-2010 |
20100228345 | SYSTEM FOR FORMING AND MODIFYING LENSES AND LENSES FORMED THEREBY - A lens for placement in a human eye, such as intraocular lens, has at least some of its optical properties formed with a laser. The laser forms modified loci in the lens when the modified loci have a different refractive index than the refractive index of the material before modification. Different patterns of modified loci can provide selected dioptic power, toric adjustment, and/or aspheric adjustment provided. Preferably both the anterior and posterior surfaces of the lens are planar for ease of placement in the human eye. | 09-09-2010 |
20100249761 | SYSTEM AND METHOD FOR ALTERING THE OPTICAL PROPERTIES OF A MATERIAL - A system for changing the configuration of a transparent, resilient material, for the purpose of altering its optical properties, requires obtaining a topology for the material. The obtained data is then used to create a computer program for operating a laser unit. In accordance with the program, the laser unit creates incisions within a defined operational volume, inside the material, to weaken the material (i.e. change its internal stress distributions). Specifically, the incisions are made on predetermined surfaces (e.g. cylindrical surfaces) in the operational volume by Laser Induced Optical Breakdown (LIOB). As a consequence of the incisions, the material undergoes the desired configurational change in response to external forces applied on the material. | 09-30-2010 |
20100249762 | System for Performing Intrastromal Refractive Surgery - A system for performing intrastromal ophthalmic laser surgery requires Laser Induced Optical Breakdown (LIOB) of stromal tissue without compromising Bowman's capsule (membrane). In detail, the system is computer-controlled to create symmetrical cuts in the stroma relative to a defined axis of the eye. Importantly, these cuts are all distanced from the axis. The actual location and number of cuts in the surgery will depend on the degree of visual aberration being corrected. Further, the system may create different types of cuts in the stroma. For example, the symmetrical cuts (by type) may include cylindrical, radial or annular layer cuts. The different type cuts may be intersecting or non-intersecting depending on the visual aberration being treated. | 09-30-2010 |
20110022037 | System and Method for Minimizing the Side Effects of Refractive Corrections Using Line or Dot Cuts for Incisions - A system and method for performing refractive surgery in an eye requires creating a plurality of cuts in the stroma or the lens that are randomly positioned relative to a reference axis. The geometry for each cut is unique and includes a start point in the stroma that is identified by a distance “r” from the axis, and an azimuthal angle “θ” that is measured around the axis. A computer provides concerted control for a laser unit and an optical scanner to randomly vary the start point for each cut, to create a pattern of cuts that will implement the desired refractive surgery, yet be visually illusive. | 01-27-2011 |
20110128501 | SYSTEM FOR CHARACTERIZING A CORNEA AND OBTAINING AN OPHTHALMIC LENS - A system for determining the shape of a cornea of an eye illuminates at least one of the interior surface, the posterior surface, and the interior region of the eye with infrared light of a wavelength that can generate fluorescent light from the portion of the cornea illuminated. The generated fluorescent light is then detected. A step of illuminating can comprise focusing the infrared light in a plurality of different planes substantially perpendicular to the optical axis of the eye. From the detected light it is possible to create a map of at least a portion of the interior surface, at least a portion of the posterior surface, and/or portion of the interior region of the cornea. Clarity of vision can be determined by generating autofluorescence from proteins in the pigment epithelial cells of the retina. | 06-02-2011 |
20110210459 | SYSTEM FOR FORMING AND MODIFYING LENSES AND LENSES FORMED THEREBY - A lens for placement in a human eye, such as intraocular lens, has at least some of its optical properties formed with a laser. The laser forms modified loci in the lens when the modified loci have a different refractive index than the refractive index of the material before modification. Different patterns of modified loci can provide selected dioptic power, toric adjustment, and/or aspheric adjustment provided. Preferably both the anterior and posterior surfaces of the lens are planar for ease of placement in the human eye. | 09-01-2011 |
20110216314 | Laser Control with Phase Plate Feedback - An ophthalmic imaging system includes a light source, focusing optics, compensating optics, and a computer that coordinates both of the optics to optimize the Diffraction Limited Point Spread Function (DL-PSF) of the imaging light beam. In detail, the compensating optics includes a customized phase plate that provides substantially complete compensation for static aberrations introduced by an eye into the imaging light beam. Further, the computer measures an operational error signal that results from dynamic aberrations. The computer then uses the error signal to control the compensating optics and thereby optimize the DL-PSF by compensating for both static and dynamic aberrations. For an alternate embodiment, an active mirror can be included in the compensating optics to provide additional compensation for the dynamic aberrations. | 09-08-2011 |
20120140178 | System and Method for Assessing Risk of Glaucoma Onset - A system and method for predicting the onset of glaucoma uses a Finite Element Model (FEM) to obtain a response profile of the Optical Nerve Head (ONH) inside an eye. To do this, the FEM is programmed with data from first and second images of the ONH that are respectively taken at the beginning and the end of an imposed pressure differential (e.g. over a range of about 8 kPa). The FEM is then subjected to a sequence of pressure increments and the resultant profile is compared with empirical data to predict an onset of glaucoma. | 06-07-2012 |
20120143035 | System and Method for Assessing Risk of Glaucoma Onset - A system and method for predicting the onset of glaucoma uses a Finite Element Model (FEM) to obtain a response profile of the Optical Nerve Head (ONH) inside an eye. To do this, the FEM is programmed with data from first and second images of the ONH that are respectively taken at the beginning and the end of an imposed pressure differential (e.g. over a range of about 8 kPa). The FEM is then subjected to a sequence of pressure increments and the resultant profile is compared with empirical data to predict an onset of glaucoma. | 06-07-2012 |
20130103144 | SYSTEM FOR FORMING AND MODIFYING LENSES AND LENSES FORMED THEREBY - A lens for placement in a human eye, such as an intraocular lens, has at least some of its optical properties modified with a laser. The lens preferably contains at least 5% by weight UV absorber so commercially feasible rates of manufacture can be achieved. The laser forms modified loci in the lens where the modified loci have a different refractive index than the refractive index of the material before modification. The same laser modification technique can be used on the cornea in situ. | 04-25-2013 |
20130116675 | System and Method for Correcting Higher Order Aberrations with Changes in Intrastromal Biomechanical Stress Distributions - A method for correcting higher order aberrations in an eye requires Laser Induced Optical Breakdown (LIOB) of stromal tissue. In detail, the method identifies at least one volume of stromal tissue in the eye, with each volume defining a central axis parallel to the visual axis of the eye. Thereafter, a pulsed laser beam is focused to a focal spot in each volume of stromal tissue to cause LIOB of stromal tissue at the focal spot. Further, the focal spot is moved through the volume of stromal tissue to create a plurality of incisions centered about the respective central axis of the volume. As a result, a predetermined selective weakening of the stroma is caused for correction of the higher order aberration. | 05-09-2013 |
20140058365 | System and Method for Using Compensating Incisions in Intrastromal Refractive Surgery - A system and method for performing intrastromal ophthalmic laser surgery requires Laser Induced Optical Breakdown (LIOB) of stromal tissue without compromising Bowman's capsule (membrane). In detail, at least one singularly unique, intrastromal compensating incision is made relative to a defined axis of the eye. The location of this compensating incision is specifically selected to counter and minimize the adverse effect on vision that may be caused by a predetermined (e.g. surgically introduced) asymmetrical optical condition. | 02-27-2014 |
20140084501 | SYSTEM FOR FORMING AND MODIFYING LENSES AND LENSES FORMED THEREBY - A lens for placement in a human eye, such as intraocular lens, has at least some of its optical properties formed with a laser. The laser forms modified loci in the lens when the modified loci have a different refractive index than the refractive index of the material before modification. Different patterns of modified loci can provide selected dioptic power, toric adjustment, and/or aspheric adjustment provided. Preferably both the anterior and posterior surfaces of the lens are planar for ease of placement in the human eye. | 03-27-2014 |
20140135920 | Hydrophilicity Alteration System and Method - 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. | 05-15-2014 |
20140239524 | HYDROPHILICITY ALTERATION SYSTEM AND METHOD - 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. | 08-28-2014 |
20140243443 | HYDROPHILICITY ALTERATION SYSTEM AND METHOD - 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. | 08-28-2014 |
20140249516 | HYDROPHILICITY ALTERATION SYSTEM AND METHOD - 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. | 09-04-2014 |
20140288644 | HYDROPHILICITY ALTERATION SYSTEM AND METHOD - 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. | 09-25-2014 |
20150076723 | SYSTEM FOR FORMING AND MODIFYING LENSES AND LENSES FORMED THEREBY - A lens for placement in a human eye, such as intraocular lens, has at least some of its optical properties formed with a laser. The laser forms modified loci in the lens when the modified loci have a different refractive index than the refractive index of the material before modification. Different patterns of modified loci can provide selected dioptic power, toric adjustment, and/or aspheric adjustment provided. Preferably both the anterior and posterior surfaces of the lens are planar for ease of placement in the human eye. | 03-19-2015 |