The ophthalmic workstation comprises a table having a top surface, a base unit mounted to the table, a microscope, and a headrest. The base unit includes an X-displacement stage, a Z-displacement stage, and a platform mounted to the X-displacement stage and the Z-displacement stage. The microscope is mounted to the platform. The table comprises an opening in its top surface. An embedded section of the base unit is located, at least in part, in this recess or opening. The headrest is mounted to a headrest section of the base unit, which projects laterally over an edge of the table.

A binocular scanning laser ophthalmoscope (SLO) is used to track the fixational eye movement of each of the eyes of a subject. The binocular SLO may include right eye optics for imaging a portion of the retina of the right eye and left eye optics for imaging a portion of the retina of the left eye. Shifts in the imaged portion of the retina with respect to a reference image of the retina may be used to measure and track eye movement. The right eye optics and left eye optics may be separate imaging paths, each with its own bi-directional MEMS scanning mirror and Keplerian telescope. The use of the MEMS scanning mirrors minimizes the size and weight of the binocular SLO.

The present disclosure generally relates to optical systems for surgical procedures, and more particularly, to optical relay systems for visualization systems used during ophthalmic microsurgical procedures. The optical systems described herein provide improved ergonomics for surgeons, as such systems facilitate a low-height microscope camera that enables a surgeon to see over the camera to a display screen or other monitor placed in an ergonomically advantageous position for ophthalmic procedures. Such optical systems also provide improved performance, as the total magnification of the optical head may be split between multiple lens barrels, thereby creating high resolution images that enables surgeons to see ophthalmic anatomies more clearly. Even further, such optical systems proffer improved manufacturability, with reduced weight and manufacturing cost, as the lens barrels may have fixed focal lengths for utilization with digital magnification mechanisms.

A stereoscopic imaging platform includes a stereoscopic camera configured to record left and right images of a target site. A robotic arm is operatively connected to the stereoscopic camera, the robotic arm being adapted to selectively move the stereoscopic camera relative to the target. The stereoscopic camera includes a lens assembly having at least one lens and defining a working distance. The lens assembly has at least one focus motor adapted to move the at least one lens to selectively vary the working distance. A controller is adapted to selectively execute one or more automatic focusing modes for the stereoscopic camera. The controller has a processor and tangible, non-transitory memory on which instructions are recorded. The automatic focusing modes include a target locking mode. The target locking mode is adapted to maintain a focus of the at least one stereoscopic image while the robotic arm is moving the stereoscopic camera.

An ophthalmic microscope includes an observation system configured to observe an eye to be examined, the observation system including an objective lens and a pair of observation optical paths, an imaging system capable of stereoscopically imaging respective observation lights of the eye to be examined from the observation optical paths, and a mode switching unit capable of selectively switching among a first mode for acquiring a first image obtained by stereoscopically imaging the observation lights from both the observation optical paths using the imaging system, a second mode for acquiring only a second image obtained by imaging the observation light from one of the observation optical paths using the imaging system, and a third mode for acquiring only a third image obtained by imaging the observation light from the other of the observation optical paths using the imaging system.

An ophthalmic apparatus includes an objective lens, a first illumination optical system arranged approximately coaxially with an optical axis of the objective lens and configured to be capable of irradiating first illumination light onto an eye to be examined through the objective lens, a second illumination optical system arranged so as to be eccentric to the optical axis of the objective lens and configured to be capable of irradiating second illumination light onto the eye to be examined through the objective lens, a left-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a left-eye eyepiece or a left-eye imaging element, and a right-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a right-eye eyepiece or a right-eye imaging element. The second illumination optical system is capable of changing an incident angle of a principal ray of the second illumination light relative to the eye to be examined.

A visualization system includes a housing assembly having a head unit configured to be at least partially directed towards a target site. An optical coherence tomography (OCT) module and a stereoscopic camera are located in the housing assembly. A controller is in communication with the OCT module and the stereoscopic camera. The controller is adapted to acquire left OCT data and right OCT data of the target site, via the OCT module, and synchronously acquire left camera data and right camera data of the target site, via the stereoscopic camera. The controller is adapted to generate volume-rendered images, including: first and second OCT images based on the OCT data and first and second camera images based on the camera data. The first and second OCT images and the first and second camera images have matching parallax.

A system and method for multimodal image acquisition and image visualization, including a surgical-microscopic system with an optical unit and an image sensor and designed for acquiring a time-resolved image signal of a selected field of view of a sample. The system includes an OCT system, which is designed to acquire a time-resolved OCT signal of the selected field of view, a display means designed for the time-resolved display of image data and a control unit. The control unit is configured to ascertain video image data corresponding to the acquired image signal and to present them on the display means, to ascertain a time-resolved OCT image, corresponding at least to a portion of the presented video image data, on the basis of the acquired OCT signal, and to present the OCT image on the display means at the position of the portion.

Improved optical coherence tomography systems and methods to measure thickness of the retina are presented. The systems may be compact, handheld, provide in-home monitoring, allow the patient to measure himself or herself, and be robust enough to be dropped while still measuring the retina reliably.

Optical diffraction tomography microscope (2) comprising an illumination system (4) configured for transmitting a sample beam through a sample observation zone, a detection system (8) comprising at least one image sensor (54), and a wave collection system (6) comprising a lens (16) downstream of the sample observation zone configured for directing the sample beam towards the at least one image sensor.