Human eye Kappa angle measuring device and human eye Kappa angle measuring method

Abstract

The invention provides a human eye Kappa angle measuring device and a human eye Kappa angle measuring method. The human eye Kappa angle measuring device comprises a light source and a pupil imaging lens for receiving pupil imaging. The measuring device further comprises an area array light energy sensor for receiving incident parallel light reflected by the cornea and a movable sighting mark mechanism for observation; a second semi-transparent semi-reflecting mirror is further arranged between the movable sighting mark mechanism and the human eye; a sighting mark imaging lens set is further arranged between the movable sighting mark mechanism and the second semi-transparent semi-reflecting mirror; the movable sighting mark mechanism is composed of a movable mechanism and a sighting mark capable of moving transversely and longitudinally along the movable mechanism; and the vertex position of the cornea is adjusted to be positioned on the light path from the pupil imaging lens to the human eye through movement of the position of the sighting mark on the movable sighting mark mechanism, and finally the human eye Kappa angle is obtained through calculation. The human eye Kappa angle measuring device is simple, easy to operate and high in accuracy.

Description

technical field [0001] The invention relates to the technical field of treatment for the disadvantaged, in particular to a human eye Kappa angle measurement device and a Kappa angle measurement method. Background technique [0002] In ophthalmology, the Kappa angle refers to the angle between the visual axis gaze target and the macular fovea line and the optical axis assumed to exist. The existing Kappa angle detection is often cumbersome, and the detection accuracy of the Kappa angle is not high. It is unfavorable for the extensive measurement of the Kappa angle of the human eye, so there is an urgent need for an easy-to-operate detection device and method for the Kappa angle of the human eye. Contents of the invention [0003] In order to solve the technical defects in the prior art, the invention provides a human eye Kappa angle measuring device and a Kappa angle measuring method. [0004] The technical solution adopted by the present invention is: a human eye Kappa an...

AI Technical Summary

Problems solved by technology

[0002]In ophthalmology, the Kappa angle refers to the angle between the line between the visual axis gaze target and the fovea and the optical axis assumed to exist. The existing Kappa angle Detection is often cumbersome, and the detection accuracy of Kappa angle is not high, which is not conducive to the extensive measurement of human eye Kappa angle, so there is an urgent need for an easy-to-operate human eye Kappa angle detection device and detection method

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