Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

A subjective optometry apparatus includes a light projecting optical system that has a visual target presenting portion for emitting a target light flux and projects a target light flux emitted from the visual target presenting portion toward a subject eye, a calibration portion that is disposed in an optical path of the light projecting optical system and changes optical characteristics of the target light flux, an acquisition portion that acquires a near distance objective eye refractive power that is an eye refractive power of the subject eye objectively measured in a near distance viewing state, and a control portion that controls an operation for acquiring a near distance subjective eye refractive power that is a subjective eye refractive power of the subject eye measured in a near distance viewing state, based on the near distance objective eye refractive power.

An ophthalmologic apparatus includes an objective lens, a refractive power measurement optical system, an inspection optical system, and an optical path separating unit. The refractive power measurement optical system is configured to project light in a first wavelength range onto a subject's eye via the objective lens and to detect returning light from the subject's eye. The inspection optical system is configured to project light in a second wavelength range onto the subject's eye via the objective lens. The optical path separating unit that is arranged in an optical path of the refractive power measurement optical system and is configured to separate an optical path of the inspection optical system from the optical path of the refractive power measurement optical system by performing wavelength separation based on changeable wavelength separation characteristics.

A microscope, comprising an observation beam path that renders an eye to be examined observable, a wavefront measuring device for measuring the refraction of the eye to be examined, an OCT device comprising an OCT illumination beam path, by means of which OCT illumination radiation can be focused as an OCT spot into the eye to be examined, and a control unit that is supplied with at least one measurement value of the wave front measuring device, is provided, wherein the control unit sets the beam diameter and/or the beam shape of the OCT spot on the basis of the at least one supplied measurement value.

A device for measuring the optical effect of an ophthalmic lens, in particular a spectacle lens, includes a display system, an image acquisition system, and a computer unit. During measurement, the lens is arranged in a measurement volume of the device. The display system displays a test structure and the image acquisition system acquires image data of the test structure from multiple viewpoints using imaging optical paths which pass through the lens. The computer unit determines the three-dimensional shape of the lens on the basis of the image data and calculates an optical effect of the lens on the basis of its three-dimensional shape. A corresponding method and computer program are also disclosed.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

A method of retrieving data comprises receiving a user input in the form of a command, determining that the user input is a gesture, sending a request to a cloud server based on the determined gesture, receiving data from a knowledge base connected to the cloud server based on the request, and displaying virtual content at the user device based on the received data.

A method of retrieving data comprises receiving a user input in the form of a command, determining that the user input is a gesture, sending a request to a cloud server based on the determined gesture, receiving data from a knowledge base connected to the cloud server based on the request, and displaying virtual content at the user device based on the received data.

A method of automatically evaluating vision of the user may include: subsequently displaying, by the processing unit, on a display, a subset of stimuli of a plurality of stimuli; tracking, by a gaze tracking device, a gaze of the user with respect to at least some of the stimuli of the subset being displayed on the display; obtaining multiple gaze datasets, at least one gaze dataset for at least some of the stimuli of the subset being displayed; and evaluating, by the processing unit, the vision of the user based on at least one of the multiple gaze datasets.