CN103767671A - Bi-color axial position astigmatic chart and astigmatism checking method adopting same - Google Patents
Bi-color axial position astigmatic chart and astigmatism checking method adopting same Download PDFInfo
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- CN103767671A CN103767671A CN201410047800.9A CN201410047800A CN103767671A CN 103767671 A CN103767671 A CN 103767671A CN 201410047800 A CN201410047800 A CN 201410047800A CN 103767671 A CN103767671 A CN 103767671A
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- 201000009310 astigmatism Diseases 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000004438 eyesight Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 238000010998 test method Methods 0.000 description 4
- 206010034960 Photophobia Diseases 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 208000013469 light sensitivity Diseases 0.000 description 2
- 208000014733 refractive error Diseases 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
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- 208000029091 Refraction disease Diseases 0.000 description 1
- 230000004430 ametropia Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
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Abstract
The invention discloses a bi-color axial position astigmatic chart and an astigmatism checking method adopting the same, which can be used for detecting astigmatism diopter and the axial position of astigmatism quickly, effectively and accurately.
Description
Technical field
The present invention relates to optometry field, relate in particular to double-colored axle position astigmatic chart and use the astigmatic method of testing of this double-colored axle position astigmatic chart.
Background technology
In existing optometry process, use red green sighting target to determine the concave-sphere number of degrees, come direction and the astigmatism degree of definite axle position with conventional astigmatic table, but measuring like this astigmatism degree and the axle position come is summary, very inaccurate, and applies red green sighting target and conventional astigmatic table and measure the method for astigmatism degree and axle position and have its limitation, especially when astigmatism degree and myopia degree are close, by the more difficult good result that obtains of this method, and can not determine accurate measurement astigmatism, more easily cause error.
Summary of the invention
The object of the invention is: a kind of double-colored axle position astigmatic chart is provided and uses the astigmatic method of testing of this double-colored axle position astigmatic chart, can fast, effectively, accurately detect astigmatism degree and axis of astigmatism.
To achieve these goals, technical scheme of the present invention is:
Double-coloredly test an astigmatic method, comprise the following steps:
A kind of double-colored axle position astigmatic chart, comprises that angle is red line and the green line of 5 degree～90 degree.
The present invention is owing to having adopted above-mentioned technology, and the good effect that makes it compared with prior art to have is: the double-colored axle position astigmatic chart that the present invention has red line and green line by use carries out optometry, can fast, effectively, accurately detect astigmatism degree and axis of astigmatism.
Accompanying drawing explanation
Fig. 1 is the structural representation of the double-colored axle of the present invention position astigmatic chart.
Fig. 2 is the structural representation of the double-colored vertical astigmatic chart of the present invention.
The specific embodiment
Further illustrate embodiments of the invention below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 and Fig. 2, a kind of double-colored astigmatic method of testing, comprises the following steps:
Double-colored axle position astigmatic chart, comprises that angle is red line and the green line of 5 degree～90 degree.
Generally, there is color sensitivity because eyes are congenital, light sensitivitys to sodium yellow is strong, to red, blue light light sensitivitys is poor, like this in spectrum the brightest gold-tinted on retina, form very clearly as, and by growing or the color of light of shorter wavelength, only form the ring of light comparatively not working, so be easily left in the basket, also just make chromatic aberration obtain to a certain extent and make up.Though but suffer from ametropia or correct but do not reach appropriateness when human eye, to wear with red, green len or watch red green different sighting targets attentively, the chromatic aberration of human eye just will inevitably make patient feel the difference of red, green sighting target definition.This is bichrome refraction ratio juris just also.But it is to be noted here: application red green filter disc, its red filter disc transmitance peak value is in the time of 620nm, dioptric colour difference is+0.24D, green filter disc transmitance honeybee value is in the time of 535nm, colour difference is-0.21D, so time total colour difference be about 0.50D, effective correction of refractive errors scope that bichrome refraction is corresponding is 0.50D, therefore before bichrome refraction, should be increased to optimum by correcting defects of vision as far as possible.
In sum, the double-colored axle of the present invention position astigmatic chart can fast, effectively, accurately detect astigmatism degree and axis of astigmatism.
Claims (2)
1. double-coloredly test an astigmatic method, it is characterized in that: comprise the following steps:
Step 1, plugs the spherocylindrical lens of optometry data at trial frame, and carries out mist and look, to vision 0.3 left and right;
Step 2, removes all post mirrors on trial frame;
Step 3, progressively increases negative concave-sphere or the normal position of spherical lens that successively decreases, and makes vision to 0.6;
Step 4, throws in astigmatism dish, if those who are investigated think that the svelteness degree of all directions is all similar, the optometry of astigmatism dish finishes, and those who are investigated do not detect astigmatism; If those who are investigated think that definition is variant, determine which bar lines is the most clear, and the record direction of lines the most clearly;
Step 5, is used red green axle position astigmatic chart, and the green line of red green axle position astigmatic chart is aimed to the direction of above-mentioned lines the most clearly.
Step 6, if those who are investigated think that the clear degree of red line on above-mentioned green line both sides is all similar, surveys axis of astigmatism and finishes; If those who are investigated think that definition is variant, confirm which the bar red line in the red line of both sides is clear, past red line direction rotation astigmatic chart 0 to 10 degree clearly;
Step 7, repeats six steps again, until those who are investigated think that two red line definitions are all similar, surveys axis of astigmatism and finishes;
Step 8, is used the vertical astigmatism dish of red green axle, by green line bar shaft alignment step 5 medium green lines axle position;
Step 9, supposes that those who are investigated feel green and red line definition is all similar, and examinee's astigmatism is-0.50D; If those who are investigated think that definition is variant, strutting mirror in the vertical axial direction of green line, until green the same with red line clear, examinee's mean of cylindrical diopter is, at actual add-0.50D of post mirror.
2. a double-colored axle position astigmatic chart, is characterized in that: comprise that angle is red line and the green line of 5 degree～90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047800.9A CN103767671B (en) | 2014-02-11 | 2014-02-11 | Bi-color axial position astigmatic chart |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410047800.9A CN103767671B (en) | 2014-02-11 | 2014-02-11 | Bi-color axial position astigmatic chart |
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| CN103767671A true CN103767671A (en) | 2014-05-07 |
| CN103767671B CN103767671B (en) | 2015-07-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342550A (en) * | 2015-09-29 | 2016-02-24 | 张仕郎 | Electronic astigmatic chart and method for measuring astigmatism focal power |
| CN106901685A (en) * | 2017-03-06 | 2017-06-30 | 云视野（北京）科技有限公司 | A kind of method for obtaining diopter, device and electronic equipment |
| CN109744995A (en) * | 2019-01-30 | 2019-05-14 | 鲁国耀 | A kind of visual chart and prevented the optometry method rectified |
| CN111281328A (en) * | 2020-02-27 | 2020-06-16 | 南京云视郎生物科技有限公司 | Amblyopia optometry method and device and electronic equipment |
| CN113693550A (en) * | 2021-09-02 | 2021-11-26 | 上海健苜科技有限公司 | Full-automatic intelligent comprehensive optometry analysis system and method |
| CN115590459A (en) * | 2022-10-25 | 2023-01-13 | 江苏鸿晨集团有限公司（Cn） | High-precision light-diffusing plate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106595U (en) * | 1991-11-26 | 1992-06-10 | 李观富 | Multi-functional instrument for examining the eyes |
| JP3120274B2 (en) * | 1996-12-24 | 2000-12-25 | 皓夫 中川 | Red-green tester with red and green targets |
| CN1297713A (en) * | 1999-11-25 | 2001-06-06 | 邓可立 | Ametropia correcting method and equipment |
| JP4777810B2 (en) * | 2006-03-30 | 2011-09-21 | 株式会社トプコン | A subjective optometry device |
| CN201275058Y (en) * | 2008-09-02 | 2009-07-22 | 闵国光 | Multifunctional lamp box for examining diopter |
| CN201602753U (en) * | 2010-01-08 | 2010-10-13 | 曹季 | Astigmatic chart combined optometry light box |
-
2014
- 2014-02-11 CN CN201410047800.9A patent/CN103767671B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342550A (en) * | 2015-09-29 | 2016-02-24 | 张仕郎 | Electronic astigmatic chart and method for measuring astigmatism focal power |
| CN106901685A (en) * | 2017-03-06 | 2017-06-30 | 云视野（北京）科技有限公司 | A kind of method for obtaining diopter, device and electronic equipment |
| CN106901685B (en) * | 2017-03-06 | 2019-01-22 | 云视野（北京）科技有限公司 | A kind of method, apparatus and electronic equipment obtaining diopter |
| CN109744995A (en) * | 2019-01-30 | 2019-05-14 | 鲁国耀 | A kind of visual chart and prevented the optometry method rectified |
| CN111281328A (en) * | 2020-02-27 | 2020-06-16 | 南京云视郎生物科技有限公司 | Amblyopia optometry method and device and electronic equipment |
| CN113693550A (en) * | 2021-09-02 | 2021-11-26 | 上海健苜科技有限公司 | Full-automatic intelligent comprehensive optometry analysis system and method |
| CN115590459A (en) * | 2022-10-25 | 2023-01-13 | 江苏鸿晨集团有限公司（Cn） | High-precision light-diffusing plate |
| CN115590459B (en) * | 2022-10-25 | 2023-07-07 | 江苏鸿晨集团有限公司 | High-precision light diffusion plate |
Also Published As
| Publication number | Publication date |
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| CN103767671B (en) | 2015-07-01 |
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Effective date of registration: 20151113 Address after: 100081, A, building 1, building 48, No. 3 West Third Ring Road, Haidian District, Beijing, 24E Patentee after: Cloud View (Beijing) Technology Co., Ltd. Address before: 564799 Zhang Xiaohua clinic, two floor, Lotus Pond, Chishui, Guizhou, Zunyi Patentee before: Zhang Shilang |