Abstract: The invention provides surgical procedures for implanting a keratoprosthesis in an eye of a subject in need using a kit comprising keratoprosthesis comprising a central optical core, a peripheral skirt around said central optical core, comprising at least one biocompatible polymer; and a marking tool comprising a polymeric surface in the shape of said central optical core.

Abstract: Methods and systems for identifying a patient at increased risk for development of a retinal condition employ visual field tests. A method of identifying a patient at increased risk for development of a retinal condition includes monitoring the patient via one or more visual field tests. Each of the visual field tests includes displaying stimuli for viewing by an eye of the patient and receiving indications of locations of the stimuli as perceived by the patient. A visual field test score for each of the visual field tests is determined based on the stimuli and the indications of locations of the stimuli as perceived by the patient. In response to at least one of the visual field test scores exceeding a screening threshold, the patient is identified as being at increased risk for development of the retinal condition.

Abstract: The invention provides synthetic structures comprising at least one porous polymer, being an implantable anatomical scaffold, such as orthopedic scaffold, processes for their preparation and uses thereof in implanting into the human body.

Abstract: Some embodiments are directed to a system comprising a MEMS based actuator unit and a control electric circuit. The actuator unit comprising one or more MEMS actuators, each comprising a stator and a rotor and configured to define a payload position in response to electric potential between said stator and rotor. The electric circuit comprising one or more amplifiers configured to provide electric control signal to the one or more MEMS actuators to selectively vary position of said payload. The electric circuit comprises a sensing circuit configured for providing an alternating carrier signal and for monitoring said carrier signal to generate data on impedance of said one or more MEMS actuators indicative of position of the rotor with respect to the stator of said one or more MEMS actuators.

Abstract: A gated camera for dividing a field of view into a plurality of ranges in a depth direction and generating a plurality of slice images corresponding to the plurality of ranges, the gated camera includes: an illumination device configured to irradiate the field of view with pulse illumination light; an image sensor; and a camera controller configured to control a light emission timing of the illumination device and an exposure timing of the image sensor. The camera controller is configured to switch between a first imaging mode in which performance is relatively high and power consumption is relatively high, and a second imaging mode in which performance is relatively low and power consumption is relatively low.

Abstract: A system for verifying a selection of an optical sensor of two or more optical sensors may include: a first optical sensor; a second optical sensor; and a processing unit configured to: receive a selection of one of the first and second optical sensors to provide a selected optical sensor and a non-selected optical sensor; change parameters of the selected optical sensor to a selected set of parameters; receive image frames from the selected optical sensor; change parameters of the non-selected optical sensor to a predefined set of parameters; receive image frames from the non-selected optical sensor; determine that the selected optical sensor operates according to the selected set of parameters and/or that the non-selected optical sensor operates according to the predefined set of parameters; and verify, based on at least one of the determinations, the selection of the optical sensor.

Abstract: A method for acquiring data relating to an object including arranging a multiplicity of cameras to view a scene, at least one reference object within the scene being viewable by at least a plurality of the multiplicity of cameras, each of the plurality of cameras acquiring at least one image of the reference object viewable thereby, finding a point of intersection of light rays illuminating each of the plurality of cameras and correlating a pixel location at which the reference object appears within each the at least one image to the light rays illuminating each of the plurality of cameras and intersecting with the region of intersection, irrespective of a three-dimensional location of the reference object within the scene.

Abstract: A method for acquiring data relating to an object including arranging a multiplicity of cameras to view a scene, at least one reference object within the scene being viewable by at least a plurality of the multiplicity of cameras, each of the plurality of cameras acquiring at least one image of the reference object viewable thereby, finding a point of intersection of light rays illuminating each of the plurality of cameras and correlating a pixel location at which the reference object appears within each the at least one image to the light rays illuminating each of the plurality of cameras and intersecting with the region of intersection, irrespective of a three-dimensional location of the reference object within the scene.

Abstract: A method for acquiring data relating to an object including arranging a multiplicity of cameras to view a scene, at least one reference object within the scene being viewable by at least a plurality of the multiplicity of cameras, each of the plurality of cameras acquiring at least one image of the reference object viewable thereby, finding a point of intersection of light rays illuminating each of the plurality of cameras and correlating a pixel location at which the reference object appears within each the at least one image to the light rays illuminating each of the plurality of cameras and intersecting with the region of intersection, irrespective of a three-dimensional location of the reference object within the scene.

Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of determining one or more optical parameters of a lens of eyeglasses. For example, a product may include one or more tangible computer-readable non-transitory storage media including computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to implement operations of determining one or more optical parameters of a lens of eyeglasses. The operations may include processing at least one image of an object captured via the lens; and determining the one or more optical parameters of the lens based on the at least one image.

Abstract: A method for depth mapping of objects in a scene by a system of a moving/movable platform is disclosed. According to some embodiments, the method includes actively illuminating the scene with pulsed light that is generated by at least one pulsed light illuminator and receiving, responsive to illuminating the scene, reflections on at least one image sensor that comprises a plurality of pixel elements. The method may further include gating at least one of the plurality of pixel elements of the at least one image sensor for converting the reflections into pixel values for generating reflection-based images that have at least two depth-of-field ranges and an overlapping DOF region. In addition, the method may include determining, based on at least one first pixel value of a first DOF in the overlapping DOF region, and based on at least one second pixel value of a second DOF in the overlapping DOF region, depth information of one or more objects located in the overlapping DOF region of the scene.

Abstract: A system for detection and identification of objects and obstacles near, between or on railway comprise several forward-looking imagers adapted to cover each different range forward and preferably to be sensitive each to different wavelength of radiation, including visible light, LWIR, and SWIR. The substantially homogeneous temperature along the rail the image of which is included in an imager frame assists in identifying and distinguishing the rail from the background Image processing is applied to define living creature in the image frame and to distinguish from a man-made object based on temperature of the body. Electro optic sensors (e.g. thermal infrared imaging sensor and visible band imaging sensor) are used to survey and monitor railway scenes in real time.

Abstract: Ophthalmic imaging devices and related methods employ self-alignment of a user with an optical axis of the imaging device. An ophthalmic imaging device includes a retinal imaging assembly, a housing assembly, and a viewer assembly. The retinal imaging assembly has an optical axis. The retinal imaging assembly is attached to the housing. The housing assembly is configured to rest on a horizontal surface during operation of the retinal imaging assembly. The optical axis is oriented at an angle from the horizontal surface when the housing assembly rests on the horizontal surface. The viewer assembly is coupled with the housing assembly. The viewer assembly includes an interface surface shaped for engagement with each head of a plurality of different user's and to accommodate repositioning of the head to align a pupil of the user with the optical axis.

Abstract: An intraocular assembly includes a sulcus fixation frame including at least one anterior haptic restraint member to which a posterior intraocular device receiving member is coupled by means of coupling members. The at least one anterior haptic restraint member includes a sulcus support portion, configured to be received in a sulcus of an eye, and haptic support portions, configured to block anterior movement of haptics of an intraocular device mounted in the sulcus fixation frame or fixate an IOL in the sulcus.

Abstract: A system includes a radiation source and a controller. The controller is configured to designate, for irradiation, multiple target regions on an eye of a patient, and to perform an iterative process that includes, during each iteration of the process, acquiring an image of the eye, based on the image, calculating a location of a different respective one of the target regions, processing the image so as to identify any obstruction at the location, and provided no obstruction at the location is identified, causing the radiation source to irradiate the location. Other embodiments are also described.

Abstract: Described is a robotic apparatus (10) for investigating a confined area comprising: an articulated robot (20) for insertion into a confined area, the robotic apparatus further comprising a robot control system (30) for controlling the articulated robot. Further, the robot control system comprises a control unit (50), a robot driving means, a seal (70) for isolating the confined area from the external environment and at least one transmission member (80), wherein the control unit is configured to send control signals to the robot driving means, and the at least one transmission member extends from the robot driving means to connect to the articulated robot, the at least one transmission member extending through the seal.

Abstract: A filter system includes: a first mixer, converting an input signal into a first signal according to a reference frequency signal, wherein the reference frequency signal corresponding to a target frequency band; an analog-to-digital converter, coupled to the first mixer, converting the first signal into a first digital signal; a digital filter, coupled to the analog-to-digital converter, filtering the first digital signal according to a first frequency band and generating a second digital signal, wherein the first frequency band corresponding to the first signal; a digital-to-analog converter coupled to the digital filter, converting the second digital signal into a second signal; and a second mixer, coupled to the digital-to-analog converter, converting the second signal into an output signal according to the reference frequency signal, wherein the output signal corresponds to the input signal filtered by the target frequency band.

Abstract: Systems and methods for rails and obstacles detection based on forward-looking electrooptical imaging, novel system architecture and novel scene analysis and image processing are disclosed. The processing solution utilizes a deep learning semantic scene segmentation approach based on a rails and switches states detection neural network that determines the railway path of the train in the forward-looking imagery, and an objects and obstacles detection and tracking neural network that analyzes the vicinity of the determined railway path and detects impending obstacles.

Abstract: A system includes a radiation source, one or more beam-directing elements, and a controller. The controller is configured to cause the radiation source to emit one or more aiming beams at the beam-directing elements such that the aiming beams are directed, by the beam-directing elements, toward an eye of a patient, to verify that each of the aiming beams is properly directed by the beam-directing elements, and, in response to verifying that each of the aiming beams is properly directed by the beam-directing elements, to treat the eye by causing the radiation source to irradiate one or more target regions of the eye with respective treatment beams. Other embodiments are also described.