An eye tracking system includes at least two cameras configured to register eye images of at least one eye. The system obtains eye images from at least one camera in a subset of the at least two cameras, determines a first pupil parameter based on a first eye image, and determines a second pupil parameter based on a second eye image. The system compares the first and second pupil parameters to obtain a test parameter and checks the test parameter against at least one operation criterion. Responsive to the checking, the system assigns a respective operation state to at least one camera in the subset. The operation state involves one of (A) operating the camera at a high frame rate, (B) operating the camera at a reduced frame rate being lower than high frame rate, (C) the camera being in a standby mode or (D) the camera being powered off.

An ophthalmic light instrument includes a plug (1) and a light guide (7) for guiding light (10) to a surgical site in the eye. The plug (1) is configured to be magnetically attractable or attractive and can be positioned and connected releasably with respect to a light source in such a way, that coupling of the light (10) into the light instrument takes place at the focal point (14) of the light source (12). An ophthalmic illumination system includes such a light instrument and a socket of the light source. The socket of the light source (4) is configured to be magnetically attractable or attractive and can be positioned and connected releasably with respect to the light source in such a way, that coupling of the light (10) into the light instrument takes place at the focal point (14) of the light source (12).

In examining a patient for progression of glaucoma, a perimeter capable of appropriately assessing visual field progression in a short period of time, therefore lessening the physical burden of testing on the examinee.

An ophthalmic apparatus is capable of communicating with a PDA device provided with a display unit and includes a main body that includes an image-capturing unit, the image-capturing unit obtaining a moving image of an eye to be examined (target eye) based on light returned from the target eye which is illuminated, the moving image of the target eye used by the ophthalmic apparatus for obtaining, based on an examination of the target eye, information regarding the target eye, a driving unit that drives the main body, a transmission unit that transmits, before the information regarding the target eye is obtained, a moving image signal of the obtained moving image to the PDA device, a reception unit that receives a control signal from the PDA device during transmission of the moving image signal, and a control unit that controls the driving unit based on the received control signal.

Systems and methods are disclosed for assessing user physiology via eye tracking data. One method includes determining a plurality of visual assessments; determining, for each assessment of the plurality of visual assessments, a data schema, where at least one data schema is associated with more than one assessment of the plurality of visual assessments; storing the determined data schema; receiving user eye tracking data associated with a selected visual assessment of the plurality of visual assessments; determining, of the stored data schema(a), a selected stored data schema associated with the selected visual assessment; categorizing the received eye tracking data based on the selected stored data schema; computing quantitative data based on the categorized data and data related to one or more individuals other than the user; generating a report of user physiological function based on the computed quantitative data; and outputting the report to a web portal.

A system includes system housing, an eccentric radiation source, and a radiation sensor. The radiation produced by the eccentric radiation source can be collected by the radiation sensor to generate images of retinas for a patient. The system also includes a vision screening device connected with the eccentric radiation source and the radiation sensor via the system house that can control and synchronize actions for the eccentric radiation source and the radiation sensor. The vision screening device further analyzes the images generated by the radiation sensor via neural network algorithms to determine spherical error slopes, refractive errors, and recommendations for the patient.

An example method includes establishing a wireless link between a mobile device and an optical coherence tomography (OCT) test system, which includes a wireless interface. The method also includes executing an application on the mobile device to present a graphical user interface on a display of the mobile device. The method also includes sending instructions from the mobile device through the wireless link to activate the OCT test system to record OCT measurements for an OCT scan of at least one eye. The method also includes receiving OCT test data at the mobile device from the OCT test system through the wireless link. The OCT test data can represent the OCT measurements recorded by the OCT test system for the OCT scan of the at least one eye.

[Object] To provide an eye examination attachment, a control device, and an ophthalmic microscope system, by which an image of an eye to be examined that is suitable for observation can be provided. [Solving Means] An eye examination attachment according to the present technology includes a joining unit, a front optical system, and a communication unit. The joining unit is capable of being joined to an ophthalmic microscope. The front optical system includes a front lens capable of being placed in front of an eye to be examined. The communication unit sends information regarding the front optical system to an external device.

This application relates to a fundus oculi imaging device and a fundus oculi imaging method including the same. In one aspect, the fundus oculi imaging device includes a housing and a first imaging module that is installed to be movable in the housing and captures a retinal image of an examinee. The fundus oculi imaging device may also include a light irradiation module moving along with the first imaging module in the housing and irradiating light to an eye of the examinee. The fundus oculi imaging device may further include a second imaging module installed on a side of the housing and capturing an image of a cornea or a pupil, to which light is irradiated from the light irradiation module, of the examinee.

Objective refraction error measuring apparatuses are known. Once the measurement is done, there is no known method for confirming if the measurements are correct. Disclosed is an apparatus (200) wherein once the error is measured, the determined values of the error are used to set the characteristics of a tunable lens (230) so as to correct the error in the vision of the subject. The objective error is measured again while the subject viewing through the tunable lens so set. Objective refraction error is again measured. If the error measured is now within predefined limits, the first measurement is deemed correct and the values are out put so that glasses with those values may be prescribed to the subject.