An example device is configured to capture an image of an eye. The device includes a camera configured to capture the image of the eye. The device also includes: a first base configured to be moved along a first axis to position the camera to capture the image of the eye; a second base configured to be moved along a second axis to position the camera to capture the image of the eye; and a third base configured to be moved along a third axis to position the camera to capture the image of the eye.

Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.

The invention relates to a device for measuring the speed of blood in a blood vessel of the eye. Said device includes: a light source (5), two detectors provided with input diaphragms (36, 46) for receiving two light beams backscattered by a blood vessel, an optical system including a Dove prism (70) through which the source beam and backscattered beams pass and which is rotatably adjustable about an axis parallel to the source beam passing therethrough, and a focusing system (62) capable of forming the image of a blood vessel on the input diaphragms, a processor capable of processing the signals from the detectors, and an opitcal element (52) that can be inserted during the device adjustment phase so as to convert the light spot, provided by the light source, into a line coplanar with the source beam and the backscattered beams.

An ophthalmic imaging apparatus includes a first splitting unit configured to split return light from a subject irradiated with measurement light in two directions, first and second light receiving units configured to receive the first and second light beams obtained by the first splitting unit through first and second apertures disposed in respective optical paths of the first and second light beams, respectively, a generation unit configured to generate an image in accordance with light reception signals from the first and second light receiving units; and a moving unit configured to move the first and second apertures in a plane perpendicular to an optical axis. The moving unit moves the first and second apertures independently.

A medical ophthalmic system uses a patient-specific face mask to establish a predefined alignment between the ophthalmic system and an eye of a patient. The patient-specific face mask may optionally provide a light proof enclosure for the eye. The face mask may be coupled directly to an ophthalmic device, or its housing/enclosure, of the ophthalmic system. The face mask may be 3D printed based on a 3D model of the patient's face.

Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.

An optical imaging system includes a first lens system housed in a body of a mobile telecommunication device, the first lens system having a first optical axis, a first entrance pupil fixed in space in a reference plane associated with said body, and a first focal length; and an optical telescope providing a diffraction-limited imaging within a spectral range from at least 486 nm to at least 656 nm. The optical imaging system is configured to image, when the optical telescope is inserted between the first lens system and an entrance pupil of a visual system of an eye (EPE), the EPE onto the first entrance pupil and vice versa with a substantially unit magnification.

The present invention provides a retinoscope comprising: a refractor that has a lens module therein and is located at a predetermined distance from eyes of a person to be tested such that a line of sight of the person to be tested passes through an optometry window, wherein the lens module is configured such that a plurality of lenses necessary for correction are selectively located on the optometry window in order to obtain a correction value for correcting the eyes of the person to be tested; a main body for supporting the refractor; a retinoscope unit coupled to one surface of the main body and maintained at a predetermined distance from the refractor, wherein the retinoscope unit radiates light beams to the eyes of the person to be tested so as to be close to the line of sight of the person to be tested and rotates or reciprocates the light beams when receiving a signal of an operating unit; and the operating unit that operates driving of the refractor and the retinoscope unit.

According to one embodiment, an ophthalmologic apparatus includes an optical system, a support, a drive unit, an alignment optical system, two or more imaging units, an analyzer, and a controller. The optical system acquires data of an eye. The support is configured to support the face of a subject. The drive unit moves the optical system and the support relative to each other. The alignment optical system projects an indicator for performing alignment of the optical system with respect to the eye onto the anterior segment of the eye. The imaging units photograph the anterior segment of the eye, onto which the indicator is being projected, substantially simultaneously from different directions. The analyzer analyzes two or more photography images captured substantially simultaneously by the imaging units to specify the position of the eye. The controller controls the drive unit based on the position specified by the analyzer.

Apparatus and methods for eye tracking using an optical coherence tomography (OCT) device are disclosed. Such eye tracking may be performed by using information about the shape of the cornea and the corneal apex or using the iris/pupil border obtained using the OCT device.