103 results about "Congenital strabismus" patented technology

The invention discloses a strabismus bias phase center position multi-beam satellite-bone synthetic aperture radar (SAR) imaging method. The method comprises the following steps: corresponding phase compensation is conducted to echo data received by beams of each position by utilizing an azimuth phase compensation function H1, n (f, t); the Doppler frequency spectrum of the echo data after the phase compensation are rebuilt in a distance-Doppler domain by utilizing a position reconstruction filter group P (fa), and Doppler course of a target echo signal is recovered by utilizing a spectrum reduction function H2 (fr, t); and focus imaging is conducted to the echo data by utilizing an improved random multiple access (RMA) algorithm. According to the strabismus bias phase center position multi-beam satellite-bone SAR imaging method, the Doppler course of the echo signal is adjusted through position preprocessing operation, the problem that sampling rate of position signals is insufficient is solved, the Doppler course is rebuilt through strabismus position multi-beam signals, and the problem that position multichannel is not sampled uniformly is solved. Long-distance migration correction and focus imaging are achieved eventually through the RMA algorithm which is based on improved Stolt interpolation operation.

The invention relates to a centrometer, which comprises a bracket for wearing, a control unit and a display device, wherein the display device is arranged on the bracket; and the control unit is electrically connected with the display device, and is used for controlling the display device to display the shape and position of a pattern for visual detection and to measure visual data. According to the centrometer, a visual detection image is displayed by using a display screen, and the shape and position of the visual detection image are controlled by using the control unit, so that an interpupillary distance can be measured accurately, and the centrometer is very safe for human eyes. Moreover, the centrometer can also be used for rapidly and accurately measuring the interpupillary distance when double eyes watch along a plurality of directions, the interpupillary distance and the like when a single eye watches along a plurality of directions, and the relative position relation of the left eye or right eye vision center of binocular vision or mono-vision. The centrometer can be further used for measuring the interpupillary distance and the position relation thereof conveniently during fitting of double-light or multi-light progressive addition lenses; and moreover, the centrometer is used for measuring the stress situation of ciliary muscle on the aspects of ophthalmology medicine and research and assisting in correcting strabismus.

The invention discloses an intelligent visual training instrument. According to the intelligent visual training instrument, automatic equipment, App software and a cloud server are used for physical training of eyes. The automatic equipment comprises a mechanical structure, an electronic circuit and embedded software. The App software comprises functional software for training items and control terminal software. The cloud server has the information storage and operation function and is used for storing information of users and equipment operators, managing permissions of the operators, storing training results, and working out a formula. After the control terminal software sends an operator login message to the server, the function interface is shown. Users and instruments are selected, connection is achieved through Bluetooth, and the equipment is controlled to select the training items. The equipment transmits results to the control terminal software through Bluetooth after training is completed, and the results are uploaded to the cloud server through the control terminal software. According to the intelligent visual training instrument, automatic control, intellectualization and data storage of various physical training items for the eyes are achieved, and the intelligent visual training instrument has great practical significance for preventing and treating myopia, hyperopia, strabismus, amblyopia, presbyopia and asthenopia.