A portable intelligent multi-function phoropter is disclosed. The phoropter comprises a casing, a plurality of control elements, two adjustable eyepiece modules, a plurality of micro motors, a liquid crystal display module, a control module and a power supply module. The casing of the present invention is small so that the overall volume is small, and it is convenient to carry and use. The present invention has many test patterns, so different vision tests can be performed. With the combination of convex lens and concave lens and the application of existing electronic components, the overall price is reduced. The invention satisfies the market demand for the phoropter.

A method for testing the eyes of a test person with the aid of a vision testing system as well as to a vision testing system, comprising a first measuring device, a second topographic measuring device, a third refractive measuring device and a processing means, a central axial length (L.sub.Z) and a peripheral axial length (L.sub.P) of an eye of the test person being measured with the aid of said first measuring device, a curvature of the cornea of the eye being measured with the aid of said second measuring device, a refractive property of the eye being measured with the aid of said third measuring device, measurement data of the measurements of the first, second and third measuring device being processed with the aid of said processing means, said processing means outputting the measurement data.

Systems and methods for tracking eye movement during a diagnostic procedure include an eye tracker capturing images of an eye, and a control processor configured to detect an eye position and orientation in each of the images, determine an eye fixation position and orientation relative to an optical axis of the eye tracker, estimate eye fixation parameters based at least in part on the determined eye fixation position and orientation, and track the eye position and orientation by analyzing the images to determine the eye position and orientation relative to the eye fixation parameters. The eye fixation parameters may comprise a reference position and orientation of the eye when fixated. A histogram is constructed of detected eye positions and orientations and analyzed to determine an eye fixation position and orientation.

Systems and methods for tracking eye movement during a diagnostic procedure include an eye tracker capturing images of an eye, and a control processor configured to detect an eye position and orientation in each of the images, determine an eye fixation position and orientation relative to an optical axis of the eye tracker, estimate eye fixation parameters based at least in part on the determined eye fixation position and orientation, and track the eye position and orientation by analyzing the images to determine the eye position and orientation relative to the eye fixation parameters. The eye fixation parameters may comprise a reference position and orientation of the eye when fixated. A histogram is constructed of detected eye positions and orientations and analyzed to determine an eye fixation position and orientation.

The present invention provides a system and a method for measuring ocular motility of a patient. The system comprises a display unit capable of presenting at least one target; a blocking unit configured and operable to selectively block/unblock at least one target in a field of view of at least one eye of the patient; a camera unit comprising at least one imaging element configured and operable to generate at least two image data indicative of at least one eye condition; and a processing unit connected to the blocking unit, to the display unit and to the camera unit, the processing unit being configured for performing the following steps: (a) displaying at least one target, for at least one eye (b) receiving image data indicative of at least one eye's condition from the camera unit, (c) controlling the blocking unit to block/unblock at least one target in the field of view of at least one eye of the patient, (d) detecting a change in at least one eye's condition, (e) displacing the target for at least one eye; and repeating steps (a)-(e) until no change in the eye's condition is measured to thereby determine at least one ocular motility parameter.

The present invention provides a system and a method for measuring ocular motility of a patient. The system comprises a display unit capable of presenting at least one target; a blocking unit configured and operable to selectively block/unblock at least one target in a field of view of at least one eye of the patient; a camera unit comprising at least one imaging element configured and operable to generate at least two image data indicative of at least one eye condition; and a processing unit connected to the blocking unit, to the display unit and to the camera unit, the processing unit being configured for performing the following steps: (a) displaying at least one target, for at least one eye (b) receiving image data indicative of at least one eye's condition from the camera unit, (c) controlling the blocking unit to block/unblock at least one target in the field of view of at least one eye of the patient, (d) detecting a change in at least one eye's condition, (e) displacing the target for at least one eye; and repeating steps (a)-(e) until no change in the eye's condition is measured to thereby determine at least one ocular motility parameter.

An ophthalmic apparatus may include a first light source configured to output a first light, a second light source configured to output a second light, a first interferometer configured to execute an examination of a first range using first interference light, and a second interferometer configured to execute an examination of a second range using second interference light, the second range being different from the first range. A central wavelength of the first light may be different from a central wavelength of the second light. A first optical path and a second optical path may at least partially overlap with each other, the first optical path being an optical path of the first light, and the second optical path being an optical path of the second light. The examination of the first range and the examination of the second range may be able to be executed simultaneously.

An ophthalmic apparatus may include a first light source configured to output a first light, a second light source configured to output a second light, a first interferometer configured to execute an examination of a first range using first interference light, and a second interferometer configured to execute an examination of a second range using second interference light, the second range being different from the first range. A central wavelength of the first light may be different from a central wavelength of the second light. A first optical path and a second optical path may at least partially overlap with each other, the first optical path being an optical path of the first light, and the second optical path being an optical path of the second light. The examination of the first range and the examination of the second range may be able to be executed simultaneously.

A method of displaying a colorized luma image includes illuminating tissue under observation with illumination light and excitation light. A color image from reflectance of the illumination light and a fluorescence image produced by illuminating the tissue under observation with the excitation light are simultaneously detected at an image sensor to produce image data comprising both color image data and fluorescence image data. A luma image from the detected color image data is computed and the luma image is colorized based on the detected fluorescence image data. The colorized luma image is then displayed.

A method of displaying a colorized luma image includes illuminating tissue under observation with illumination light and excitation light. A color image from reflectance of the illumination light and a fluorescence image produced by illuminating the tissue under observation with the excitation light are simultaneously detected at an image sensor to produce image data comprising both color image data and fluorescence image data. A luma image from the detected color image data is computed and the luma image is colorized based on the detected fluorescence image data. The colorized luma image is then displayed.