Patent application number | Description | Published |
20100290668 | LONG DISTANCE MULTIMODAL BIOMETRIC SYSTEM AND METHOD - A system for multimodal biometric identification has a first imaging system that detects one or more subjects in a first field of view, including a targeted subject having a first biometric characteristic and a second biometric characteristic; a second imaging system that captures a first image of the first biometric characteristic according to first photons, where the first biometric characteristic is positioned in a second field of view smaller than the first field of view, and the first image includes first data for biometric identification; a third imaging system that captures a second image of the second biometric characteristic according to second photons, where the second biometric characteristic is positioned in a third field of view which is smaller than the first and second fields of view, and the second image includes second data for biometric identification. At least one active illumination source emits the second photons. | 11-18-2010 |
20110118654 | Eye Therapy - Embodiments apply a cross-linking agent to a region of corneal tissue. The cross-linking agent improves the ability of the corneal tissue to resist undesired structural changes. For example, the cross-linking agent may be Riboflavin or Rose Bengal, and the initiating element may be photoactivating light, such as ultraviolet (UV) light. In these embodiments, the photoactivating light initiates cross-linking activity by irradiating the applied cross-linking agent to release reactive oxygen radicals in the corneal tissue. The cross-linking agent acts as a sensitizer to convert O | 05-19-2011 |
20110237999 | SYSTEMS AND METHODS FOR APPLYING AND MONITORING EYE THERAPY - Devices and approaches for activating cross-linking within corneal tissue to stabilize and strengthen the corneal tissue following an eye therapy treatment. A feedback system is provided to acquire measurements and pass feedback information to a controller. The feedback system may include an interferometer system, a corneal polarimetry system, or other configurations for monitoring cross-linking activity within the cornea. The controller is adapted to analyze the feedback information and adjust treatment to the eye based on the information. Aspects of the feedback system may also be used to monitor and diagnose features of the eye | 09-29-2011 |
20110285836 | Multimodal Ocular Biometric System - A multimodal biometric identification system captures and processes images of both the iris and the retina for biometric identification. Another multimodal ocular system captures and processes images of the iris and/or the from both eyes of a subject. Biometrics based on data provided by these systems are more accurate and robust than using biometrics that include data from only the iris or only the retina from a single eye. An exemplary embodiment emits photons to the iris and the retina of both eyes, an iris image sensor that captures an image of the iris when the iris reflects the emitted light, a retina image sensor that captures an image of the retina when the retina reflects the emitted light, and a controller that controls the iris and the retina illumination sources, where the captured image of the iris and the captured image of the retina contain biometric data. | 11-24-2011 |
20120200689 | LONG DISTANCE MULTIMODAL BIOMETRIC SYSTEM AND METHOD - A system for multimodal biometric identification has a first imaging system that detects one or more subjects in a first field of view, including a targeted subject having a first biometric characteristic and a second biometric characteristic; a second imaging system that captures a first image of the first biometric characteristic according to first photons, where the first biometric characteristic is positioned in a second field of view smaller than the first field of view, and the first image includes first data for biometric identification; a third imaging system that captures a second image of the second biometric characteristic according to second photons, where the second biometric characteristic is positioned in a third field of view which is smaller than the first and second fields of view, and the second image includes second data for biometric identification. At least one active illumination source emits the second photons. | 08-09-2012 |
20120215155 | CONTROLLED CROSS-LINKING INITIATION AND CORNEAL TOPOGRAPHY FEEDBACK SYSTEMS FOR DIRECTING CROSS-LINKING - Devices and approaches for activating cross-linking within corneal tissue to stabilize and strengthen the corneal tissue following an eye therapy treatment. A feedback system is provided to acquire measurements and pass feedback information to a controller. The feedback system may include an interferometer system, a corneal polarimetry system, or other configurations for monitoring cross-linking activity within the cornea. The controller is adapted to analyze the feedback information and adjust treatment to the eye based on the information. Aspects of the feedback system may also be used to monitor and diagnose features of the eye. Methods of activating cross-linking according to information provided by a feedback system in order to improve accuracy and safety of a cross-linking therapy are also provided. | 08-23-2012 |
20120310083 | SYSTEMS AND METHODS FOR MONITORING TIME BASED PHOTO ACTIVE AGENT DELIVERY OR PHOTO ACTIVE MARKER PRESENCE - Devices and approaches for monitoring time based photo active agent delivery or photo active marker presence in an eye. A monitoring system is provided for measuring the presence of a photo active marker by illuminating the eye so as to excite the photo-active marker and then observing characteristic emission from the photo active marker. Example systems incorporate Scheimpflug optical systems or slit lamp optical systems to observe cross sectional images of an eye to monitor instantaneous distribution, diffusion pattern, and rate of uptake of a photo active agent applied to an eye. Systems and methods further allow for utilizing the monitored distribution of photo active agent in the eye as feedback for a cross-linking system. | 12-06-2012 |
20130060187 | SYSTEMS AND METHODS FOR CORNEAL CROSS-LINKING WITH PULSED LIGHT - A method for controlling activation of Riboflavin applied to an eye includes applying the Riboflavin to a selected region of a cornea of the eye and initiating cross-linking activity in the selected region by activating the Riboflavin with pulsed light illumination. The pulsed light illumination has an irradiance, dose, and an on/off duty cycle. The irradiance, the dose, and the on/off duty cycle are adjusted in response to a determination of photochemical kinetic pathways for Riboflavin cross-linking activity and to control photochemical efficiency. | 03-07-2013 |
20130085370 | SYSTEMS AND METHODS FOR APPLYING AND MONITORING EYE THERAPY - In systems and methods for generating cross-linking activity in an eye, a feedback system monitors a biomechanical strength of the eye in response to the photoactivation of a cross-linking agent applied to an eye. The feedback system includes a perturbation system that applies a force to the eye and a characterization system that determines an effect of the force on the eye. The effect of the force provides an indicator of the biomechanical strength of the eye. The characterization system determines the effect of the force on the eye by measuring an amount of deformation caused by the force or a rate of recovery from the deformation. | 04-04-2013 |
20130141560 | MULTIMODAL OCULAR BIOMETRIC SYSTEM - A multimodal biometric identification system captures and processes images of both the iris and the retina for biometric identification. Another multimodal ocular system captures and processes images of the iris and/or the from both eyes of a subject. Biometrics based on data provided by these systems are more accurate and robust than using biometrics that include data from only the iris or only the retina from a single eye. An exemplary embodiment emits photons to the iris and the retina of both eyes, an iris image sensor that captures an image of the iris when the iris reflects the emitted light, a retina image sensor that captures an image of the retina when the retina reflects the emitted light, and a controller that controls the iris and the retina illumination sources, where the captured image of the iris and the captured image of the retina contain biometric data. | 06-06-2013 |
20130245536 | SYSTEMS AND METHODS FOR CORNEAL CROSS-LINKING WITH PULSED LIGHT - A method for controlling activation of a cross-linking agent applied to an eye includes applying the cross-linking agent to a selected region of a cornea of the eye and initiating cross-linking activity in the selected region by activating the cross-linking agent with pulsed light illumination. The pulsed light illumination has a selectable wavelength, irradiance, dose, and on/off duty cycle. The wavelength, the irradiance, the dose, and the on/off duty cycle are adjusted in response to a determination of photochemical kinetic pathways for cross-linking activity and to control photochemical efficiency, depth of cross-linking, and density of cross-linking. | 09-19-2013 |
20140024997 | Eye Therapy System - Embodiments apply a cross-linking agent to a region of corneal tissue. The cross-linking agent improves the ability of the corneal tissue to resist undesired structural changes. For example, the cross-linking agent may be Riboflavin or Rose Bengal, and the initiating element may be photoactivating light, such as ultraviolet (UV) light. In these embodiments, the photoactivating light initiates cross-linking activity by irradiating the applied cross-linking agent to release reactive oxygen radicals in the corneal tissue. The cross-linking agent acts as a sensitizer to convert O | 01-23-2014 |
20140066835 | SYSTEMS AND METHODS FOR CORNEAL CROSS-LINKING WITH PULSED LIGHT - Systems and methods for treating an eye select locations for making incisions in areas of the cornea according to astigmatic keratotomy or radial keratotomy, make incisions in the selected areas of the cornea, apply a cross-linking agent to the selected areas of the cornea, and deliver photoactivating light from a light source to the selected areas of the cornea to initiate cross-linking activity in the selected areas of the cornea. | 03-06-2014 |
20140276361 | SYSTEMS AND METHODS FOR TREATING GLAUCOMA - A glaucoma treatment system includes: a cannula body configured to be positioned in an area of Schlemm's canal; an illumination guide extending along the cannula body; at least one drug source coupled to the cannula body; a cross-linking agent source coupled to the cannula body; and an illumination source coupled to the illumination guide. The at least one drug source includes a drug that promotes outflow of aqueous humor through the trabecular meshwork and into Schlemm's canal. The cannula body delivers the drug from the at least one drug source to the area of Schlemm's canal, and in response to changes in the outflow of aqueous humor, delivers the cross-linking agent to the area of Schlemm's canal. The illumination guide delivers photo-activating light from the illumination source to the area of Schlemm's canal. The photo-activating light activates the cross-linking agent, thereby stabilizing changes in the area of Schlemm's canal. | 09-18-2014 |
20140277431 | TREATMENTS OF EXTRACELLULAR MATRICES OF THE EYE - System and methods for a corrective eye procedure include at least one application device configured to be positioned at a selected area of an eye (e.g., equatorial sclera, posterior sclera, cornea, etc.). The at least one device includes at least one channel and at least one illumination guide. A cross-linking agent source is coupled to the at least one channel. An illumination source is coupled to the at least one illumination guide. The at least one device delivers the cross-linking agent to the selected area of the eye. The at least one device delivers photo-activating light from the illumination source to the selected area of the eye after the cross-linking agent has been delivered. The photo-activating light includes one or more doses necessary for activating the cross-linking agent and for activating TGF-β isoforms to improve health of extracellular matrices in the selected area of the eye. | 09-18-2014 |
20140320819 | SYSTEMS AND METHODS FOR DELIVERING LIGHT IN EYE TREATMENTS - A system for applying a treatment to an eye includes a housing having a first end and a second end, a contact element having an open end and a closed end, and a light source disposed within the housing and configured to direct light toward the open end. The contact element is coupled to the first end of the housing at the closed end. The open end is configured to be positioned at an eye. | 10-30-2014 |
20140343480 | SYSTEMS, METHODS, AND COMPOSITIONS FOR CROSS-LINKING - Various agents and additives for cross-linking treatments are identified in disclosed studies. The characteristics of the various agents and additives may be advantageously employed in formulations applied in cross-linking treatments of the eye. In some embodiments, riboflavin is combined with Iron(II) to enhance the cross-linking activity generated by the riboflavin. In other embodiments, cross-linking treatments employ an Iron(II) solution in combination with a hydrogen peroxide pre-soak. In yet other embodiments, 2,3-butanedione is employed to increase the efficacy of corneal cross-linking with a photosensitizer, such as riboflavin. In further embodiments, folic acid is employed in combination with a photosensitizer, such as riboflavin, to enhance cross-linking activity. In yet further embodiments, 2,3-butanedione, folic acid, a quinoxaline, a quinoline, dibucaine, Methotrexate, menadione, or a derivative thereof is applied as a cross-linking agent. | 11-20-2014 |
20140368792 | SYSTEMS AND METHODS FOR DETERMINING BIOMECHANICAL PROPERTIES OF THE EYE FOR APPLYING TREATMENT - A system for determining biomechanical properties of corneal tissue includes a light source configured to provide an incident light and a confocal microscopy system configured to scan the incident light across a plurality of cross-sections of corneal tissue. The incident light is reflected by the corneal tissue as scattered light. The system also includes a filter or attenuating device configured to block or attenuate the Rayleigh peak frequency of the scattered light, a spectrometer configured to receive the scattered light and process frequency characteristics of the received scattered light to determine a Brillouin frequency shift in response to the Rayleigh peak frequency being blocked or attenuated by the filter or attenuating device, and a processor configured to generate a three-dimensional profile of the corneal tissue according to the determined Brillouin frequency shift. The three-dimensional profile provides an indicator of one or more biomechanical properties of the corneal tissue. | 12-18-2014 |
20140368793 | SYSTEMS AND METHODS FOR DETERMINING BIOMECHANICAL PROPERTIES OF THE EYE FOR APPLYING TREATMENT - A system for determining biomechanical properties of corneal tissue includes a light source configured to provide an incident light and a confocal microscopy system configured to scan the incident light across a plurality of cross-sections of corneal tissue. The incident light is reflected by the corneal tissue as scattered light. The system also includes a filter or attenuating device configured to block or attenuate the Rayleigh peak frequency of the scattered light, a spectrometer configured to receive the scattered light and process frequency characteristics of the received scattered light to determine a Brillouin frequency shift in response to the Rayleigh peak frequency being blocked or attenuated by the filter or attenuating device, and a processor configured to determine a three-dimensional profile of the corneal tissue according to the determined Brillouin frequency shift. The three-dimensional profile provides an indicator of one or more biomechanical properties of the corneal tissue. | 12-18-2014 |
20150025440 | Eye Therapy System - Embodiments apply a cross-linking agent to a region of corneal tissue. The cross-linking agent improves the ability of the corneal tissue to resist undesired structural changes. For example, the cross-linking agent may be Riboflavin or Rose Bengal, and the initiating element may be photoactivating light, such as ultraviolet (UV) light. In these embodiments, the photoactivating light initiates cross-linking activity by irradiating the applied cross-linking agent to release reactive oxygen radicals in the corneal tissue. The cross-linking agent acts as a sensitizer to convert O | 01-22-2015 |