Infant Vision Test Device

A vision test, infant technology, applied in retinoscopes, refractometers, etc., can solve the problems of increased labor costs, inaccurate measurement results, etc., and achieve the effect of improving the efficiency of vision testing

Active Publication Date: 2018-05-22
HANVON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when using the above-mentioned vision test method to test the eyesight of the testee, an additional observer is usually needed to observe the sight behavior of the testee
Artificial observation not only increases labor costs, but also has a certain degree of subjectivity, which makes the measurement results inaccurate

Method used

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Examples

Experimental program
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Embodiment Construction

[0036] Hereinafter, specific embodiments of the present invention will be described in detail in conjunction with the accompanying drawings.

[0037] figure 1 It is a schematic diagram of module connection of the infant vision testing device in the present invention. In this embodiment, the vision test device for infants is mainly applied to infants. Such as figure 1 As shown, the infant vision testing device of the present invention includes a display unit, a camera unit, a processing unit 10, and an unillustrated installation board.

[0038] The display unit includes a left display screen 21 and a right display screen 22 . The camera unit includes a camera 30 and light sources, and the light sources include a left light source 41 and a right light source 42 .

[0039] In this embodiment, the installation board is a planar plate-shaped component, and the left display screen 21 and the right display screen 22, the camera 30, the left light source 41 and the right light sou...

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PUM

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Abstract

The invention provides a children visual acuity testing device and a testing method, used for detecting visual acuity of a tested object. The children visual acuity testing device comprises a display unit, an image pickup unit and a processing unit (10), wherein the display unit is used for displaying a testing pattern; the image pickup unit is used for shooting the testing image observed by the tested object so as to acquire a shot image; and the processing unit is connected to and is used for controlling the display unit and the image pickup unit, and the processing unit is used for storing the shot image and for computing and analyzing so as to obtain the visual acuity of the tested object. The testing device and the testing method disclosed by the invention, by automatically shooting the face of the tested object by virtue of the image pickup unit and by analyzing eye actions, can improve visual acuity testing efficiency, and moreover the visual acuity testing can be more objective.

Description

technical field [0001] The invention relates to a vision test device and a test method, in particular to an infant vision test device and a test method for infants. Background technique [0002] At present, when the eyesight test is performed on the subjects, especially infants, due to difficulties in communicating and cooperating with infants, preferential looking is generally used, such as using black and white bars of different widths as visual stimuli, Compared with the uniform gray target, by observing the gaze direction of the testee to judge whether the testee finds the bar, the visual acuity analysis is carried out. In addition, in addition to the above-mentioned selective viewing methods, there are methods such as forced preferential looking, operant preferred looking, and acuity card procedure. [0003] But when using the above-mentioned vision test method to test the eyesight of the testee, an additional observer is usually needed to observe the line of sight beh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/103
Inventor 黄磊熊春水
Owner HANVON CORP
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