CN116712029A - An eye refractive error detection device and method - Google Patents

Abstract

The invention relates to an eye refractive error detection device and method. The device includes an eye lens and a first beam splitter. In addition, it also includes an eye lens and a first beam splitter as common components and arranged side by side: used to obtain the measured The optical path for diopter detection of refractive error information of the human eye; used to provide a fixation image for the human eye to be tested and the visual mark optical path to stabilize the gaze of the human eye under test; used for three-dimensional positioning of the human eye under test and to obtain the measured human eye Eye position monitoring optical path for human eye corneal imaging information; posterior segment OCT measurement optical path for collecting posterior segment image information of the human eye under test: Through the present invention, the refractive error information of the eye can be obtained, and the refractive error information can also be measured at the same time. Anterior segment and posterior segment area, and ocular parameters such as axial length are obtained, which has creative significance in improving the accuracy of myopia analysis in adolescents.

Description

Eye refractive error detection device and method

Technical field

The present invention relates to the field of ophthalmology and technology, and specifically to an eye refractive error detection device and method.

Background technique

Human myopia is mainly divided into two categories: refractive myopia and axial myopia. Refractive myopia is mainly caused by excessive curvature of the cornea or lens or abnormal combination of refractive components. Axial myopia is caused by the elongation of the axial length of the eye. The axial length exceeds the normal range. Generally, the axial length of the eye is lengthened by 1 mm, and the degree of myopia increases by 200-300 degrees. Different prevention and control measures should be taken for different causes of myopia, so the measurement of axial length of the eye plays an important role in the prevention and control of myopia.

The axial length of the eye is an important parameter of the structure of the human eye. In the human eye, a hypothetical line from the center of the cornea to the optic nerve and the fovea of the retinal macula is called the axial length. Its length is generally in the range of 22 to 27 mm, with an average of 24 mm. It can be seen from the above that the axial length of the eye is an important indicator for judging the refractive error of the human eye. It can distinguish true myopia from pseudomyopia. It is also an important indicator for measuring intraocular lens parameters after cataract surgery.

A method and device for synchronous measurement of refractive error and axial length of the eye are provided in the prior art. This technical solution combines time-domain optical interference technology with Hartmann wavefront detection technology to achieve ocular circumferential length and refraction. The common detection of irregularities provides technical support for screening myopia. However, this technical solution cannot effectively and accurately judge the diopter and measure the axial length of children with weak visual fixation ability, thus weakening its practical value in myopia detection among teenagers.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art and provide a low-cost refractive error detection device and method that combines four optical paths.

The technical solution of the refractive error detection device provided by the present invention is as follows:

An eye refractive error detection device includes an eye lens and a first beam splitter, and also includes the eye lens and the first beam splitter as common components and arranged side by side:

Based on the ring confocal method, the diopter detection optical path is used to obtain the refractive error information of the human eye under test;

An optotype light path used to provide a fixation image for the human eye to be tested and to stabilize the gaze of the human eye to be tested;

An eye position monitoring optical path for three-dimensional positioning of the human eye under test and obtaining corneal imaging information of the human eye under test;

The posterior segment OCT measurement light path is used to collect the image information of the posterior segment area of the human eye under test.

Using the above technical solution, compared with the existing technology, the technical solution provided by the present invention can at least bring about the following beneficial effects: by setting the diopter detection light path, the visual mark light path, the eye position imaging light path and the posterior segment OCT measurement in parallel Optical path, when measuring the human eye, the eye position imaging optical path can be used to determine the position of the human eye and cornea information according to specific needs, the optotype optical path can be used to stabilize the gaze of the human eye under test, and the diopter detection optical path can be used to obtain the diopter of the human eye under test. Optical error information and posterior segment image information are collected using the posterior segment OCT measurement light path. During the process of testing refractive error information, a fixation image can be provided in real time to stabilize the gaze of the tested human eye, coupled with refractive error detection The ring confocal method is adopted, making it more suitable for vision testing of teenagers and children. At the same time, there is no need to quickly switch the optical path when measuring the eye axis, and there is no need to use a galvanometer to switch the optical path between the anterior segment and the posterior segment, thereby reducing the difficulty of adjusting the consistency of the optical path, improving stability, and significantly increasing the cost. decline, which is conducive to the promotion and application of this technology product. Accordingly, this technical solution can accurately determine the diopter and measure the axial length of the eye, and has high practical value in detecting myopia in adolescents.

Preferably, the diopter detection light path includes a light source component for generating a detection light signal, and a mesoporous reflector arranged along the propagation direction of the detection light signal and for guiding the detection light signal into the human eye under test. And form a refractive path definition module for the reflected light signal to return to the original path of the mesopore reflector, and also include a refractive error signal acquisition module, the refractive error signal acquisition module is used to receive the reflected light signal entering the Part of the signal light emitted from the middle hole reflector is used to obtain the refractive error information of the human eye under test smoothly.

Preferably, the light source assembly includes a movable refractive detection light source, a movable focusing lens, a movable annular diaphragm and a first lens arranged along the propagation direction of the detection light signal; the movable annular diaphragm is used as the optical path imaging device , can reduce the cost, and combined with the movable refractive detection light source and the movable focusing lens, greatly facilitates the accurate detection of the refractive error of the human eye under test.

Preferably, the refractive path definition module includes a third beam splitter, a second beam splitter, the first beam splitter and the eye lens arranged along the propagation direction of the detection light signal; after such arrangement, after passing through the third beam splitter, The detection light signal emitted from a lens can enter the third beam splitter after being reflected by the middle hole mirror. The third beam splitter reflects again, passes through the second beam splitter and the first beam splitter, and is projected to the eye lens through the eye lens. In the human eye; the movable annular diaphragm can then focus the image on the fundus, causing the fundus reflected light to return along its original path. When passing through the mesopore reflector, part of the fundus reflected light can be transmitted through the middle hole of the mesopore reflector and enter the refractive error. The signal acquisition module is received.

Preferably, the refractive error signal collection module includes a reflector arranged along the light propagation direction, a second lens, a first movable lens, a third lens and a first image sensor; after such arrangement, part of the fundus reflected light can It is transmitted through the middle hole of the middle hole mirror, and after reflection by the mirror, it passes through the second lens, the first movable lens, and the third lens one by one, and is finally received by the first image sensor. At this point, the refraction of the human eye under test can be obtained logically. Incorrect information.

Preferably, the sight mark optical path includes a movable sight mark arranged along the light propagation direction, a fourth lens, the third beam splitter, the second beam splitter, the first beam splitter and the eye lens. ; Setting up movable visual targets can provide corresponding fixation images according to people with different vision characteristics, achieve a stable gaze effect, and provide technical support for the acquisition of refractive error information.

Preferably, the movable sight mark, the movable refractive detection light source, the movable focusing lens, the movable annular diaphragm and the first movable lens are set to move synchronously; in this way, detection Refractive error provides a flexible object-image conjugate scene, which can effectively obtain refractive error information based on the characteristics of the subject's eyes.

Preferably, the eye position imaging light path includes a first periorbital illumination light source and a second periorbital illumination light source, and the first periorbital illumination light source and the second periorbital illumination light source irradiate the human eye under test, To form a reflected irradiation light signal, the eye position imaging optical path further includes the eye lens, the first beam splitter, the fifth lens and a second image sensor arranged along the propagation direction of the reflected irradiation light signal, and An illumination light source and a first detector arranged symmetrically and tilted relative to the axis of the human eye under test; the second image sensor is used to monitor the position of the human eye under test and guide the operator and the person being tested to move the human eye under test The human eye is aligned with the central axis of the eye lens, and the first detector is used to receive the reflected signal image of the human eye under test caused by the illumination light source; in this way, the three-dimensional positioning of the human eye under test is achieved, and , the light from the illumination source is reflected by the cornea of the eye and then enters the position detector. Since changes in the front and back position of the eye will cause changes in signal distribution in the detector, the detector can accurately monitor the front and back position of the eye relative to the eye lens, that is, the cornea. The distance to the eye lens.

Preferably, the posterior segment OCT measurement optical path includes an OCT optical path light source arranged along the light propagation direction and an optical fiber coupler for dividing the optical signal emitted by the OCT optical path light source into a sample optical signal and a reference optical signal and outputting them, while It also includes a sixth lens, a galvanometer, a second movable lens, the second beam splitter, the first beam splitter and the eyepiece lens arranged along the propagation direction of the sample optical signal, and along the reference The seventh lens, the movable reference mirror, and the second detector connected to the optical signal of the optical fiber coupler are arranged in the propagation direction of the optical signal; the sample optical signal enters the posterior segment area of the human eye under test and is reflected The sample reflected optical signal is formed and then returned to the optical fiber coupler along the original path. The reference optical signal is reflected by the movable reference mirror. The reference reflected optical signal is formed and then returned to the optical fiber coupler along the original path. The sample is reflected The optical signal and the reference reflected optical signal interfere at the optical fiber coupler to form a coherent optical signal, and the second detector is used to acquire the coherent optical signal; after such an arrangement, the OCT image of the retina of the human eye under test can be effectively collected. , combined with the cornea collected by the eye position imaging optical path, the axial length of the eye can be calculated, thus achieving the simultaneous collection of anterior segment signals and posterior segment signals.

The technical solution of the eye vision detection method provided by the present invention is as follows:

An eye vision detection method, based on the refractive error detection device described in the technical solution of this application, includes the following steps:

Step 1: The operator determines the position of the human eye under test through the eye position imaging light path and guides the completion of the position alignment of the human eye under test;

Step 2: Make the human eye under test stably gaze through the optotype light path, and detect the refractive error information of the human eye under test through the diopter detection light path, and obtain the refractive error corresponding to the human eye under test. Photo-incorrect information detection results;

Step 3: Synchronize the use of the eye position monitoring light path to obtain the cornea image information of the human eye under test and the posterior segment OCT measurement light path to obtain the retinal OCT imaging information of the human eye under test;

Step 4: Calculate the axial length of the human eye under test based on the corneal image information and the retinal OCT imaging information, combined with the posterior segment OCT measurement optical path structural characteristics;

Step 5: Use the refractive error information detection result and the axial length of the eye to draw a conclusion about the visual acuity of the human eye under test.

Using the above technical solution, compared with the existing technology, the technical solution provided by the present application can at least bring about the following beneficial effects: This solution is based on the refractive error detection device described in the technical solution of the present application, by first measuring the diopter , then collect retinal images, and finally obtain the axial length of the eye, which greatly reduces the cost when measuring diopter and eye circumference, and has high accuracy in assessing the degree of myopia in teenagers.

Description of the drawings

Figure 1 is a schematic diagram of the optical path structure of an eye refractive error detection device according to the present invention;

Figure 2 is a schematic structural diagram of the diopter detection optical path in an eye refractive error detection device of the present invention;

Figure 3 is a periocular imaging diagram obtained by an eye refractive error detection device of the present invention;

Figure 4 is a ring image of fundus reflection obtained by an eye refractive error detection device according to an embodiment of the present invention;

Figure 5 is a retinal OCT image obtained by an eye refractive error detection device according to an embodiment of the present invention.

Among them, the numbers marked in the figure respectively represent: 1. Human eye under test; 4. Eye lens; 5. First beam splitter; 6. Fifth lens; 7. Second image sensor; 8. Second beam splitter ; 9. The third beam splitter; 10. The fourth lens; 11. Movable sight mark; 13. Middle hole reflector; 14. First lens; 15. Movable annular diaphragm; 16. Movable focusing lens; 17 , movable refractive detection light source; 18. Reflector; 19. Second lens; 20. First movable lens; 21. Third lens; 22. First image sensor; 23. Second movable lens; 24. Galvanometer; 25. Sixth lens; 26. OCT optical path light source; 27. Second detector; 28. Seventh lens; 29. Movable reference mirror; 30. Fiber optic coupler; 31. Light source assembly; 32. Diopter Path definition module; 33. Refractive error signal acquisition module; 201. Illumination source; 202. First detector; 301. First periorbital illumination source; 302. Second periorbital illumination source; 3012. Sample arm port; 3013 , light source arm port; 3014, reference arm port; 3015, detection arm port.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

An eye refractive error detection device provided by an embodiment of the present invention includes an eye lens 4 and a first beam splitter 5. In addition, the eye lens 4 and the first beam splitter 5 are common components and are arranged side by side:

The diopter detection light path used to obtain the refractive error information of the human eye under test 1;

Optotype light path used to provide a fixation image for the human eye 1 to be tested and to stabilize the gaze of the human eye 1 under test;

Eye position monitoring optical path used for three-dimensional positioning of the human eye 1 under test and obtaining corneal imaging information of the human eye 1 under test;

Posterior segment OCT measurement light path used to collect image information of the posterior segment area of 1 eye of the human eye under test.

In this embodiment, the diopter detection optical path includes a light source component 31 arranged along the light propagation direction for generating a detection light signal, a middle hole reflector 13 and a medium hole reflector 13 for guiding the detection light signal into the human eye being measured and forming the original path of the reflected light signal. The refractive path definition module 32 returns to the mesobore reflector 13; it also includes a refractive error signal acquisition module 33. The refractive error signal collection module 33 is used to receive part of the signal emitted after the reflected light signal enters the mesobore reflector 13. Light.

In this embodiment, the light source assembly 31 includes a movable refraction detection light source 17 arranged along the light propagation direction, a movable focusing lens 16, a movable annular diaphragm 15 and a first lens 14. The movable refraction detection light source 17 is a movable near-infrared LED light source with a wavelength of 810-870nm. The light-transmitting area of the movable annular diaphragm 15 is a ring, the inner diameter of the ring is 2-3mm, and the width of the ring is 0.3-0.4mm.

In this embodiment, the refractive path definition module 32 includes a third beam splitter 9 , a second beam splitter 8 , a first beam splitter 5 and an eyepiece lens 4 arranged along the propagation direction of the detection light signal. The refractive error signal collection module 33 includes a reflector 18, a second lens 19, a first movable lens 20, a third lens 21 and a first image sensor 22 arranged along the light propagation direction. The detection light signal is projected into the human eye through the eye lens 4, and the movable annular diaphragm 15 focuses the image on the fundus, forming the fundus reflected light to return to the original path. When passing through the middle hole reflector 13, part of the returned light is transmitted through the middle hole, and then reflected The mirror 18 reflects and the second lens 19 focuses, and finally a ring image reflected by the fundus is formed in the first image sensor 22 via the first movable lens 20 and the third lens 21 .

In this embodiment, the optical path of the visual target includes a movable visual target 11 arranged along the light propagation direction, a fourth lens 10 , a third beam splitter 9 , a second beam splitter 8 , a first beam splitter 5 and an eyepiece lens 4 . In this embodiment, the movable visual mark 11, the movable refraction detection light source 17, the movable focusing lens 16, the movable annular diaphragm 15 and the first movable lens 20 are set to move synchronously.

In this embodiment, the eye position imaging light path includes a first periorbital illumination light source 301 and a second periorbital illumination light source 302. The first periorbital illumination light source 301 and the second periorbital illumination light source 302 irradiate the human eye under test to form a reflection. The irradiation light signal and eye position imaging optical path also include an eye lens 4, a first beam splitter 5, a fifth lens 6 and a second image sensor 7 arranged along the propagation direction of the reflected irradiation light signal, and relative to the eye axis of the person being measured The illumination light source 201 and the first detector 202 are symmetrically tilted; the second image sensor 7 is used to monitor the position of the human eye under test, and guide the operator and the person being tested to align the human eye under test with the central axis of the eye lens 4, The first detector 202 is used to receive the reflected signal image of the human eye under test caused by the illumination light source 201.

In this embodiment, the posterior segment OCT measurement optical path includes an OCT optical path light source 26 arranged along the light propagation direction and an optical fiber coupler 30 for dividing the optical signal emitted by the OCT optical path light source 26 into a sample optical signal and a reference optical signal and outputting them. At the same time, it also includes a sixth lens 25, a galvanometer 24, a second movable lens 23, a second beam splitter 8, a first beam splitter 5 and an eyepiece lens 4 arranged along the propagation direction of the sample optical signal, as well as along the propagation direction of the reference optical signal. The seventh lens 28 set in the direction, the movable reference mirror 29 and the second detector 27 connected with the optical signal of the optical fiber coupler 30; the sample optical signal enters the posterior segment area of the human eye under test and is reflected to form a sample reflected optical signal. Then the original path returns to the fiber coupler 30. The reference light signal is reflected by the movable reference mirror 29 to form a reference reflected light signal and then returns to the fiber coupler 30. The sample reflected light signal and the reference reflected light signal are in the fiber coupler 30. The interference forms a coherent light signal, and the second detector 27 is used to acquire the coherent light signal.

In this embodiment, the fiber coupler 30 is provided with a sample arm port 3012, a light source arm port 3013, a reference arm port 3014 and a detection arm port 3015. The optical signal emitted by the OCT optical path light source 26 enters the fiber coupler 30 through the light source arm port 3013. After processing, a part is emitted through the sample arm port 3012 and enters the sixth lens 25; the other part is emitted through the reference arm port 3014 and enters the seventh lens 28; the coherent optical signal is transmitted to the second detector 27 through the detection arm port 3015.

This embodiment provides a method for detecting eye vision, based on the refractive error detection device provided by this embodiment, including the following steps:

Step 1: The operator determines the position of the human eye 1 under test through the eye position imaging light path and guides the completion of the position alignment of the human eye 1 under test;

Step 2: Make the tested human eye 1 gaze stably through the optotype optical path, and detect the refractive error information of the tested human eye through the diopter detection optical path to obtain the refractive error information detection result corresponding to the tested human eye 1;

Step 3: Synchronously use the eye position monitoring light path to obtain the cornea image information of the human eye 1 under test and use the posterior segment OCT measurement light path to obtain the retinal OCT imaging information of the human eye 1 under test;

Step 4: Calculate the axial length of the measured human eye based on the corneal image information and retinal OCT imaging information, combined with the optical path structural characteristics measured by posterior segment OCT;

Step 5: Use the refractive error information detection results and axial length of the eye to draw conclusions about the visual acuity of the person being tested.

Specifically, the operator first determines the eye position through the eye position imaging light path and guides the subject to complete the eye position alignment. After the eye alignment, the measurement process is started; first, the diopter measurement is performed, and according to the ring image in the first image sensor 22 Preliminarily calculate the diopter, and move the movable sight mark 11, the movable refraction detection light source 17, the movable focusing lens 16, the movable annular diaphragm 15 and the first movable lens 20 back and forth according to the preliminary calculated diopter, that is, Figure 1 Components in the dotted box, and then accurately measure the eye diopter; after completing the diopter measurement, move the second movable lens 23 according to the eye diopter to focus the OCT measurement light on the retina, and then adjust the position of the movable reference mirror 29, and in the second detection The interference signal is obtained from the detector 27; then the retinal OCT image is collected, and the signal from the detector 202 is simultaneously collected to accurately calculate the corneal distance. Accurately calculate the axial length of the eye based on the retinal image, reference mirror position and corneal distance.

When calculating the axial length of the eye, the prerequisite for forming a fundus interference image is that the optical path lengths of the sample arm and the reference arm are approximately equal, that is, the optical path difference is less than the coherence length of the light source. The optical path of the reference arm is determined by the position of the reference mirror Zref. The optical path of the sample arm is the sum of the distance Zc from the front surface of the cornea to the device (relative zero point) and the axial length L. Therefore, when forming an OCT interference image, there is;

Zref+Δ＝Zc+L

, where Δ is the position of the front retinal surface in the OCT image, so the axial length of the eye is;

L＝Zref+Δ-Zc

, in this scheme, Zc can be accurately calculated from the anterior segment image.

In this embodiment, the second detector 27 is a spectrum detector, detecting a spectrum wavelength range of 800-880 nm. The second image sensor 7 is an area array image sensor. According to the image, the eye position can be accurately monitored and the operator can be guided to align the subject's eyes with the central axis of the optical path of the device.

In summary, although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and changes can be made to the embodiments without departing from the principles and spirit of the invention. Alterations and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. An eye refractive error detection device comprises an eye lens (4) and a first spectroscope (5), and is characterized in that: the lens is characterized by also comprising a common element of the eye lens (4) and the first spectroscope (5) which are arranged in parallel:

based on a circular confocal mode, a diopter detection light path for acquiring the diopter error information of the detected human eye;

the optotype light path is used for providing a fixation image for the detected human eye and enabling the detected human eye to stably watch;

the eye position monitoring light path is used for carrying out three-dimensional positioning on the detected human eye and acquiring cornea imaging information of the detected human eye;

and the optical path for measuring the OCT of the posterior segment of the eye to be measured is used for collecting the image information of the posterior segment of the eye to be measured.

2. The refractive error detection apparatus according to claim 1, wherein: the diopter detection light path comprises a light source assembly (31) for generating detection light signals, a mesoporous reflector (13) arranged along the propagation direction of the detection light signals, and a Qu Guanglu path definition module (32) for guiding the detection light signals to enter the detected human eyes and forming reflected light signal paths to return into the mesoporous reflector (13), and also comprises a ametropia signal acquisition module (33), wherein the ametropia signal acquisition module (33) is used for receiving part of signal light emitted after the reflected light signals enter the mesoporous reflector (13).

3. The refractive error detection apparatus according to claim 2, wherein: the light source assembly (31) includes a movable refraction detection light source (17), a movable focusing lens (16), a movable annular diaphragm (15), and a first lens (14) disposed along a direction in which the detection light signal propagates.

4. A refractive error detection apparatus according to claim 3, characterized in that: the Qu Guanglu path definition module (32) comprises a third spectroscope (9), a second spectroscope (8), the first spectroscope (5) and the eye lens (4) which are arranged along the propagation direction of the detection light signals.

5. The refractive error detection apparatus according to claim 4, wherein: the refractive error signal acquisition module (33) comprises a reflecting mirror (18), a second lens (19), a first movable lens (20), a third lens (21) and a first image sensor (22), wherein the reflecting mirror (18), the second lens (19), the first movable lens (20), the third lens (21) and the first image sensor are arranged along the transmission direction of the reflected light signal emitted after entering the mesoporous reflecting mirror (13).

6. The refractive error detection apparatus according to claim 5, wherein: the optotype light path comprises a movable optotype (11), a fourth lens (10), a third spectroscope (9), a second spectroscope (8), a first spectroscope (5) and an eye lens (4) which are arranged along the propagation direction of an optotype signal.

7. The refractive error detection apparatus according to claim 6, wherein: the movable optotype (11), the movable refraction detection light source (17), the movable focusing lens (16), the movable annular diaphragm (15) and the first movable lens (20) are set to move in synchronization.

8. The refractive error detection apparatus according to claim 7, wherein: the eye position imaging optical path comprises a first eye circumference illumination light source (301) and a second eye circumference illumination light source (302), the first eye circumference illumination light source (301) and the second eye circumference illumination light source (302) irradiate the tested human eye to form a reflected irradiation light signal, the eye position imaging optical path further comprises the eye receiving lens (4), the first spectroscope (5), the fifth lens (6) and the second image sensor (7) which are arranged along the propagation direction of the reflected irradiation light signal, and an illumination light source (201) and a first detector (202) which are symmetrically arranged relative to the central axis of the tested human eye; the second image sensor (7) is used for monitoring the position of the detected human eye and guiding an operator and a detected person to align the detected human eye with the central axis of the eye lens (4), and the first detector (202) is used for receiving the reflected signal image of the detected human eye caused by the illumination light source (201).

9. The refractive error detection apparatus according to claim 8, wherein: the optical path for measuring the OCT of the posterior segment of the eye comprises an OCT optical path light source (26) arranged along the light propagation direction, an optical fiber coupler (30) for dividing an optical signal emitted by the OCT optical path light source (26) into a sample optical signal and a reference optical signal and outputting the sample optical signal, a sixth lens (25), a galvanometer (24), a second movable lens (23), the second spectroscope (8), the first spectroscope (5) and the eye lens (4) arranged along the light propagation direction, a seventh lens (28), a movable reference mirror (29) and a second detector (27) which are in optical signal conduction with the optical fiber coupler (30) arranged along the light propagation direction; the sample optical signal enters the rear section area of the eye of the tested person, the sample reflected optical signal is formed by reflection and then returned to the optical fiber coupler (30), the reference optical signal is reflected by the movable reference mirror (29), the reference reflected optical signal is formed and then returned to the optical fiber coupler (30), the sample reflected optical signal and the reference reflected optical signal interfere with each other in the optical fiber coupler (30) to form a coherent optical signal, and the second detector (27) is used for acquiring the coherent optical signal.

10. A visual acuity testing method is characterized in that: a refractive error detection device based on any one of claims 1-9, comprising the steps of:

step one, an operator judges the position of the detected human eye through the eye position imaging light path and guides the completion of the position alignment of the detected human eye;

step two, stably gazing the tested human eye through the optotype light path, and detecting the refractive error information of the tested human eye through the diopter detection light path to obtain a refractive error information detection result corresponding to the tested human eye;

step three, synchronously acquiring cornea image information of the eye of the tested person by using the eye position monitoring light path and OCT imaging information of the retina of the eye of the tested person by using the eye posterior segment OCT measuring light path;

step four, calculating the length of the eye axis of the detected human eye according to the cornea image information and the retina OCT imaging information and combining the optical path structural characteristics of the OCT measurement of the posterior segment of the eye;

and fifthly, judging the vision of the tested human eye by utilizing the refractive error information detection result and the eye axis length.