CN104173021A - Method for detecting vision of infant - Google Patents
Method for detecting vision of infant Download PDFInfo
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- CN104173021A CN104173021A CN201310198321.2A CN201310198321A CN104173021A CN 104173021 A CN104173021 A CN 104173021A CN 201310198321 A CN201310198321 A CN 201310198321A CN 104173021 A CN104173021 A CN 104173021A
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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
The present invention relates to a kind of method that detects infant eyesight.
Background technology
To infant visual development, research discloses people: before 2～3 years old, be the critical period of visual development.Therefore grasp its visual acuity process in the infant development stage, significant.
But due to child especially cradle there is no consciousness and attention unstable, thereby its vision is difficult to check, about the evaluation of infant visual development in the past conventionally can only be by light reflex, watch attentively and sight is followed behavior etc. and done generally to evaluate qualitatively, and lack a kind of quantitative evaluation.
Within 1958, Fantz has reported in the environment that there is no other interference, two objects are placed on 6 months simultaneously or less baby in face of, these two objects are all the same at aspects such as brightness, color and sizes, but the inherent pattern difference of object, one is black and white party's grid pattern, another is even grey screen, found that children's prefers to see the former.This observed result provides the new method of measuring infant eyesight, i.e. preferential looking.
Summary of the invention
The object of the invention is: a kind of method that detects infant eyesight is provided, can effectively differentiates that infant selectivity watches ability attentively.
Technical scheme of the present invention is: a kind of method that detects infant eyesight, it is characterized in that, and it comprises the following steps:
A, initialization system parameter, comprise and set the initial value of giving a test of one's eyesight, set and display device and infant distance, and the interval of a setting position of pattern change, sets the testing time of each vision value;
B, attracting babies attention;
C, on image display, show that infant selectivity watches table attentively, selectivity is watched table attentively and is made up of eyesight testing bar gate pattern and gray background, a vision value in the corresponding international standard visual acuity chart of each grid width;
D, conversion selectivity are watched the position of the bar gate pattern in table attentively; Each vision value is by the testing time test several times of setting in steps A;
E, adjust next test vision value according to test result in step D, until detect the highest vision value.
Below technique scheme is further expalined:
In described steps A, the initial value of giving a test of one's eyesight is set as 0.5, and display and infant distance are 900mm, and interval is 3 seconds; Testing time in step D is 3 times.
Described step B adopts the method attracting babies attention of playing music or showing cartoon picture.
In described step D, if infant is observed the conversion of bar gate pattern position, the corresponding rotation of eyeball, watches the bar gate pattern of reposition attentively, represents eyesight testing success, if infant eyeball is not made corresponding rotation, represents eyesight testing failure.
In the test process of described step D, the video camera moment catches the movement of infant eyeball, in the time that bar gate pattern is shifted one's position, monitor whether eyeball rotates towards the reposition of bar gate pattern conversion, the response time that record rotates and the time that continues to watch attentively reposition, be saved in data base, if eyeball is made correct rotation in the maximum response time of setting, in the time that the locality of the reaction of making and bar gate pattern is consistent, provide to stimulate and reward, make tested infant formation condition reflection, be designated as eyesight testing success simultaneously, there is selective visual perception, otherwise be designated as eyesight testing failure.
When adjustment in described step e comprises the upwards one grade of movement of eyesight testing when success vision value, eyesight testing failure, vision value is to next grade of movement.
Described method is checked testing result after being also included in and detecting and finish, and calculates average reaction time, average duration of fixation, and calculate the best vision value of infant according to the response time according to detecting data.
Described method is checked eyeball video recording, by the infant process playback that eyeball moves in the time detecting, so that the data in the further inspection test procedure of operator are corrected contingent mistake after being also included in and detecting and finish.
In described process of checking eyeball video recording, slow down broadcasting speed, on the basis of slow motion playback, accurately find out the beginning and ending time that eyeball moves.
Described gate pattern is presented at display edge, stochastic transformation position.
Advantage of the present invention is: the method for detection infant eyesight of the present invention, can differentiate objectively, automatically that infant selectivity watches ability attentively, and form examination criteria, and make related text, the evaluation of numeral and graphic form.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the workflow schematic diagram of the preferred embodiments of the present invention.
Detailed description of the invention
Embodiment: as shown in Figure 1, a kind of method that detects infant eyesight, it comprises the following steps:
1, parameter setting, default display and infant are kept at a distance as 900mm, initial the giving a test of one's eyesight of vision value is 0.05～1.0, preferred initial vision value is 0.5, each vision value testing time is several times, preferably number of times is 3 times, and bar gate pattern is every position of stochastic transformation in some seconds, and preferably interval is 3 seconds (parameter can be adjusted according to actual needs).
2, keep baby head height parallel with display, keep baby head basicly stable in the time watching visual acuity chart attentively.
3, selecting as required a kind of mode that attracts tested infant attention, can be play music or show cartoon picture, and the attention of tested infant is focused on the image of observing on liquid crystal display.
4, acquisition software is watched infant selectivity to show to be presented on liquid crystal display attentively, this selectivity is watched table attentively and is made up of eyesight testing bar gate pattern and gray background, bar gate pattern random display is at display edge, each grid width, a vision value in corresponding international standard visual acuity chart.
5, according to the corresponding relation of vision value and bar grid width and gray scale, eyesight testing bar gate pattern is generated automatically by software, and the precision of images is high, and bar gate pattern random display is at display edge.
6,, after starting to detect, bar grid, every position of stochastic transformation in 3 seconds, if infant is observed this conversion, will produce selectivity reflection, rotate eyeball, watch the bar grid of reposition attentively; If set eyesight testing success, vision value moves up one grade, if failure moves down one grade, until detect the highest vision value.
7, in testing process, the ccd video camera moment catches the movement of infant eyeball, in the time that bar grid are shifted one's position, monitor whether eyeball rotates towards the reposition of bar grid conversion, the response time that record rotates and the time that continues to watch attentively reposition, be saved in data base, if eyeball is made correct rotation in the maximum response time of setting, in the time that the locality of the reflection of making and bar gate pattern is consistent, provide to stimulate and reward, make tested infant formation condition reflection, be designated as simultaneously and test successfully, illustrate that tested infant has selective visual perception, otherwise be designated as failure.
8, after detection finishes, can check testing result, system calculates average reaction time, average duration of fixation according to detecting data, and according to response time estimation measured's best vision value, and provide rational clinical recommendation.
9, after detection finishes, while checking testing result, can check eyeball video recording, the process playback that is measured eyeball moves in the time detecting, and can slow down broadcasting speed, so that the further data in inspection test procedure of operator, correct contingent mistake, on the basis of slow motion playback, accurately find out the beginning and ending time that eyeball moves, make data more accurate.
It should be pointed out that for the present invention through absolutely proving, also can there is the embodiment of multiple conversion and remodeling, be not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment is as just explanation of the present invention, instead of limitation of the present invention.In a word, protection scope of the present invention should comprise those apparent conversion or alternative and remodeling to those skilled in the art.
Claims (10)
1. a method that detects infant eyesight, is characterized in that, it comprises the following steps:
A, initialization system parameter, comprise and set the initial value of giving a test of one's eyesight, set and display device and infant distance, and the interval of a setting position of pattern change, sets the testing time of each vision value;
B, attracting babies attention;
C, on image display, show that infant selectivity watches table attentively, selectivity is watched table attentively and is made up of eyesight testing bar gate pattern and gray background, a vision value in the corresponding international standard visual acuity chart of each grid width;
D, conversion selectivity are watched the position of the bar gate pattern in table attentively; Each vision value is by the testing time test several times of setting in steps A;
E, adjust next test vision value according to test result in step D, until detect the highest vision value.
2. the method for detection infant eyesight according to claim 1, is characterized in that: in described steps A, the initial value of giving a test of one's eyesight is set as 0.5, and display and infant distance are 900mm, and interval is 3 seconds; Testing time in step D is 3 times.
3. the method for detection infant eyesight according to claim 1, is characterized in that: described step B adopts the method attracting babies attention of playing music or showing cartoon picture.
4. the method for detection infant eyesight according to claim 1, it is characterized in that: in described step D, if infant is observed the conversion of bar gate pattern position, the corresponding rotation of eyeball, watch the bar gate pattern of reposition attentively, represent eyesight testing success, if infant eyeball is not made corresponding rotation, represent eyesight testing failure.
5. the method for detection infant eyesight according to claim 1, it is characterized in that: in the test process of described step D, the video camera moment catches the movement of infant eyeball, in the time that bar gate pattern is shifted one's position, monitor whether eyeball rotates towards the reposition of bar gate pattern conversion, the response time that record rotates and the time that continues to watch attentively reposition, be saved in data base, if eyeball is made correct rotation in the maximum response time of setting, in the time that the locality of the reaction of making and bar gate pattern is consistent, provide to stimulate and reward, make tested infant formation condition reflection, be designated as eyesight testing success simultaneously, there is selective visual perception, otherwise be designated as eyesight testing failure.
6. according to the method for the detection infant eyesight described in claim 4 or 5, it is characterized in that: when the adjustment in described step e comprises the upwards one grade of movement of eyesight testing when success vision value, eyesight testing failure, vision value is to next grade of movement.
7. the method for detection infant eyesight according to claim 1, it is characterized in that: described method be also included in detect finish after, check testing result, calculate average reaction time, average duration of fixation according to detecting data, and calculate the best vision value of infant according to the response time.
8. the method for detection infant eyesight according to claim 1, it is characterized in that: described method be also included in detect finish after, check eyeball video recording, by the infant process playback that eyeball moves in the time detecting, so that the data in the further inspection test procedure of operator, correct contingent mistake.
9. the method for detection infant eyesight according to claim 8, is characterized in that: described in check in the process of eyeball video recording, slow down broadcasting speed, on the basis of slow motion playback, accurately find out the beginning and ending time that eyeball moves.
10. the method for detection infant eyesight according to claim 1, is characterized in that: described gate pattern is presented at display edge, stochastic transformation position.
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| CN201310198321.2A CN104173021A (en) | 2013-05-24 | 2013-05-24 | Method for detecting vision of infant |
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| CN201310198321.2A CN104173021A (en) | 2013-05-24 | 2013-05-24 | Method for detecting vision of infant |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769115A (en) * | 2016-02-25 | 2016-07-20 | 孙汉军 | Eyesight self-testing method and device thereof |
| CN106175657A (en) * | 2015-12-11 | 2016-12-07 | 北京大学第医院 | A kind of vision automatic checkout system |
| EP3182364A1 (en) | 2015-12-16 | 2017-06-21 | Samos Medical Enterprise, SLU | System, method and computer program products to display an image according to the visual perception of living beings |
| CN110199944A (en) * | 2019-05-30 | 2019-09-06 | 吉林农业大学 | A method of utilizing transparent screw and vision decoy test experiments animal attraction |
| CN110269587A (en) * | 2019-06-28 | 2019-09-24 | 中山大学中山眼科中心 | Infant's motion analysis system and infant eyesight analysis system based on movement |
| CN110573061A (en) * | 2017-03-05 | 2019-12-13 | 沃缇奥普特蔻有限公司 | Ophthalmologic examination method and apparatus |
| CN111904375A (en) * | 2020-07-13 | 2020-11-10 | 中山大学中山眼科中心 | Visual chart for self-test and use method thereof |
| CN112991392A (en) * | 2021-04-12 | 2021-06-18 | 广东视明科技发展有限公司 | System for checking eyeball motion function in different spatial perception scenes |
| CN113456016A (en) * | 2021-06-09 | 2021-10-01 | 武汉艾格眼科医院有限公司 | Isolated automatic achromatopsia detecting system based on VR glasses |
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2013
- 2013-05-24 CN CN201310198321.2A patent/CN104173021A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175657A (en) * | 2015-12-11 | 2016-12-07 | 北京大学第医院 | A kind of vision automatic checkout system |
| CN106175657B (en) * | 2015-12-11 | 2018-01-30 | 北京大学第一医院 | A kind of eyesight automatic checkout system |
| EP3182364A1 (en) | 2015-12-16 | 2017-06-21 | Samos Medical Enterprise, SLU | System, method and computer program products to display an image according to the visual perception of living beings |
| CN105769115B (en) * | 2016-02-25 | 2018-06-26 | 孙汉军 | Eyesight self checking method and its equipment |
| CN105769115A (en) * | 2016-02-25 | 2016-07-20 | 孙汉军 | Eyesight self-testing method and device thereof |
| CN110573061B (en) * | 2017-03-05 | 2022-08-26 | 沃缇奥普特蔻有限公司 | Ophthalmologic examination method and apparatus |
| CN110573061A (en) * | 2017-03-05 | 2019-12-13 | 沃缇奥普特蔻有限公司 | Ophthalmologic examination method and apparatus |
| CN110199944A (en) * | 2019-05-30 | 2019-09-06 | 吉林农业大学 | A method of utilizing transparent screw and vision decoy test experiments animal attraction |
| CN110199944B (en) * | 2019-05-30 | 2023-04-25 | 吉林农业大学 | Method for testing attention of experimental animal by using transparent rotating ball and visual attractant |
| CN110269587A (en) * | 2019-06-28 | 2019-09-24 | 中山大学中山眼科中心 | Infant's motion analysis system and infant eyesight analysis system based on movement |
| CN110269587B (en) * | 2019-06-28 | 2021-10-08 | 中山大学中山眼科中心 | Infant motion analysis system and infant vision analysis system based on motion |
| CN111904375A (en) * | 2020-07-13 | 2020-11-10 | 中山大学中山眼科中心 | Visual chart for self-test and use method thereof |
| CN112991392B (en) * | 2021-04-12 | 2021-09-07 | 广东视明科技发展有限公司 | System for checking eyeball motion function in different spatial perception scenes |
| CN112991392A (en) * | 2021-04-12 | 2021-06-18 | 广东视明科技发展有限公司 | System for checking eyeball motion function in different spatial perception scenes |
| CN113456016A (en) * | 2021-06-09 | 2021-10-01 | 武汉艾格眼科医院有限公司 | Isolated automatic achromatopsia detecting system based on VR glasses |
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Application publication date: 20141203 |