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Ocular accommodation sensitivity detector

A detection device and a sensitivity technology, applied in the field of visual function detection devices, can solve the problems of low comparability and low accuracy of detection results, and achieve the effects of improving detection level, improving detection convenience, and eliminating false detection results.

Inactive Publication Date: 2010-06-02
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a detection device for eye adjustment sensitivity, which overcomes the defects of low accuracy and low comparability of detection results in the prior art, and improves the accuracy and comparability of detection results of eye adjustment sensitivity

Method used

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  • Ocular accommodation sensitivity detector
  • Ocular accommodation sensitivity detector
  • Ocular accommodation sensitivity detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2 , image 3 As shown, the eye adjustment sensitivity detection device of the present invention includes a machine base 12, a frame 10, a detection mirror device, a detection mirror switching transmission mechanism and an interpupillary distance adjustment mechanism.

[0042] The detection mirror device includes a detection mirror device 1 and a detection mirror device 2 used in pairs. The detection mirror device 1 and the detection mirror device 2 respectively comprise a lens disk 100, a lens switching positioning device and a lens 3 arranged on the lens disk 100, and the inspected person's line of sight passes through the lens 3 to observe the visual mark on the other side of the lens 3 ( Not shown in the figure), the visual target can adopt the physical visual target or the electronic visual target displayed on the display screen.

[0043] The rack 10 includes a rack A and a rack B. As shown in FIG. In this embodiment, frame A and frame...

Embodiment 2

[0067] This embodiment is basically the same as Embodiment 1, the difference is:

[0068] 1. The detection mirror switching transmission mechanism adopts the following structure:

[0069] Such as Figure 4 , Figure 5 As shown, the detection mirror switching transmission mechanism includes two sets of independent transmission mechanisms and adjustment rods 62, and each set of transmission mechanisms respectively includes drive wheels that are connected by transmission belts 5 and rotatably supported on the same frame (frame A or frame B). 61. The driven wheel 4 and the steering wheel 71, the driven wheel 4 is coaxial with the lens disc 100, and the axis is rotated and supported on the frame along the direction perpendicular to the sliding direction in which the frame and the frame are slidably connected, and the steering wheel 71 is supported on the frame to meet the requirements of the pair of transmission belts. The direction of guidance is rotated and supported on the fra...

Embodiment 3

[0087] Such as Figure 7 , Figure 8 As shown, the present embodiment adds the following structure on the basis of the first embodiment: a switching signal source 200 , a switching signal collector 201 , a computer 202 , a display driver and controller 203 and a liquid crystal display 204 connected in sequence.

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Abstract

The invention relates to an ocular accommodation sensitivity detector comprising a base, a stand, a scope device, a scope switching transmission mechanism and an interpupillary distance adjustment mechanism, wherein two independent scope devices of the scope device respectively comprise lens discs, lens switching location devices and lenses, the lens discs respectively rotatably support on a stand A and a stand B of the stand, one or both of the stand A and the stand B is / are connected on the base in a sliding way, and the sliding direction enable the lens discs to be close or far, and the lens switching location devices comprise elastic elements, locating elements and positioning grooves which are respectively arranged on a coaxial mechanism and a stand mechanism of the lens discs; the scope switching transmission mechanism is arranged between the base and the stand and comprises a transmission belt and a driving wheel and a driven wheel which are connected with the transmission belt in a transmission way; the interpupillary distance adjustment mechanism comprises a screw rotatably supported on the base and an internal thread matched with the screw and arranged on the stand. The invention enhances the ocular accommodation sensitivity detection level and can get rid of false detection results.

Description

technical field [0001] The invention relates to a visual function detection device, more specifically, to a detection device for human eye adjustment sensitivity. Background technique [0002] Eye accommodation sensitivity is a clinical examination in ophthalmology, which is used to measure the ability of one eye or both eyes to make rapid and precise adjustment responses to alternating accommodation stimuli under the condition of monocular or binocular fixation, reflecting the dynamic function of eye accommodation. It is used to evaluate the ability and abnormality of monocular or binocular adjustment, and has a positive effect on the diagnosis and treatment of visual fatigue, strabismus, dyslexia and other diseases. [0003] The traditional measurement methods of eye accommodation sensitivity include the lens swing method and the distance swing method, among which the lens swing method is more commonly used. This method requires the examinee to wear far-correction glasses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/09
Inventor 顾其威梁平顾嘉良
Owner SHENZHEN UNIV
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