CN101530316A - Objective quantitative measurement method of monocular diplopia - Google Patents
Objective quantitative measurement method of monocular diplopia Download PDFInfo
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- CN101530316A CN101530316A CN200910115010A CN200910115010A CN101530316A CN 101530316 A CN101530316 A CN 101530316A CN 200910115010 A CN200910115010 A CN 200910115010A CN 200910115010 A CN200910115010 A CN 200910115010A CN 101530316 A CN101530316 A CN 101530316A
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Abstract
The invention provides an objective quantitative measurement method of monocular diplopia, comprising the following steps: (1) producing a visual target based on measuring distance and generating a circular bright spot as stimulus on a screen with black background; (2) using a circular ring around the visual target as the measurement visual target in changeable diameter and contrast by program, wherein the circular ring diameter gradually increases during measurement, and the circular diameter is judged and recorded by the patient when the circular ring exactly changes into imperfect from perfect; then the circular rings of different contrast in different group are repeatedly measured and the circular ring diameters are respectively recorded; (3) quantitatively measuring the monocular diplopia index based on the measurement results of the visual targets of different contrast and the contrasts of the corresponding visual targets. The advantages of the invention are that: 1 the eyes vision symptom degree is objectively evaluated by the interpretation of the visual target based on the patient subjective perception; 2 the quantitative evaluation index is obtained by the objective quantitative measurement.
Description
Technical field
The present invention relates to a kind of measuring method, relate in particular to a kind of objective method for quantitative measuring of human eye monocular diplopia.
Background technology
Cornea refractive surgery, as RK, PRK and LASIK are commonly used to ametropia such as myopia correction, hypermetropia and astigmatism.But refractive surgery has caused the increase of higher order aberratons correcting low order aberration out of focus and scattered-light while, has brought some visual quality problems for the part patient, as vision symptoms such as monocular diplopia.
Another or a plurality of abnormal image appear in monocular diplopia when mainly being meant the monocular fixation target, comprise phenomenons such as monocular diplopia, pseudo-shadow, diplopia.Patient behind people's eye surgery, the form of expression weight of ghost image differs.Mostly the lighter is that moderate distance is watched attentively about the literal edge of object or reading or one or more diplopias appear in upper and lower sides, generally little to life study influence.Weight person then sees obvious overlapped object.Monocular diplopia, no matter distance all has vision to disturb, often with reading tired even closely reading difficulty.
At present, the assessment of monocular diplopia mainly is to be undertaken by dual mode.The first, experienced doctor's direct access inquiry; The second, by the form of questionnaire survey.According to the perception degree of patient, several different symptom degree (as 5) in questionnaire, have been listed to symptom.But these two kinds of methods all are based on patient's perception and the degrees of tolerance of symptom are estimated the vision symptom, and it is too big influenced by individual subjective factors, does not possess objectivity.
Summary of the invention
The object of the present invention is to provide a kind of objective method for quantitative measuring of human eye monocular diplopia, subjective perception based on patient, by interpretation to sighting target, the degree of objective appraisal human eye vision symptom, provide quantitative evaluation index, for correct diagnosis and the vision symptom of estimating postoperative patient provide a new method.
The present invention is achieved like this, and it is characterized in that the measuring method step is:
(1) making corresponding sighting target according to measuring distance, can measure the monocular diplopia degree under myopia or the hypermetropia situation, is to produce a circular speck on the screen of black as a constant stimulus in background by computer programming;
(2) annulus is arranged as the test sighting target around sighting target, this annulus can pass through routine change diameter and contrast, circle diameter is big from little change during measurement, judge that by patient annulus is just become the circle diameter when imperfect and write down circle diameter value d1 by complete, the annulus of repeated measure some other groups of different contrast writes down circle diameter respectively then;
(3) come quantitative Analysis monocular diplopia index according to the measurement result of the test sighting target of several different contrast and the contrast of corresponding test sighting target.
Advantage of the present invention is: 1, based on patient's subjective perception, and by interpretation to sighting target, the degree of objective appraisal human eye vision symptom; 2, this measurement can provide quantitative evaluation index.
Description of drawings
Fig. 1 is a workflow diagram of the present invention.
The specific embodiment
As shown in Figure 1, according to the monocular diplopia index of measuring under myopia or the hypermetropia situation, produce suitable fixation target 1 by computer system, produce a concentric annulus as variable test sighting target 2 simultaneously around fixation target 1, this test sighting target can pass through routine change diameter and contrast.The circle diameter of test usefulness is big from little change during measurement, judges that by patient annulus is just become the circle diameter when imperfect and write down the circle diameter value by complete; The annulus of the other 3 kinds of different contrast of repeated measure writes down circle diameter respectively then; Calculate monocular diplopia index 3 according to the circle diameter value that measurement result write down of the test sighting target of 4 kinds of different contrast and the contrast of corresponding test sighting target.
Claims (1)
1, a kind of objective method for quantitative measuring of human eye monocular diplopia is characterized in that the measuring method step is:
(1) making corresponding sighting target according to measuring distance, can measure the monocular diplopia degree under myopia or the hypermetropia situation, is to produce a circular speck on the screen of black as a constant stimulus in background by computer programming;
(2) annulus is arranged as the test sighting target around sighting target, this annulus can pass through routine change diameter and contrast, circle diameter is big from little change during measurement, judge that by patient annulus is just become the circle diameter when imperfect and write down the circle diameter value by complete, the annulus of repeated measure some other groups of different contrast writes down circle diameter respectively then;
(3) come quantitative Analysis monocular diplopia index according to the measurement result of the test sighting target of several different contrast and the contrast of corresponding test sighting target.
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| CN200910115010A CN101530316A (en) | 2009-03-06 | 2009-03-06 | Objective quantitative measurement method of monocular diplopia |
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| CN200910115010A CN101530316A (en) | 2009-03-06 | 2009-03-06 | Objective quantitative measurement method of monocular diplopia |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103356164A (en) * | 2013-07-12 | 2013-10-23 | 北京阳明智道光电科技有限公司 | Measurement system and measurement method for vision health comfort degree |
| CN105832284A (en) * | 2016-03-18 | 2016-08-10 | 周凌云 | Binocular optical image separation detection device and method |
| CN110604541A (en) * | 2019-10-23 | 2019-12-24 | 重庆康萃医药科技有限公司 | Binocular balance detection system and detection method thereof |
| CN110604540A (en) * | 2019-10-23 | 2019-12-24 | 重庆康萃医药科技有限公司 | Binocular fusion failure judgment method, fusion function detection method and system |
| CN110604542A (en) * | 2019-10-23 | 2019-12-24 | 重庆康萃医药科技有限公司 | Visual suppression determination method and system |
| CN111447868A (en) * | 2017-11-24 | 2020-07-24 | 弱视技术有限公司 | Method and apparatus for treating double vision and insufficient convergence disorders |
-
2009
- 2009-03-06 CN CN200910115010A patent/CN101530316A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103356164A (en) * | 2013-07-12 | 2013-10-23 | 北京阳明智道光电科技有限公司 | Measurement system and measurement method for vision health comfort degree |
| CN103356164B (en) * | 2013-07-12 | 2016-07-27 | 北京阳明智道光电科技有限公司 | The measurement system of a kind of Vision Health comfort level and measuring method |
| CN105832284A (en) * | 2016-03-18 | 2016-08-10 | 周凌云 | Binocular optical image separation detection device and method |
| CN111447868A (en) * | 2017-11-24 | 2020-07-24 | 弱视技术有限公司 | Method and apparatus for treating double vision and insufficient convergence disorders |
| CN110604541A (en) * | 2019-10-23 | 2019-12-24 | 重庆康萃医药科技有限公司 | Binocular balance detection system and detection method thereof |
| CN110604540A (en) * | 2019-10-23 | 2019-12-24 | 重庆康萃医药科技有限公司 | Binocular fusion failure judgment method, fusion function detection method and system |
| CN110604542A (en) * | 2019-10-23 | 2019-12-24 | 重庆康萃医药科技有限公司 | Visual suppression determination method and system |
| CN110604540B (en) * | 2019-10-23 | 2021-08-24 | 重庆能能科技有限公司 | Binocular fusion failure judgment method, fusion function detection method and system |
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Open date: 20090916 |