Palo Alto, CA, United States
Palo Alto, CA, United States

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Patent
Wavefront | Date: 2016-11-03

Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. An optical diagnostic method for an eye includes obtaining a sequence of aberration measurements of the eye, identifying an outlier aberration measurement of the sequence of aberration measurements, and excluding the outlier aberration measurement from the sequence of aberration measurements to produce a qualified sequence of aberration measurements. The sequence of aberrations measurements can be obtained by using a wavefront sensor. An optical correction for the eye can be formulated in response to the qualified sequence of aberration measurements.


Angle multiplexed optical coherence tomography systems and methods can be used to evaluate ocular tissue and other anatomical structures or features of a patient. The angle multiplexed optical coherence tomography system includes a light source, an optical assembly for obtaining a plurality of sample beams corresponding to respective anatomical locations of the eye of the patient, where individual sample beams are associated with a respective non-zero angle relative to a reference beam, and a detection mechanism that detects individual unique interference patterns respectively provided by the plurality of sample beams, for simultaneous evaluation of the anatomical locations.


Improved devices, systems, and methods for planning cataract surgery on an eye of a patient incorporate results of prior corrective surgeries into a planned cataract surgery of a particular patient by driving an effective surgery vector function based on data from the prior corrective surgeries. The exemplary effective surgery vector employs an influence matrix which may allow improved refractive corrections to be generated so as to increase the overall efficacy of a cataract surgery by specifying one or more parameters of an intraocular lens (IOL) to be implanted during the cataract surgery.


Patent
Wavefront | Date: 2016-09-07

Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. An optical diagnostic method for an eye includes obtaining a sequence of aberration measurements of the eye, identifying an outlier aberration measurement of the sequence of aberration measurements, and excluding the outlier aberration measurement from the sequence of aberration measurements to produce a qualified sequence of aberration measurements. The sequence of aberrations measurements can be obtained by using a wavefront sensor. An optical correction for the eye can be formulated in response to the qualified sequence of aberration measurements.


Patent
Wavefront | Date: 2016-08-17

A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length,/ The second light sources are disposed to be in an optical path approximately one focal length,/ away from the optical element


Patent
Wavefront | Date: 2015-11-25

The present invention relates to a system for determining a surface shape of a test object, comprising: a pattern of lighter or more reflective portions configured to reflect light including a plurality of first elements disposed about a central axis and defining an aperture containing the central axis, the first elements including a plurality of common elements having a common form and a reference element having a reference form that is different than the common form; a detector array; and an optical system adapted to provide spot images of the first elements when light reflects off a surface of the test object, passes through the aperture, and is received by the detector array; wherein the reference form is configured to facilitate an association between the common elements and the spot images of the common elements.


A system for predicting optical power for an intraocular lens based upon measured biometric parameters in a patients eye includes: a biometric reader capable of measuring at least one biometric parameter and a representation of a corneal topography of the patients eye; a processor coupled to a computer readable medium having stored thereon a program that upon execution causes the processor to receive the at least one biometric parameter and obtain corneal spherical aberration based upon the representation of the corneal topography, and the processor calculates an optimized optical power to obtain a desired postoperative condition by applying the received value and obtained corneal spherical aberration to a modified regression, wherein the modified regression is of the form:


Patent
Wavefront | Date: 2016-01-14

Embodiments of this invention generally relate to systems and methods for wavefront interactive refraction display and more particularly to systems and methods for capturing and displaying eye wavefront interactive refraction data based on the desired refractive state of the patients eye.


Grant
Agency: National Aeronautics and Space Administration | Branch: | Program: STTR | Phase: Phase II | Award Amount: 749.99K | Year: 2016

We propose to develop a Photon-Counting Integrated Circuit (PCIC) detector and focal plane array (FPA) with highest sensitivity, lowest noise and hence highest signal-to-noise ratio (S/N) among all FPAs covering the shortwave infrared band, for incorporation into a prototype imaging spectroscopy CAMM instrument for real-time operation on a planetary surface to guide rover targeting, sample selection (for missions involving sample return), and science optimization of data returned to earth, thus improving science return from instruments used to study the elemental, chemical, and mineralogical composition of planetary materials. During Phase I, we have successfully proven the concept of a limited-size array of PCIC detector pixels as well as the imaging spectrometer CAMM instrument. In Phase II, we will develop and prototype a PCIC focal plane array (FPA) as well as the imaging spectrometer CAMM instrument.


Grant
Agency: Department of Defense | Branch: Missile Defense Agency | Program: SBIR | Phase: Phase II | Award Amount: 1000.00K | Year: 2015

During Phase II, we will prototype the PCIC imager; characterize its dark count rate, quantum efficiency, gain, crosstalk, bandwidth, jitter, etc., as a function of the bias voltages and temperatures; perform environmental testing including operating temperature, vibration and thermal testing; compare between design specifications, model, simulation, and analysis and measured PCIC performance; deliver prototype PCIC imager. Approved for Public Release 15-MDA-8169 (20 March 15)

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