Handhold equipment for inspecting vision and method

Abstract

The invention discloses handhold equipment for inspecting vision and a method. The handhold equipment for inspecting the vision comprises a storage device, a display device, a first instruction receiving device, a second instruction receiving device and a control device, wherein the storage device is used for storing a vision table and a corresponding relation of display size of a vision icon element in the vision table and an arm length value; the first instruction receiving device is used for receiving the arm length value input by a user and selection of the user to the vision icon element; the second instruction receiving device is used for receiving feedback information of the user, wherein the feedback information is the description to the selected vision icon element; and the control device is used for calling the corresponding vision table according to the arm length value to display on the display device, and comparing the feedback information with the selected vision icon element to obtain a vision inspection result. By adopting the handhold equipment, the trouble of testing in a hospital or an eyeglasses store is eliminated, so that a user can conveniently test vision anytime.

Description

technical field [0001] The invention relates to a hand-held device and method for checking eyesight. Background technique [0002] With the increasing popularity of electronic products such as computers and televisions, people spend more and more time in front of the screen, and health problems, especially vision problems, are becoming more and more prominent. Usually users will have their eyesight checked in a hospital or optical shop. [0003] The currently used eye chart mainly checks the central vision, that is, checks the central visual acuity in the macular area of ​​the retina, so that the preliminary situation of visual function can be easily and quickly understood, which is of great significance for the clinical diagnosis and treatment of eye diseases. [0004] Visual acuity checks are generally divided into two categories: distance vision and near vision. The distance vision mostly adopts the international standard eye chart, which is composed of 12 rows of "E" ch...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the inspection environment of the vision inspection is relatively high and the user cannot perform the vision inspection at any time, and provide a vision inspection system that has low requirements for the inspection environment and allows the user to perform the vision inspection at any time. handheld device and method

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