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Method for detecting vision of infant

A technology for detecting eyesight, infants and young children, applied in eye testing equipment, retinoscopy, medical science, etc., can solve the problems of lack of quantitative evaluation, difficult vision inspection, etc.

Inactive Publication Date: 2014-12-03
SCOPERICH MEDICAL DEVICES
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AI Technical Summary

Problems solved by technology

[0003] However, due to the unconsciousness and unstable attention of young children, especially in infancy, it is difficult to check their vision. In the past, the evaluation of the visual development of infants and young children can only be made through general qualitative evaluations of light reactions, fixation and gaze-following behaviors. lack of a quantitative evaluation

Method used

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  • Method for detecting vision of infant

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Embodiment

[0025] Example: such as figure 1 Shown, a kind of method for detecting infant vision, it comprises the following steps:

[0026] 1. Parameter setting, the system sets the distance between the monitor and the infant to be 900mm, the initial detection visual acuity of the visual acuity value is 0.05-1.0, the preferred initial visual acuity value is 0.5, and the number of tests for each visual acuity value is several times, the optimal number of times 3 times, and the position of the grid pattern is randomly changed every several seconds, and the preferred time interval is 3 seconds (the parameters can be adjusted according to actual needs).

[0027] 2. Keep the height of the infant's head parallel to the monitor, and keep the infant's head basically stable when looking at the eye chart.

[0028] 3. Choose a way to attract the attention of the infants under test according to the needs, which can be playing music or displaying cartoon pictures, so that the infants under test can ...

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Abstract

The invention discloses a method for detecting the vision of an infant. The method comprises the following steps of A, setting system parameters, wherein the system parameters comprise an initial detection vision value, the distance from a display to the infant, the time interval of changing the position of a pattern for one time and the test times of each vision value; B, drawing the attention of the infant; C, displaying an infant selective watching chart on an image display, wherein the selective watching chart is formed by vision test bar grating patterns and a grey background, and the width of each bar grate corresponds to one vision value in the international standard vision chart; D, changing the positions of the bar grating patterns in the selective watching chart; testing each vision value according to the test times set in the step A; E, adjusting a next test vision value according a test result in the step D until a highest vision value is detected. According to the method disclosed by the invention, the selective watching capacity of the infant can be objectively, effectively, conveniently and automatically identified.

Description

technical field [0001] The invention relates to a method for detecting eyesight of infants. Background technique [0002] People's research on the visual development of infants and young children reveals that before the age of 2 to 3 is the critical period for visual development. Therefore, it is of great significance to master the visual development process of infants and young children during their developmental stage. [0003] However, due to the unconsciousness and unstable attention of young children, especially in infancy, it is difficult to check their vision. In the past, the evaluation of the visual development of infants and young children can only be made through general qualitative evaluations of light reactions, fixation and gaze-following behaviors. A quantitative evaluation is missing. [0004] In 1958, Fantz reported that in an environment without other disturbances, two objects were placed in front of infants of 6 months or younger at the same time. The tw...

Claims

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Application Information

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IPC IPC(8): A61B3/103A61B3/113A61B3/14
Inventor 俞斌徐海鹏周行涛朱振华刘琪罗陈
Owner SCOPERICH MEDICAL DEVICES
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