Abstract: Apparatus and methods are described for determining a property of a bodily sample using a microscope and optical-density-measurement apparatus, the apparatus including a sample carrier that includes a plurality of microscopy sample chambers configured to receive a first portion of the sample and to facilitate imaging of the first portion of the sample by the microscope, each of the microscopy sample chambers having an upper and a lower surface, and having respective heights between the upper and lower surfaces that are different from each other. The sample carrier includes at least one optical-density-measurement chamber configured to receive a second portion of the sample, and to facilitate optical density measurements being performed optical-density-measurement apparatus upon the second portion of the sample. Other applications are also described.

Abstract: Apparatus and methods are described for use with an output device, and a blood sample that was drawn from a subject. A microscope system acquires first and second images of the blood sample at respective times. A computer processor determines whether, between acquisitions of the first and second images, there was relative motion between at least one erythrocyte within the sample and at least one entity within the sample, by comparing the first and second images to one another. At least partially in response thereto, the computer processor determines whether the entity is an extra-erythrocytic or an intra-erythrocytic entity, and generates an output on the output device, at least partially in response thereto. Other applications are also described.

Abstract: A method for augmenting a physical display with an extended reality display. A processor receives first signals representative of a first object fully presented on a physical display, second signals representative of a second object having a first portion presented on the physical display and a second portion extending beyond a border of the physical display, and third signals representative of a third object initially presented on the physical display and subsequently wholly moved beyond the border of the physical display. In response to receiving the second signals, the second portion is presented via a wearable extended reality appliance in a virtual space while the first portion is presented on the physical display. In response to receiving the third signals, the third object is wholly presented via the wearable extended reality appliance in the virtual space following the third object having been wholly presented on the physical display.

Abstract: Apparatus and methods are described for use with a blood sample. Using a microscope (24), three images of a microscopic imaging field of the blood sample are acquired, each of the images being acquired using respective, different imaging conditions, and the first one of the three images being acquired under violet-light brightfield imaging. Using at least one computer processor (28), an artificial color microscopic image of the microscopic imaging field is generated, by mapping the first one of the three images to a red channel of the artificial color microscopic image, mapping a second one of the three images to a second color channel of the artificial color microscopic image, and mapping a third one of the three images to a third color channel of the artificial color microscopic image. Other applications are also described.

Abstract: Apparatus and methods are described including measuring hematocrit within a blood sample, by performing a first measurement on a first portion of the blood sample. Mean corpuscular volume in the blood sample is measured, by performing a second measurement on a second portion of the blood sample, the second portion being diluted with respect to the first portion. A red blood cell count per unit volume within the blood sample is determined by dividing the hematocrit measured within the first portion by the mean corpuscular volume measured within the second portion. Other applications are also described.

Abstract: Systems, methods, and computer program products are provided for performing operations for presenting content in three dimensional (3D) environments. Performing operations for presenting content in 3D environments includes: requesting content for virtual presentation in an environment of an extended reality appliance; receiving the content for presentation in the environment; receiving with the content, a plurality of tags, each of the plurality of tags being associated with a portion of the content; capturing, using an image sensor, a layout of the environment; for each tag, selecting, based on the tag, a 3D placement requirement for the content portion associated with the tag; and for each content portion, determining, based on the layout of the environment and the 3D placement requirement selected for the respective content portion, a location in the environment for virtual placement of the respective content portion.

Abstract: Devices, methods and kits are described for reducing intraocular pressure. The devices include a support that is implantable within Schlemm's canal and that may restore or maintain at least partial patency of the canal without substantially interfering with transmural or transluminal fluid flow across the canal. The devices utilize the natural drainage process of the eye and may be implanted with minimal trauma to the eye. Kits may include a support and an introducer for implanting the support within Schlemm's canal. Methods may include implanting a support within Schlemm's canal, where the support is capable of restoring or maintaining at least partial patency of the canal without substantial interference with transmural or transluminal fluid flow across the canal.

Abstract: Apparatus and methods are described including placing a first portion of a biological sample into a source sample portion chamber of a sample carrier, and placing a second portion of the biological sample into a diluted sample portion chamber. The second portion of the biological sample is diluted with respect to the first portion of the biological sample. Using an optical measurement device, a bulk-level measurand of the sample that relates to a parameter of the biological sample as a whole is measured, by performing a measurement upon the first portion of the biological sample. Microscopic images of the second portion of the biological sample are acquired. Other applications are also described.

Abstract: A system for monitoring manufacturing includes one or more sensors and a controller in communication with the one or more sensors. The controller may include one or more processors that determine a quality metric represented by machine data collected from one or more machine data sensors and identify a correlation value between the machine data and environmental data collected from one or more environmental data sensors. The controller may further include determine if the correlation value exceeds a predetermined threshold value, and if the correlation value exceeds the predetermined threshold value, report at least one of the correlation value and the quality metric.

Abstract: Systems, methods, and computer program products are provided for facilitating presentation of content in a three dimensional (3D) environment. Facilitating presentation of content in a 3D environment includes: receiving an indication of device settings of an extended reality appliance; receiving an indication of content requested for presentation via the extended reality appliance; based on the device settings, selecting 3D placement requirements for the requested content, the 3D placement requirements including at least one of: a 3D physical background, a visual span, virtual object positioning protocols, 3D anchoring requirements, 3D content size requirements, or ambient illumination requirements; transmitting the selected 3D placement requirements and the requested content, the transmitted content including at least one tag for associating portions of the content with at least some of the 3D placement requirements to thereby enable the extended reality appliance to display the content in a 3D environment.

Abstract: Systems, methods, and computer program products are provided for performing operations for presenting content in three dimensional (3D) environments. Performing operations for presenting content in 3D environments includes: requesting content for virtual presentation in an environment of an extended reality appliance; receiving the content for the virtual presentation in the environment; receiving with the content, a plurality of tags, each being associated with a portion of the content, wherein a particular portion of the content associated with a particular tag includes an inanimate virtual object; for each tag, selecting, based on the respective tag, a 3D placement requirement for the portion of the content associated with the respective tag; and for each portion of the content, determining, based on a layout of the environment and the selected 3D placement requirement, a location in the environment for virtual placement of the respective portion of the content.

Abstract: Described here are systems and methods for accessing Schlemm's canal and for delivering an ocular device or fluid composition therein. The ocular devices may maintain the patency of Schlemm's canal without substantially interfering with transmural fluid flow across the canal. The fluid composition may be a viscoelastic fluid that is delivered into the canal to facilitate drainage of aqueous humor by disrupting the canal and surrounding trabeculocanalicular tissues. Tools for disrupting these tissues and minimally invasive methods for treating medical conditions associated with elevated intraocular pressure, including glaucoma, are also described.

Abstract: Described here are systems and methods for accessing Schlemm's canal and for delivering an ocular device or fluid composition therein. The ocular devices may maintain the patency of Schlemm's canal without substantially interfering with transmural fluid flow across the canal. The fluid composition may be a viscoelastic fluid that is delivered into the canal to facilitate drainage of aqueous humor by disrupting the canal and surrounding trabeculocanalicular tissues. Tools for disrupting these tissues and minimally invasive methods for treating medical conditions associated with elevated intraocular pressure, including glaucoma, are also described.

Abstract: Systems, methods, and non-transitory computer readable media including instructions for presenting location-based content are described. Presenting location-based content includes obtaining an indication of a current physical location of an extended reality appliance; providing the indication to a first server that maps physical locations to a plurality of content addresses; receiving from the first server, at least one specific content address associated with the current physical location; using the at least one specific content address to access a second server; receiving content, associated with the current physical location, from the second server; and presenting the content via the extended reality appliance, while the extended reality appliance is in the current physical location.

Abstract: Systems, methods, and non-transitory computer readable media including instructions for customizing location-based content presentation are described.

Abstract: Systems and methods for inserting supplemental content into presentations of two-dimensional video content are disclosed. Exemplary implementations may: obtain two-dimensional video content depicting a three-dimensional space; obtain supplemental content; obtain a model of the three-dimensional space defining the one or more visible physical features within the three-dimensional space; determine the camera position of the two-dimensional video content; identify a presentation location within the two-dimensional video content; determine integration information; modify the two-dimensional video content to include the supplemental content at the identified presentation locations in accordance with the integration information and/or perform other operations.

Abstract: A system and a method for content localization in moving vehicles may include receiving from within a moving vehicle first acceleration data captured using a first sensor included in an extended reality appliance mountable on a head of a wearer. The first acceleration data includes a first component associated with movement of the head of the wearer with respect to the vehicle and a second component associated with movement of the vehicle. The system also includes receiving from within the moving vehicle second acceleration data captured using a second sensor included in a personal input device. The personal input device may be a non-vehicle component configured to be paired with the extended reality appliance. The system may segregate the second component from the first component using the first acceleration data and the second acceleration data to thereby isolate the head acceleration with respect to the vehicle from the vehicle acceleration.

Abstract: Consistent with disclosed embodiments, systems, methods, and computer readable media including instructions for wearable extended reality appliances to share virtual content. Embodiments may include a processor to generate a visual code reflecting a first physical position of a mobile device. The visual code may be presented on a display of the mobile device in order for the plurality of wearable extended reality appliances to detect the visual code. The plurality of wearable extended reality appliances may share content in a common coordinate system upon detection of the visual code. The processor may detect movement of the mobile device to a second physical position different from the first physical position. The processor may alter the presentation of the visual code upon the detected movement of the mobile device making the visual code unavailable for use in content sharing.

Abstract: Apparatus and methods are described including a digital camera, and a computer processor configured to drive the digital camera to acquire, for each of a plurality of imaging fields of a stained bodily sample, three or more digital images. At least one of the images is a brightfield image and at least two of the images are fluorescent images, each of the fluorescent images being acquired using respective first and second filters, which are different from each other. The computer processor performs image processing on the digital images, by extracting visual classification features from each of the three or more digital images, and identifies one or more entities that are contained within the bodily sample, based upon the image processing. Other applications are also described.

Abstract: A system and method for preventing virtual collisions may include presenting, via an extended reality appliance, a first virtual object docked to a first movable physical object and a second virtual object docked to a second movable physical object. The movement of the first and second physical objects may be tracked and an impending collision between the first virtual object and the second virtual object may be determined. Priority rules establishing that the first physical object has priority over the second physical object may be accessed. And based on the priority rules, favoring the first virtual object over the second virtual object at the time of the impending collision.