The disclosure provides an optical apparatus, comprising: a source of wavelength tunable laser light or a broad band partially coherent light source, a first beam splitter receiving the light and directing a part of the light to a sample arm as illumination light and another part of the light to a reference arm as reference light, the sample arm comprising: means for directing the illumination light via a first beam splitter as a light spot to a sample, wherein an image of the light spot is reflected from the sample, a focus tunable optics receiving the image of the light spot from the sample after being transmitted through the first beam splitter and focusing the image to a detection plane, wherein a photodetector unit is adapted for receiving the recombined light from the sample arm and the reference arm. Preferably, a computing unit is connected to the photodetector unit, wherein the computing unit is configured to digitize the signal and use digital techniques to calculate wavefront error at different planes, e.g. in the human eye.

An ophthalmologic apparatus includes: an objective lens that faces a subject's eye; a first illumination optical system that irradiates a cornea of the subject's eye with illumination light; and a corneal measurement optical system having an imaging element that takes an image of a corneal reflection light, which is a reflection of the illumination light, through the objective lens, and outputs an imaging signal. The corneal measurement optical system includes a first mirror arranged near the objective lens and a second mirror arranged near the imaging element. The first and second mirrors and are configured such that the corneal reflection light that enters and is reflected from the first mirror, and then enters and is reflected from the second mirror exits toward an incident side from which the corneal reflection light enters a reflection surface of the first mirror.

An exemplary system provides a display and a camera on the same side of a device. In some examples, instead of providing a stimulus with a flash of light, the system may utilize the user's eyelids to dark-adapt the pupil and mediate the stimulus using ambient light and/or the light from a display. Use of a front-facing display and front-facing camera further allows the disclosed system to control the ambient lighting conditions during image capture to ensure that additional pupillary stimulation does not occur while measuring the primary pupil response.

Eye cups and retinal imaging systems including an eye cup are described. In an embodiment, the eye cup is shaped to couple with an eyepiece lens assembly. In an embodiment, the eye cup includes a concave socket shaped to couple to a periorbital region of an eye, the concave socket defining a viewing aperture positioned to align with a pupil of the eye along a longitudinal axis of the viewing aperture when the concave socket is coupled to the periorbital region; and a flange extending from the concave socket away from the longitudinal axis and shaped to couple with a lateral margin of the periorbital region when the concave socket is coupled to the periorbital region. In an embodiment, an outer edge of the flange extends farther from the longitudinal axis than an outer edge of portion of the concave socket.

The present invention is directed to a medical imaging binocular indirect ophthalmoscope with onboard sensor array and computational processing unit, enabling simultaneous or time-delayed viewing and collaborative review of photographs or videos from an eye examination. The invention also claims a method for photographing and integrating information associated with the images, videos, or other data generated from the eye examination.

The present invention is directed to a medical imaging binocular indirect ophthalmoscope with onboard sensor array and computational processing unit, enabling simultaneous or time-delayed viewing and collaborative review of photographs or videos from an eye examination. The invention also claims a method for photographing and integrating information associated with the images, videos, or other data generated from the eye examination.

A reflectometry instrument includes a light source for emitting an illumination beam that illuminates the macula. A portion of the illumination beam is reflected from the macula and forms a detection beam. The detection beam is indicative of macular pigment in the macula. The instrument also includes a first mirror for reflecting the illumination beam toward the macula and for reflecting the detection beam from the macula. The instrument is configured so that the illumination beam and the detection beam remain separated between the macula and the first mirror.

A common beam scanning retinal imaging system comprises: a light source module (1), an adaptive optics module (2), a beam scanning module (3), a small field-of-view relay module (5), a large field-of-view relay module (6), a sight beacon module (9), a pupil monitoring module (7), a detection module (8), a control module (10) and an output module (11). The system can perform real-time correction of human eye aberration by adaptive optics technology, and realize the confocal scanning imaging function in a large field of view and the adaptive optics high-resolution imaging function in a small field of view simultaneously by the common beam synchronous scanning configuration combined with the two relay optical path structures for both the small field of view and the large field of view. The system can not only observe disease lesions in a wide range on the retina by the large field-of-view imaging, but also observe fine structures of the lesions by the small field-of-view high-resolution imaging. A variety of imaging images are acquired by common path optical beam scanning to meet the needs of different application scenes, which greatly expands the application range of the existing confocal imaging equipment.

An ophthalmologic processing apparatus according to embodiments acquires data of a fundus of a subject's eye optically. The ophthalmologic apparatus includes a fixation system, an image acquisition unit, a specifying unit, and a determination unit. The fixation system is configured to project fixation light onto an eye of a subject. The image acquisition unit is configured to acquire an image of the fundus of the subject's eye in a state where the fixation light is projected by the fixation system. The specifying unit is configured to analyze the image acquired by the image acquisition unit to specify an image region corresponding to a predetermined site of the fundus. The determination unit is configured to determine whether or not the image region specified by the specifying unit is included within a predetermined range in the image acquired by the image acquisition unit.

A line-of-sight measurement device includes: an imaging unit that images a face of a subject; a light illumination unit that illuminates light to an eye of the subject; a camera coordinate system eyeball center coordinate calculation unit that estimates coordinates of an eyeball center, from a face image imaged by the imaging unit; a pupil center calculation unit that estimates coordinates of an apparent pupil center, from a pupil center position on the face image; an eyeball position orientation estimation unit that calculates an optical axis vector toward the pupil center from the eyeball center on the basis of the coordinates of the eyeball center and the apparent pupil center; a corneal reflection image calculation unit that obtains coordinates of a corneal reflection image on the basis of the coordinates of the eyeball center, the optical axis vector, and a predetermined eyeball model; and an image coordinate calculation unit that estimates image coordinates of a corneal reflection image on the face image, from the coordinates of the corneal reflection image.