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.

An electroactive device may include (1) an electroactive polymer element having a first surface and a second surface opposite the first surface, the electroactive polymer element comprising a nanovoided polymer material, (2) a primary electrode abutting the first surface of the electroactive polymer element, and (3) a secondary electrode abutting the second surface of the electroactive polymer element. The electroactive polymer element may be deformable from an initial state to a deformed state by application of an electrostatic field produced by a potential difference between the primary electrode and the secondary electrode. Various other devices, systems, and methods are also disclosed.

Systems and methods for allowing a user with no prior training to receive automated vision measurements without assistance of another individual by using subjective inputs from a user, which may be supplemented by a predictive method. The predictive method comprising artificial intelligence, patient data, user inputs, automated inputs from cameras and the like. The system may make use of a specific algorithm, decision tree, set of instructions, programming instructions, and the like, in order to provide vision measurements. The system combines programming instructions executed by a processor, output devices, input controls, and a plurality of corrective lenses to find a patient or user's vision measurements.

The utility model relates to an illumination device (100) for tear film lipid layer on ocular surface attached to an Ophthalmic Slit lamp Microscope, which comprises a ophthalmic slit lamp microscope. An illumination device (100) for tear film lipid layer is installed on the slit lamp microscope. The illumination device (100) is located at the lower part of the observer’s eye to illuminate the surface of the lower half of the eye surface angular membrane of the observer’s eye for observing the tear film lipid layer. The light emitted by the light source of the eye surface tear film lipid layer illumination device is inclined relative to the eye axis direction (10), and its inclination angle is ≥ 20°, which reduces the noise interference of transparent parts such as iris behind the cornea, reduces the noise, and improves the observation and imaging clarity of the eye surface lipid layer.

An optical measurement apparatus for an eyeball, the optical measurement apparatus includes: a light reflecting unit that reflects light in a direction where the light passes across an anterior chamber of the eyeball; and a switching unit that switches an incident position of the light to the light reflecting unit so as to inhibit the light from being moved from a state in which the light passes across the anterior chamber.

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.

Examination of the structure and function of blood vessels is an important means of monitoring the health of a subject. Such examination can be important for disease diagnoses, monitoring specific physiologies over the short- or long-term, and scientific research. This disclosure describes technology and various embodiments of a system and method for imaging blood vessels and the intra-vessel blood flow, using at least laser speckle contrast imaging, with high speed so as to provide a rapid estimate of vessel-related or blood flow-related parameters.

An ophthalmic system may be configured to image an eye of a patient. The system may include a housing, a lens, and a control assembly. The housing may extend along a central axis and between a proximal portion and a distal portion. The lens with a lens axis may be disposed in the distal portion of the housing. The control assembly may be disposed in the proximal portion of the housing. The control assembly may include and operatively connect a camera assembly having a camera axis and a lighting assembly. The lighting assembly may include a non-visible light source configured to focus the camera assembly and a visible light source configured to capture an image of the eye. The lens axis and the camera axis may be along the central axis of the housing.

An electronic SLO/OCT ophthalmoscope is equipped with a femtosecond (fs) laser for intra- or preretinal therapeutic use in the posterior segment of the eye. In one application the retina photoreceptor mosaic or Bruch's membrane is disrupted in such pattern that minimizes loss of visual functioning but reduces metabolic load of the outer retina. Using a beam splitter, one embodiment combines the SLO/OCT scanning beams with the therapeutic fs beam and an aiming beam. The therapeutic channel uses an independent x/y positioner and micro-deflector. Because the duty cycle is appropriate, a second embodiment can use the SLO/OCT scanners to also simultaneously scan a modulated therapeutic laser beam. A biometric OCT probe can be integrated in both configurations for focusing purpose. A method is disclosed to represent focus relevant tilting of the retina in the posterior pole. A derived apodizing “Stiles-Crawford” pupil weighting function is also independently useful for calculating light efficiency throughput of the anterior eye optics (cornea and iol/natural lens) in various circumstances.

An ophthalmologic imaging apparatus which captures a tomographic image of a subject's eye using interference light obtained by combining a return light from the subject's eye irradiated by measurement light and a reference light includes a control unit configured to perform (a) control, when a first imaging mode for capturing the tomographic image of the subject's eye is selected, to display the tomographic image as a first tomographic image of the subject's eye on a display unit and (b) control, when a second imaging mode different from the first imaging mode is selected, to display a second tomographic image of the subject's eye on the display unit, the second tomographic image generated using the tomographic image to increase intensity of the second tomographic image higher than that of the first tomographic image.