A guiding fixation method applied to an eye examination device is disclosed. The eye examination device at least includes a first default light source and a second default light source. The guiding fixation method includes steps of: (a) disposing at least one dummy light source between the first default light source and the second default light source; (b) when a distance between the eye examination device and an eye changes, the dummy light source emitting light to guide the eye to gaze at it; (c) when the distance between the eye examination device and the eye stops changing, switching to the first default light source and/or the second default light source to emit light to guide the eye to gaze at it.

A dark adapted perimetry method includes the steps of at least partially photobleaching an eye, selectively illuminating a plurality of stimulus target light sources at a predetermined luminance, and recording a response data including triggering an input device in response to the selective illumination. The plurality of stimulus target light sources define a stimulus target array positioned within a concave array guide. Each stimulus target light source is illuminated by a respective LED complex light source.

A system is disclosed for capturing diagnostic eye information. The system includes at least one energy source for directing electromagnetic energy into an eye of a subject, a plurality of perception units, each perception unit being associated with an associated position in the visual field of the eye, and each perception unit being adapted to capture refractive information from the eye responsive to the electromagnetic energy, and a processing system for determining refractive error information associated with each position of each perception unit in the visual field of the eye, and for determining refractive error composite information regarding the eye responsive to the refractive error information associated with each perception unit and independent of a direction of gaze of the eye.

This present invention comprises a Galilean tele-microscope lens assembly configured to attach to the front of a binocular indirect ophthalmoscope (BIO) either permanently or by means of a clip or other suitable detachable mechanism, and to enhance an image of a patient's ocular fundus produced by a condensing lens hand-held by the examiner, at their arm's length, in front of the patient's eye. The lens assembly of the present invention magnifies the examiner's view of the hand-held condensing lens itself, and thus magnifies the fundus image produced by the hand-held condensing lens, enabling improved appreciation of finer details in an examination. In addition to improving BIO examinations in general, the present invention is especially advantageous for patients who have disabilities, are wheelchair bound, are children, or are patients of “mission” based ophthalmoscopy services provided in developing, “emerging economy” countries where other examination equipment may not be available.

A device for illuminating a posterior segment of an eye may include multiple channels. Each of the channels may include multiple illumination paths such as a first region illumination path, and a second region illumination path. The first region illumination path and the second region illumination path may be illuminated at different times such that a first region and a second region may be imaged without interference from a non-illuminated illumination path.

There is provided an imaging device (100) for imaging a target, the imaging device (100) comprising a Scheimpflug imaging system (102) and an Optical Coherence Tomography, OCT, imaging system (104), where the Scheimpflug imaging system (102) comprises a camera (112) and a lens system (108), and the OCT imaging system (104) comprises an imaging optical element and a detector (122). The imaging device (100) further comprises a light source (106) adapted to provide a light beam suitable for operation of the Scheimpflug imaging system (102) and the OCT imaging system (104). The lens system (108) of the Scheimpflug imaging (102) system is configured to provide an adjustable focal length.

An automated method for testing peripheral and expanded visual fields on limited field of view head-mounted device. The method has a fixation point that is placed in multiple locations of the field of view to test stimuli points that would be outside of the field of view of a head-mounted device if the fixation point were in the center. Stimuli points are grouped together and are associated with fixation points. Each stimulus appears individually on an opposite side of the fixation point in the field of view. The stimuli points may be static or dynamic. The method is applied as visual field diagnostic tool for Ptosis disorder, Esterman test, or any expanded peripheral Visual Field test.

Disclosed is an eye examination apparatus for use with a smartphone. The eye examination apparatus has a body having a first eye opening and a second eye opening for a user to see into the eye examination apparatus using two eyes. In accordance with an embodiment of the disclosure, the eye examination apparatus has a coupling for receiving a smartphone having a display and a camera and for holding the smartphone in a predefined position in relation to the body, such that the camera of the smartphone is positioned to acquire ophthalmic images through the first eye opening, and the display of the smartphone is viewable through the second eye opening. In this manner, it is possible for the user to have an eye examination performed remotely outside of a clinician's office without specialized equipment by instead using their own smartphone.

The disclosed embodiments are generally directed to optical systems. The optical systems may include a proximal lens that may transmit light toward an eye of a user. The optical systems may also include a distal lens that may, in combination with the proximal lens, correct for at least a portion of a refractive error of the eye of the user. The optical systems may further include a selective transmission interface. The selective transmission interface may couple the proximal lens to the distal lens, transmits light having a selected property, and does not transmit light that does not have the selected property. The optical system can also include an accommodative lens, such as a liquid lens. Various other methods, systems, and computer-readable media are also disclosed.

The ophthalmologic microscope has an illumination device for projecting light onto an eye to be observed and a microscope device with a camera to view the eye. The illumination device generates pulsed light and is slaved to the frame rate of the camera, which allows to run the camera in free-running mode for achieving a high frame rate. The light is pulsed at least at twice the frame rate of the camera to reduce flicker. The illumination device uses an array of micro-mirrors as spatial light modulator, and the mirrors are controlled for a balanced deflection over the frame cycles.