Strabism measuring instrument and its method for measuring strabism

A measuring instrument and technology to be measured, which is applied in the fields of eye testing equipment, medical science, diagnosis, etc., can solve the problems of complex structure of measuring equipment and large measurement error, and achieve the effect of good practical application value.

Inactive Publication Date: 2008-04-09
赵阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a squint degree measuring instrument and its measuring method, so as to solve the problems of relatively large measurement error and complex structure of the measuring equipment in the existing inspection method

Method used

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  • Strabism measuring instrument and its method for measuring strabism
  • Strabism measuring instrument and its method for measuring strabism
  • Strabism measuring instrument and its method for measuring strabism

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as Figure 1A with Figure 1B As shown, the horizontal structure is adopted, the reflective strip 92 is pasted, and two 4*1*0.3 high-reflective surfaces are pasted on the corresponding positions of the contact lens lens 91, and the illuminant of the coordinate instrument board (0.0) adopts 1W power 15° concentrating LED, and the rest of the illuminants use 0.1W LEDs. First cover the left eye with the shading plate P, and fix the target with the right eye, then move the shading plate P from the left eye to the right eye, the coordinates of the bright spot at the initial instant when the left eye is removed are (16, 0), and the coordinates of the bright spot after staring at the target are ( -60,0), then when the subject's right eye is staring at the target, the left eye's horizontal strabismus is (-60-16) / 2=-38°, and the vertical strabismus is (0-0) / 2=0°, Indicates that the patient has esotropia of 38° in the left eye and no vertical strabismus.

Embodiment 2

[0037] use figure 2 In the vertical head frame 3 shown, the reflective strip 92 is silver-plated, and two 4*1mm reflective surfaces are plated on the corresponding positions of the contact lens lens 91. The illuminant of the coordinate instrument board (0.0) adopts a Class I laser with a diameter of 3cm beam, and the rest of the illuminants use 0.1W LEDs. First cover the right eye with the shading plate P, and focus on the target with the left eye, then move the shading plate P from the right eye to the left eye, the coordinates of the bright spot at the initial moment when the right eye is removed are (80, 10), and the coordinates of the bright spot after gazing at the target are ( 10, 8), then when the subject’s left eye is staring at the (0.0) target, the horizontal strabismus of the right eye is (10-80) / 2=-35°, and the vertical strabismus is (8-10) / 2=-1 °, indicating that the patient's right eye has exotropia of 35° and supratropia of 1°.

[0038] The principle of geome...

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Abstract

The present invention provides a strabismus degree measuring apparatus. It is formed from table frame, coordinate machine, head frame, contact lenses, parallel light emitting device and far and near 9 eye position objective stare systems. Besides, said invention also provides its strabismus degree measuring method and concrete steps by using said apparatus.

Description

technical field [0001] The invention belongs to the field of ophthalmic medical instruments, in particular to a strabismus measuring instrument and a measuring method thereof. Background technique [0002] Strabismus is a common disease in ophthalmology, and surgical treatment is its main method. The main basis for the preoperative design of strabismus surgery is the degree of strabismus. Therefore, obtaining an accurate degree of strabismus is an important factor affecting the surgical effect. Existing clinically widely used methods for checking the degree of strabismus mainly include: prism plus cover test method, visual field arc test method, corneal light reflection method, strabismus ruler test method and synoptic machine test method. The above methods all depend on the patient’s understanding and cooperation to varying degrees, and due to the influence of the subjective factors of the examiner and the examinee, the examination results are often inconsistent and have la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/00
Inventor 赵阳
Owner 赵阳
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