Abstract: A system and method for dynamically a visual function of a subject are provided where the system and method account for fixation eye movement(s); saccade eye movement (s); smooth pursuit eye movement(s); optokinetic nystagmus eye movement(s); and/or blink eye movement, the system for dynamically assessing a visual function of a subject is provided, comprising: i) a visual display; ii) an eye-tracking device configured to detect a gaze position of at least one eye of the subject; and updating in real time the appearance of a first stimulus to provide a second stimulus based on at least on of the updated evidence-of-visibility score and the updated evidence-of-trackability score for the first visual stimulus.

Abstract: A computer-implemented method of searching for a region indicative of a pathology in an image of a portion of an eye acquired by an ocular imaging system, the method comprising: receiving image data defining the image; searching for the region in the image by processing the received image data using a learning algorithm; and in case a region in the image that is indicative of the pathology is found: determining a location of the region in the image; generating an instruction for an eye measurement apparatus to perform a measurement on the portion of the eye to generate measurement data, using a reference point based on the determined location for setting a location of the measurement on the portion of the eye; and receiving the measurement data from the eye measurement apparatus.

Abstract: Eyewear dynamically adjusts viewing effects to match the wearer, the object or scene being viewed (luminance, color prominence, glare, visual blur/noise), other conditions: sensory parameters (gaze direction, focal length, eye gestures, other eye activity, other senses, wearer inputs), medical conditions, wearer location, environmental parameters, wearer activity, use by the wearer, the wearer's field of view. The eyewear can adjust visual features presented to the wearer, such as changes in refraction, polarization/shading, color, prismatic angles/functions, 3D displays. Eyewear can be tailored to form factor: glasses, contacts, RID, IOL, facemask/helmet, vehicles, windows, screens, scopes, AR/VR devices, nerve sensors, external devices. Eyewear can adjust refraction, polarization/shading, color filtering/injection, false coloring, color change; prismatic angles/functions.

Abstract: The present invention relates to systems for low-energy (e.g., 1.0 nJ-7.0 nJ) photoacoustic microscopy and methods for employing such systems. In certain embodiments, such systems employ a low-energy nanosecond pulsed laser beam (NPLB), at least two amplifiers, and a data acquisition system with at least three channels to generate at least three digital signals (e.g., which are averaged and normalized to the energy of the NPLB). In other embodiments, provided herein are systems for combined use of photoacoustic microscopy, dye-based microscopy (e.g., with fluorescein), and optical coherence tomography.

Abstract: A low cost fundus camera uses LED light sources placed adjacent the camera's imaging stop, and thereby eliminates the need for optics for introducing the light source to the camera's optical path. Lens reflex in the pupil relay is avoided by using only reflective optics in the pupil relay. Reflex from the LED is mitigated by actuating each LED separately, one at a time, and capturing a separate image with each actuated LED. Reflex-free regions of each captured image are extracted and combined to create a composite reflex-free image.

Abstract: A system includes a base, and an emitter including a light source operable to generate a beam of visible radiation. The beam of radiation impinges a substantially horizontal support surface at a location approximately three meters from the emitter when the base is disposed on the support surface and the emitter is supported by the base. The system also includes a vision screening device supported by the base, the vision screening device having a first display, and a second display opposite the first display and facing the location. The system further includes a controller operable to cause the second display to output an image included in a visual acuity examination based at least in part on generation of the visible beam.

Abstract: Provided is a wearable fundus camera configured to be worn as a headset by a human, the wearable fundus camera comprising: an infrared light source configured to output infrared light to be directed at a retina of the human; an image sensor configured to capture infrared images depicting a retina of an eye of the human under illumination from the infrared light source without a pupil of the eye being dilated with mydriatics; and an eye cuff configured to be biased against a face of the human and occlude at least some ambient light from reaching the image sensor.

Abstract: This disclosure describes insulated glass units (IGUs) that incorporate electrochromic devices. More specifically, this disclosure focuses on different configurations available for providing an electrical connection to the interior region of an IGU. In many cases, an IGU includes two panes separated by a spacer. The spacer defines an interior region of the IGU and an exterior region of the IGU. Often, the electrochromic device positioned on the pane does not extend past the spacer, and some electrical connection must be provided to supply power from the exterior of the IGU to the electrochromic device on the interior of the IGU. In some embodiments, the spacer includes one or more holes (e.g, channels, mouse holes, other holes, etc.) through which an electrical connection (e.g., wires, busbar leads, etc.) may pass to provide power to the electrochromic device.

Abstract: A slit lamp microscope of some embodiment examples includes an illumination system, photography system, and movement mechanism. The illumination system projects slit light onto an anterior segment of an eye. The photography system includes an optical system and image sensor. The optical system directs light coming from the anterior segment onto which the slit light is being projected. The image sensor includes a light detecting plane that receives the light directed by the optical system. The movement mechanism moves the illumination and photography systems. The subject plane along the optical axis of the illumination system, the optical system, and the light detecting plane satisfy the Scheimpflug condition. The photography system acquires a plurality of images of the anterior segment by performing repetitive photography in parallel with movement of the illumination and photography systems performed by the movement mechanism.

Abstract: The present invention relates to an eye phantom for evaluating a retinal angiography image, and a manufacturing method therefor. A purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, capable of simulating even the vascular structure and blood flow of a retina so as to be more similar to an actual retinal structure than a conventional eye phantom; and a manufacturing method therefor. More specifically, a purpose of the present invention is to provide an eye phantom for evaluating a retinal angiography image, including various shapes of fine fluid channel structures corresponding to the vascular structure formed in an actual retina; and a manufacturing method therefor.

Abstract: In a corneal measurement system, an optical element focuses an excitation light to an area of corneal tissue at a selected depth. In response, a fluorescing agent applied to the cornea generates a fluorescence emission. An aperture of a pinhole structure selectively transmits the fluorescence emission from the area of corneal tissue at the selected depth. A detector captures the selected fluorescence emission transmitted by the aperture and communicates information relating to a measurement of the selected fluorescence emission captured by the detector. A controller receives the information from the detector and determines a measurement of the fluorescing agent in the area of corneal tissue at the selected depth. The system may include a scan mechanism that causes the optical element to scan the cornea at a plurality of depths, and the controller may determine a measurement of the fluorescing agent in the cornea as a function of depth.

Abstract: An ophthalmic photographing apparatus enables easy detection of a pupil diameter. The ophthalmic photographing apparatus is provided with an anterior ocular segment illumination unit for illuminating an anterior ocular segment of a subject eye with invisible light, an imaging element that is sensitive to at least invisible light and captures an image of the subject eye, and a processing unit for processing the image captured by the imaging element. When an image of an index projected onto the anterior ocular segment satisfies a predetermined condition, the processing unit starts detection of a pupil diameter of the subject eye by using the image on the imaging element formed by invisible light reflected from the anterior ocular segment.

Abstract: Methods and systems am disclosed in which an optical diagnosis of an eye's optical image quality is performed using a simulated retinal image. An objective measurement of a total wave aberration is obtained, and residual aberrations are computed by subtracting a sphero-cylindrical correction from the total wave aberration. The simulated retinal image is computed by computing a point-spread function from the residual aberrations and convolving the computed point-spread function with an acuity chart. The optical diagnosis includes at least one of: determining excess aberrations, ranking optics of the eye into optical grades, selecting the eye for high-definition eyeglasses, identifying amblyopia or macular diseases, or choosing an objective refraction for vision correction.

Abstract: A reflectometry instrument includes a light source for emitting an illumination beam that illuminates the macula. A portion of the illumination beam is reflected from the macula and forms a detection beam. The detection beam is indicative of macular pigment in the macula. The instrument also includes a first mirror for reflecting the illumination beam toward the macula and for reflecting the detection beam from the macula. The instrument is configured so that the illumination beam and the detection beam remain separated between the macula and the first mirror.

Abstract: This disclosure relates generally to a method and system for assessment of sustained visual attention of a target. The conventional methods utilize various markers for assessment of attention, however, blink rate variability (BRV) series signal is not explored yet. In an embodiment, the disclosed method utilizes BRV series signal for assessing sustained visual attention of a target. A gaze data of the target is recorded using an eye tracker and a set of uniformly sampled BRV series signal is reconstructed from each of the BRV series. One or more frequency domain features, including pareto frequency, are extracted from the set of uniformly sampled BRV series signal. The values of frequency domain features extracted from the set of BRV series signals are compared with corresponding threshold values to determine visual sustained attention of the target.

Abstract: A system for guiding an ophthalmic procedure is disclosed. The system includes a housing assembly with a head unit configured to be at least partially directed towards a target site in an eye. An optical coherence tomography (OCT) module and stereoscopic visualization camera are at least partially located in the head unit and configured to obtain a first set and a second set of volumetric data, respectively. A controller is configured to register the first set and second set of volumetric data to create a third set of registered volumetric data. The third set and second set of registered volumetric data are rendered, via a volumetric render module, to a first and second region. The first region and the second region are overlaid to obtain a shared composite view of the target site. The controller is configured to extract structural features and/or enable visualization of the target site.

Abstract: An alignment means of a measurement instrument includes a housing an optical component having a principal axis in a direction parallel to a desired alignment; a first light source positioned at a first distance S1 from the optical component and at a first height h1 from the principle axis; a second light source positioned at a second distance S2 from the optical component and at a second height h2 from the principle axis; and an angle barrier means arranged between the optical component, and the first and second light sources. The housing, the optical component, and the angle barrier means are arranged to block visibility of the first light source along the principal axis at a distance superior to d1?; and block visibility of the second light source along the principal axis at a distance smaller than d2, wherein d2 is smaller than d1?.

Abstract: In an ophthalmology system, an right-eye imaged image is displayed on a display section for presentation to an observer through an optical unit and a reflection member. A left-eye imaged image is also displayed on a display section for presentation to an observer through an optical unit and a reflection member. A separation between the left and right imaged images is made wider than a spacing between the left and right optical units. This enables image presentation with the optical axes for the observer viewing the images intersecting in front so as to cause a convergence angle to arise.

Abstract: A method comprises: disposing a physical landmark upon an eye of a user; capturing at least one image of the eye of the user with an image sensor while the eye is illuminated, wherein the image includes an image of the physical landmark and at least one other point on the surface of the eye outside of the cornea; processing the at least one image to obtain at least one metric of the eye of the user; and determining, based on the at least one metric, at least one parameter of a daily use contact lens to be worn on the eye of the user.

Abstract: A window operable to separate an interior from an exterior is disclosed. The window comprises a pressure pane and an anti-condensation assembly. The anti-condensation assembly is disposed in an interior direction relative the pressure pane. Further, the anti-condensation assembly comprises a substantially transparent substrate disposed in a spaced apart relationship relative the pressure pane. Additionally, the anti-condensation assembly comprises a resistively heatable layer associated with the first substrate. The resistively heatable layer is operable to generate heat when an electrical current is applied thereto. Accordingly, application of power to the resistively heatable layer may serve to reduce or eliminate the presence of visible condensation in the window.