An eye-imaging apparatus including red, green, and blue light sources, one or more optical lenses, a light guide cable to transmit light from the light source, a one-chip color image sensor including a shutter, the color image sensor being operable to measure red, green, and blue light in the imaging path and transmit measured colored light in respective red, green, and blue channels. The red, green, and blue light sources are sequentially flashed in synchronization with the operation of the image sensor and the color image sensor captures red, green, and blue images in synchronization with the flashed color. The color image sensor transmits the colored images on respective color channels one at a time.

An eye-imaging apparatus including red, green, and blue light sources, one or more optical lenses, a light guide cable to transmit light from the light source, a one-chip color image sensor including a shutter, the color image sensor being operable to measure red, green, and blue light in the imaging path and transmit measured colored light in respective red, green, and blue channels. The red, green, and blue light sources are sequentially flashed in synchronization with the operation of the image sensor and the color image sensor captures red, green, and blue images in synchronization with the flashed color. The color image sensor transmits the colored images on respective color channels one at a time.

A method for correcting aberrations of a patient's eye with a customized contact lens, including determining an optimal XY location and an optimal angular orientation, a, for placing correction optics on the customized contact lens by using an optical instrument to measure XY offsets (?X, ?Y) and X, Y, Z tilt angles, (?.sub.x, ?.sub.y, ?), respectively, of a predicate contact lens while disposed on the patient's eye is disclosed. The predicate contact lens and the customized contact lens can be a scleral contact lens or a normal contact lens. The optical instrument can comprise a wavefront aberrometer and/or a corneal topographer. The correction optics include a wavefront-customized contact lens with a built-in, optimized wavefront-guided correction patch. The predicate contact lens can include three or more fiducial marks inside of the pupil, which can be used to determine the XY center of the predicate contact lens when placed on the patient's eye.

There is provided a glaucoma surgery visualization apparatus. The apparatus has a goniolens which is rotationally coupled to a novel scleral retention device. The apparatus allows for viewing of the irido-corneal angle structures of the eye and related surgical procedures. The scleral retention device uses vacuum to temporarily adhere the apparatus to the sclera. Surgical apertures allow for surgical access, while the goniolens can rotate within the scleral retention device to facilitate proper viewing of the irido-corneal angle structures before, during and after surgery. An optional light source serves to illuminate the field of viewing to further assist the surgeon during various procedures that involve the glaucoma surgery visualization apparatus.

There is provided a glaucoma surgery visualization apparatus. The apparatus has a goniolens which is rotationally coupled to a novel scleral retention device. The apparatus allows for viewing of the irido-corneal angle structures of the eye and related surgical procedures. The scleral retention device uses vacuum to temporarily adhere the apparatus to the sclera. Surgical apertures allow for surgical access, while the goniolens can rotate within the scleral retention device to facilitate proper viewing of the irido-corneal angle structures before, during and after surgery. An optional light source serves to illuminate the field of viewing to further assist the surgeon during various procedures that involve the glaucoma surgery visualization apparatus.

A detection device for detecting an eyeball includes a frame element, a transceiver, and a contact lens element. The transceiver is disposed on the frame element. The transceiver transmits a first RF (Radio Frequency) signal. The contact lens element includes a resonator. The resonator converts the first RF signal into a first ultrasonic signal. The first ultrasonic signal is transmitted to the eyeball. The resonator converts a second ultrasonic signal from the eyeball into a second RF signal. The transceiver receives the second RF signal.

A detection device for detecting an eyeball includes a frame element, a transceiver, and a contact lens element. The transceiver is disposed on the frame element. The transceiver transmits a first RF (Radio Frequency) signal. The contact lens element includes a resonator. The resonator converts the first RF signal into a first ultrasonic signal. The first ultrasonic signal is transmitted to the eyeball. The resonator converts a second ultrasonic signal from the eyeball into a second RF signal. The transceiver receives the second RF signal.

A contact lens contains an inward pointing camera, which will be referred to as a retinal camera since it images light reflected from the retina. These can be reflections of physical features of the retina, of images of an external scene imaged by the eye onto the retina, or images projected onto the retina for example from small projectors contained in the contact lens (femtoprojectors). The field of view (FOV) of the retinal camera is sufficiently large that these reflections can be tracked relative to each other and/or relative to their position within the retinal camera's FOV. This information can be processed to track eye gaze and movement relative to the outside world, to align images from the femtoprojector with the eye and/or to align images from the femtoprojector with images from the outside world, among other tasks.

Certain aspects of the present disclosure provide for in-situ intraocular lens (IOL) tilt determination and for providing information associated with the angle of IOL tilt intraoperatively. An example method includes imaging an IOL within a patient's eye via an ophthalmic imaging device, in-situ, after implantation of the IOL within the patient's eye; processing the image of the IOL within the patient's eye to determine an angle of tilt of the IOL; and outputting information associated with the angle of IOL tilt to a user interface.

Disclosed is a method for defining a structure of an annular light guide device, for a fundus camera. An initial cross section of a wall of a light guide device is created in predefined way. A hollow cavity for a light source is defined within this cross section. The surface of the hollow cavity is an ellipsoid. Using a ray tracing software tool, the initial cross section is refined to maximise total internal reflection of the light from the source within the cross section to achieve most efficient light guide device. Once the final cross section is created, it is rotated by 360 degrees on a predefined axis to obtain final structure of the light guide device. The method is developed for creating very small light guide as required in a fundus camera especially for neonatal applications.