Device for screening eye disease occurrence risk by using smart phone and operation method

Abstract

The invention relates to a device for screening eye disease occurrence risks through a smart phone and an operation method, and belongs to the technical field of ophthalmology department auxiliary devices. The device is structurally characterized in that the back surface of the intelligent mobile phone with magnetic charging and discharging is connected with a magnetic base in a magnetic manner; the upper surface of the magnetic base is sequentially connected with a turntable and a lighting disc; the magnetic attraction base is rotationally matched with the rotating disc through a rotating column arranged on the outer circumference; a wireless charging device is arranged in the magnetic attraction base, and a power supply of the wireless charging device enables the turntable and the lighting disc to realize power supply communication through an electrode ring and an elastic contact structure; the lighting disc can coaxially rotate relative to the rotating disc, and an LED lamp set is arranged on the lighting disc. The device can be magnetically attracted to the back face of the intelligent mobile phone with the wireless charging and discharging function to charge the whole device, the lighting disc is rotated to the back face of a designated mobile phone camera through the connecting rotary disc, meanwhile, a continuous power source is provided for the lighting disc, and continuous work of eye disease detection is guaranteed.

Description

Technical Field

[0001] The present invention relates to a device and an operating method for screening the risk of eye diseases using a smartphone, and belongs to the technical field of ophthalmic auxiliary devices. Background Art

[0002] Early diagnosis of eye diseases is a major global health challenge. Traditionally, ophthalmologists diagnose common eye conditions such as cataracts, glaucoma, and dry eye using instruments such as slit lamp microscopes to examine and diagnose patients. However, these devices are difficult to use, expensive, and inconvenient to use, making them difficult to implement for home self-examination, community screening, and remote diagnosis. With the aging population and the increasing number of patients with chronic diseases, there is an urgent need for intelligent and efficient screening methods. Smartphones are rapidly evolving, equipped with high-resolution cameras and advanced image processing technology. Combined with certain mobile software, these devices have the potential to help doctors quickly detect eye diseases. Researchers have developed smartphone accessories that attach to mobile phones to capture images of the anterior segment or fundus. However, these products often have a single light source structure and cannot be modified to specifically address specific eye conditions, making it difficult to obtain satisfactory imaging data. For example, patent number CN201710098623.0 is a portable digital slit lamp for cataract screening. The setting of a single and fixed-angle slit light source makes the photos taken by mobile phones dim and unclear in details. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device and operating method for screening the risk of eye diseases using a smartphone. The device can be magnetically attracted to the back of a smartphone with wireless charging and discharging to charge the entire device, and the lighting disc can be rotated to the back of a designated mobile phone camera through a connecting turntable, while providing continuous power to the lighting disc to ensure continuous operation of eye disease detection.

[0004] To solve the above problems, the specific technical solutions created by the present invention are as follows: a device for screening the risk of eye diseases using a smartphone, characterized in that: a magnetic base is magnetically connected to the back of a smartphone with magnetic charging and discharging; the upper surface of the magnetic base is connected to a turntable and a lighting disc in sequence; the magnetic base and the turntable rotate in coordination through a rotating column arranged on the outer circumference; a wireless charging device is provided in the magnetic base, and the positive and negative poles of the wireless charging device are connected to a first elastic contact through a wire; a macro lens is clamped in the through hole in the center of the turntable, and the center of the macro lens corresponds to the center position of the rear camera of the smartphone; a large electrode ring with positive and negative poles is provided on the front of the turntable; a small electrode ring with positive and negative poles is provided on the outside of the turntable, and the positive and negative poles of the large electrode ring and the small electrode ring are correspondingly connected through a power cord; the small electrode ring is coaxial with the rotating column, and the positive and negative electrode rings of the small electrode ring are respectively in contact with the first elastic contact; a through hole is provided in the center of the lighting disc, an LED light group is provided on the outer surface of the lighting disc and located on the periphery of the through hole, and a lighting main circuit board is provided in the lighting disc, The LED light group is connected to the main lighting circuit board, and the positive and negative poles of the main lighting circuit board circuit are connected with a second elastic contact; the second elastic contact is connected to the positive and negative electrode rings of the large electrode ring; the lighting disc and the turntable are connected by magnetic attraction or peripheral clamping, so that the second elastic contact on the main lighting circuit board and the large electrode ring in the turntable are in contact with each other to draw electricity. The lighting disc can rotate coaxially relative to the turntable, and the second elastic contact and the large electrode ring maintain continuous contact during the rotation.

[0005] The wireless charging device includes a wireless charging coil and a charging circuit board. The power input end of the charging circuit board is connected to the wireless charging coil, and the output end of the charging circuit board is connected to the first elastic contact through a power line.

[0006] The positive and negative poles of the first elastic contact are located on the base connected to the rotating column, and the small electrode ring is arranged horizontally and contacts the first elastic contact; or the positive and negative poles of the first elastic contact are located on the rotating column, and the small electrode ring is arranged vertically and contacts the first elastic contact.

[0007] The magnetic base is provided with a C-shaped magnet or a point-distributed magnet, which is attracted to the magnetic ring of the mobile phone case of the smart phone.

[0008] A rechargeable lithium battery charging module is provided in the magnetic base, and the output end of the rechargeable lithium battery charging module is connected to the charging port through a charging circuit board; the charging port extends out of the outer circumference of the magnetic base through the opening of the C-shaped magnet.

[0009] The LED light group of the lighting disc includes at least one white light LED lamp and one blue light LED lamp; a switch button and an adjustment knob are provided on the lighting main circuit board, the switch button switches and controls the LED lights in different positions, and the adjustment knob controls the brightness of the turned-on LED lights.

[0010] The LED lamp group has two white light LED lamps, which are located in the lighting disc. The outer shell of the upper surface of the lighting disc has corresponding hollow holes; a grid is provided on the hollow hole of one of the white light LED lamps to divide the light source surface and make the light source reflection point characteristic; a polarizing film I is provided on the hollow hole of the other white light LED lamp, and the observation hole in the center of the lighting disc is provided with a polarizing film II placed orthogonally to the polarizing film I.

[0011] An opening groove is provided on the upper surface of the lighting disc, and a slit light module is provided at the opening groove; the slit light module includes a slit shell, a slit LED lamp and an optical cylindrical lens; the slit LED lamp is located at the lower part of the inner cavity of the slit shell, and the optical cylindrical lens is located at the upper part of the inner cavity of the slit shell, and a partition is provided between the slit LED lamp and the optical cylindrical lens, and a slit seam parallel to the axis of the optical cylindrical lens is provided on the partition; the positive and negative poles of the slit LED lamp are connected to the third elastic contact; two parallel arrangements are provided at the corresponding opening grooves in the inner cavity of the lighting disc. A connecting ear piece is provided on both sides of the slit shell, and a positioning column is provided, which cooperates with the connecting ear piece; a slit light-induced electricity circuit board is provided between the two connecting ear pieces, and an electrode slide groove is provided on the top of the slit light-induced electricity circuit board, and the third elastic contact is flipped over and contacts with the electrode slide groove of the slit light-induced electricity circuit board; a pin is provided at the side end of the slit light-induced electricity circuit board, and the pin is connected to the main lighting circuit board for electricity, or a fourth elastic contact is provided at the bottom of the slit light-induced electricity circuit board, and the fourth elastic contact extends out of the lighting disc and is connected to the positive and negative circuits of the large electrode ring.

[0012] The upper surface of the lighting disc is magnetically attracted or the outer circumference is clamped to the surface light source disk; the upper surface of the surface light source disk is a light guide plate, and an LED light strip is provided inside the surface light source disk. The positive and negative poles of the circuit of the LED light strip are provided with a fifth elastic contact extending from the lower surface of the surface light source disk; a light guide plate power contact is provided on the upper surface of the lighting disc, and the upper surface of the light guide plate power contact is provided with an electrode slide connected to the fifth elastic contact, and the lower surface of the light guide plate power contact is connected to the circuit of the main lighting circuit board.

[0013] The method for operating the device for screening eye disease risks using a smartphone comprises the following steps: Step 1: Set your smartphone to charging mode, then attach the magnetic base of the device to the back of the phone case. Step 2: Rotate the magnetic base and turntable simultaneously, and adjust the turntable position to ensure that the center macro lens is concentric with the rear camera of the phone; Step 3: Attach or clip the lighting disc to the upper surface of the turntable and keep it in circuit connection with the turntable; rotate the lighting disc so that the lighting is in the required direction; press the switch button to switch a certain LED light in the LED light group on or off, and adjust the brightness of the LED light group by adjusting the knob; or flip the slit light module so that the slit LED light is in circuit connection with the turntable and turn on the slit light projection; or attach the surface light source disk to the lighting disc so that the LED light strip is in circuit connection with the turntable; Step 4: Illuminate the patient's eyes with one of the LED lights in the LED light group, the slit LED light or the reflective light disk, form an image through a macro lens, and take a picture of the eye using a mobile phone.

[0014] The device for screening eye disease risks using a smartphone in this application adopts the above structure and has the following advantages: 1. The magnetic base and the connecting turntable are connected by a rotating column. Through the relative rotation adjustment between the two, the center of the macro lens at the center of the connecting turntable is concentric with the rear lens of the camera, ensuring that clear images are presented after eye disease detection; 2. The magnetic base is equipped with a wireless charging device, a first elastic contact, and positive and negative rings of the connecting turntable. This allows the connecting turntable to rotate at any angle and transfer the power of the mobile phone to the device, achieving continuous power supply. 3. Various functional lighting devices are set on the lighting disc to facilitate the detection of eye diseases. A second elastic contact is set on the lighting disc to contact the positive and negative electrode rings. The lighting disc can continuously provide power to the main lighting circuit board when it rotates to any angle relative to the turntable; 4. The lighting equipment includes white light LED lamps, grid and polarized light, blue light LED lamps and slit lamps. Their reasonable layout effectively saves the space occupied by each functional module and reduces the overall equipment volume; 5. A surface light source disk is provided on the upper surface of the lighting disk to further enhance the function of detecting eye diseases. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall exploded view of Examples 1 to 3 of the present application.

[0016] Figure 2 This is an exploded view of the magnetic base.

[0017] Figure 3 This is a stereoscopic image of the turntable from above.

[0018] Figure 4 This is a stereoscopic view of the turntable from the downward direction.

[0019] Figure 5 Exploded view of the lighting disc.

[0020] Figure 6 This is a stereoscopic view of the main lighting circuit board and the slit light guide circuit board as seen from below.

[0021] Figure 7 It is a schematic diagram of the structure of each LED lamp in the LED lamp group.

[0022] Figure 8 This is another plug-in structure diagram of the slit light-induced power circuit board.

[0023] Figure 9 This is a cross-sectional view of the slit light module.

[0024] Figure 10 This is an overall exploded view of Example 4 of the present application.

[0025] Figure 11 Exploded view of a diffusely lit disk.

[0026] Figure 12 This is a diagram showing the position relationship of each electric shock.

[0027] Figure 13 This is a photo of cataract diagnosis using a grid light source in white light mode.

[0028] Figure 14 Screening photos for eye diseases in polarized light mode.

[0029] Figure 15 Screening photos for eye diseases in blue light mode.

[0030] Figure 16 Screening photos for eye diseases in white light mode.

[0031] Figure 17 Screening photographs for eye diseases in slit-light mode.

[0032] Figure 18 This is a photo of eye disease screening using the surface light source light panel mode. DETAILED DESCRIPTION Example 1

[0033] like Figure 1 As shown, a device for screening the risk of eye diseases using a smartphone is provided. A magnetic base 1 is magnetically connected to the back of a smartphone with magnetic charging and discharging function. A turntable 2 and an illuminating disc 3 are sequentially connected to the upper surface of the magnetic base 1. The magnetic base 1 and the turntable 2 are rotatably engaged via a rotating column 14 provided on the outer circumference. The relative rotation between the two allows the center of the macro lens connected to the center of the turntable to be concentric with the rear lens of the camera. A wireless charging device 13 is provided within the magnetic base 1 to enable reverse charging via a smartphone. The positive and negative poles of the wireless charging device 13 are connected to a first elastic contact 16 via a wire. like Figure 2As shown, the wireless charging device 13 includes a wireless charging coil 131 and a charging circuit board 132 . The power input end of the charging circuit board 15 is connected to the wireless charging coil 13 , and the output end of the charging circuit board 15 is connected to the first elastic contact 16 via a power line.

[0034] like Figure 3 and Figure 4 As shown, a macro lens 26 is clamped in the through hole at the center of the turntable 2. The center of the macro lens 26 corresponds to the center position of the rear camera of the smartphone. The macro lens 26 can be replaced according to actual needs. A large electrode ring 22 with positive and negative poles is provided on the front of the turntable 2. A small electrode ring 23 with positive and negative poles is provided on the outside of the turntable 2. The positive and negative poles of the large electrode ring 22 and the small electrode ring 23 are correspondingly connected via a power line. The small electrode ring 23 is coaxial with the rotating column 14, and the positive and negative electrode rings of the small electrode ring 23 are respectively in contact with the first elastic contact 16. The positive and negative poles of the first elastic contact 16 are located on the base 17 connected to the rotating column 14, and the small electrode ring 23 is arranged horizontally and in contact with the first elastic contact 16; or the positive and negative poles of the first elastic contact 16 are located on the rotating column 14, and the small electrode ring 23 is arranged vertically and in contact with the first elastic contact 16. Figure 2 As shown, in this embodiment, the first elastic contact 16 is arranged outside the rotating column 14 , and when the turntable 2 rotates at any angle, the positive and negative electrode rings of the small electrode ring 23 are always in contact with the first elastic contact 16 .

[0035] like Figure 5 and Figure 6 As shown, a through hole is provided in the center of the lighting disc 3, an LED light group is provided on the outer surface of the lighting disc 3 and at the periphery of the through hole, a main lighting circuit board 32 is provided in the lighting disc 3, the LED light group is connected to the main lighting circuit board 32, and the positive and negative poles of the circuit of the main lighting circuit board 32 are connected by a second elastic contact 35; the second elastic contact 35 is connected to the positive and negative electrode circles of the large electrode ring 22.

[0036] The lighting disc 3 is connected to the turntable 2 by magnetic attraction or peripheral clamping, so that the second elastic contact 35 on the lighting main circuit board 32 contacts the large electrode ring 22 in the turntable 2 to draw electricity. The lighting disc 3 can rotate coaxially relative to the turntable 2, and the second elastic contact 35 and the large electrode ring 22 maintain continuous contact during the rotation.

[0037] like Figure 5 As shown, the LED light group 31 of the lighting disc 3 includes at least one white light LED lamp and one blue light LED lamp; a switch button 34 and an adjustment knob 33 are provided on the lighting main circuit board 32. The switch button 34 switches and controls the LED lights in different positions, and the adjustment knob 33 controls the brightness of the turned-on LED lights.

[0038] like Figure 7 As shown, in the first embodiment, the number of white light LED lamps in the LED lamp group 31 is two, and they are located in the lighting disk 3. The outer shell of the upper surface of the lighting disk 3 has corresponding hollow holes; a grille 31-1 is provided on the hollow hole of one of the white light LED lamps to divide the light source surface and make the light source reflection point characteristic; a polarizing film I31-2 is provided on the hollow hole of the other white light LED lamp, and at the same time, the observation hole in the center of the lighting disk 3 is provided with a polarizing film II31-3 placed orthogonally to the polarizing film I31-2. Example 2

[0039] like Figure 2 As shown, based on the structure of Example 1, a rechargeable lithium battery charging module 18 is installed within the magnetic base 1. The output end of the rechargeable lithium battery charging module 18 is connected to the charging port 19 via a charging circuit board. A C-shaped magnet 12 is installed within the magnetic base 1, and the charging port 19 extends through the opening of the C-shaped magnet 12 and extends out of the outer circumference of the magnetic base 1. To save space, an opening is provided on the annular magnet 6 corresponding to the position of the charging port 8. Therefore, the lithium battery charging and discharging module 7, the charging port 8, and the annular magnet 6 can be arranged in the same plane, saving space. Example 3

[0040] A device that uses a smartphone to screen for the risk of eye disease, such as Figure 5 As shown, based on the structure of the first embodiment, an opening groove is provided on the upper surface of the lighting disc 3, and a slit light module 4 is provided at the opening groove; Figure 8 As shown, the slit light module 4 includes a slit shell 41, a slit LED lamp 42 and an optical cylindrical lens 43; the slit LED lamp 42 is located in the lower part of the inner cavity of the slit shell 41, and the optical cylindrical lens 43 is located in the upper part of the inner cavity of the slit shell 41. A partition is provided between the slit LED lamp 42 and the optical cylindrical lens 43, and a slit slit 44 parallel to the axis of the optical cylindrical lens 43 is provided on the partition; the positive and negative poles of the slit LED lamp 42 are connected to the third elastic contact 45; two parallel connecting ears 36 are provided at the corresponding opening grooves in the inner cavity of the lighting disk 3, and positioning columns 47 are provided on both sides of the slit shell 41, and the positioning columns 47 cooperate with the connecting ears 36; a slit light-induced electricity circuit board 46 is provided between the two connecting ears 36, and an electrode slide groove is provided on the top of the slit light-induced electricity circuit board 46. After the third elastic contact 45 is flipped, it contacts and communicates with the electrode slide groove of the slit light-induced electricity circuit board 46; as shown Figure 6 As shown, a fourth elastic contact 48 is provided at the bottom of the slit light lead circuit board 46, and the fourth elastic contact 48 extends out of the lighting disk 3 and is connected to the positive and negative circuits of the large electrode ring 22. Figure 8 As shown, a pin is provided at the side end of the slit light power circuit board 46 , which is connected to the main lighting circuit board 32 for power supply, so as to avoid the fourth elastic contact 48 being restricted in contact and affecting the operation of the slit LED lamp 42 .

[0041] When the slit LED lamp 42 is turned on, light passes through the slit 44 to form a light surface, and the light surface passes through the optical cylindrical lens 43 to form the requirements of the slit lamp detection, and can complete the slit detection of the patient's eyes. Example 4

[0042] like Figure 10 and Figure 11 As shown, a device for screening the risk of eye diseases using a smartphone is provided. Based on the structure of the first or second embodiment, a surface light source luminous disk 5 is magnetically attracted to the upper surface of the illumination disk 3 or is clamped to the outer circumference thereof. A light guide plate 52 is provided on the upper surface of the surface light source luminous disk 5. An LED light bar 51 is provided inside the surface light source luminous disk 5. The positive and negative poles of the circuit of the LED light bar 51 are provided with fifth elastic contacts 53 extending from the lower surface of the surface light source luminous disk 5. Figure 5 As shown, a light guide plate power contact 38 is provided on the top surface of the lighting disc 3. An electrode slide is provided on the top surface of the light guide plate power contact 38, which communicates with a fifth elastic contact 53. The bottom surface of the light guide plate power contact 38 is connected to the circuit of the main lighting circuit board 32. The LED light strip 51 contacts the fifth elastic contact 53 through the light guide plate power contact 38, transmitting power from the lighting disc 3 to the LED light strip 51, which then generates a diffusely reflected light source through the light guide plate 52.

[0043] like Figure 12 As shown, the power supply of the LED lamp in each embodiment is connected through the corresponding elastic contact. It is not only concentrically arranged with the rear camera of the mobile phone, but also can rotate with the lighting disk 3 and adjust the angle, thereby realizing the functions of each module. Example 5

[0044] An operating method of a device for screening eye disease risk using a smartphone based on embodiments 1 to 4 includes the following steps: Step 1: Set your smartphone to charging mode for other devices, and then attach the magnetic base 1 of the device to the back of the phone case; Step 2: Rotate the magnetic base 1 and the turntable 2 simultaneously, and adjust the position of the turntable 2 to ensure that the central macro lens 26 is concentric with the rear camera of the mobile phone; Step 3: Attach or snap the lighting disc 3 onto the upper surface of the turntable 2 and keep it in circuit connection with the turntable 2; rotate the lighting disc 3 so that the lighting is in the desired orientation; press the switch button 34 to switch a certain LED light of the LED light group 31 on or off, and adjust the brightness of the LED light group 31 by adjusting the knob 33; or flip the slit light module 4 so that the slit LED light 42 is in circuit connection with the turntable 2 and start the slit light projection; or attach the surface light source disk 5 to the lighting disc 3 so that the LED light bar 51 is in circuit connection with the turntable 2; Step 4: Illuminate the patient's eyes with one of the LED lights of the LED light group 31, the slit LED light 42 or the reflective light disk 5, form an image through the macro lens 26, and take a picture of the eye using a mobile phone.

[0045] Among them, the use of each LED light in step three for clinical eye disease diagnosis after it is turned on is further explained.

[0046] Usage method 1: When the white light LED lamp with the grid 31-1 in the LED lamp group 31 is turned on, the grid 31-1 divides the light source surface and makes the light source have two reflective points. This light source is used to determine whether the patient has cataracts by the characteristic of the posterior capsule reflection, that is, the fourth Purkinje image. The judgment method is as follows: Figure 13 As shown, the red arrow in the upper picture indicates that when the lens is transparent, the posterior capsule reflection is two clear light spots separated by a grid; the lower picture shows that when the lens is opaque, that is, in patients with cataracts, the posterior capsule reflection is blurred and the two reflection spots cannot be seen clearly.

[0047] Usage mode 2: When the white light LED lamp in the LED lamp group 31 has a polarizing film I31-2, and the observation hole in the center of the illumination disk 3 is provided with a polarizing film II31-3 placed perpendicularly to the polarizing film I31-2, the use of this polarized light source mode can eliminate the interference of stray light on the skin surface and perform various eyelid disease screening, such as Figure 14 As shown, a patient with basal cell carcinoma of the eyelid. The upper picture shows the reflected image of skin wrinkles illuminated by ordinary white light, and the lower picture shows the polarized light mode, which can reveal blood vessels and other tissues deep in the lesion.

[0048] Usage method three: When the blue LED light in the LED light group 31 is turned on, the ocular surface condition after fluorescein staining can be observed, such as observing corneal epithelial defects, judging the tear film rupture time, and the adaptability of orthokeratology lenses. Figure 15 As shown, the adaptation of orthokeratology lenses is observed.

[0049] Usage mode 4: When the white light LED lamp in the LED lamp group 31 is turned on and the polarizing film I31-2 on it is removed, you can take pictures in this lighting mode to obtain clear diffuse light photos of the anterior segment of the eye, record and screen for anterior segment diseases. Figure 16 Shown is a photograph of the anterior segment of the eye after keratoplasty.

[0050] Usage mode 5: When the slit light module 4 is tilted and turned upward, and the slit LED light 42 is turned on, as shown in FIG. Figure 17 As shown, the anterior chamber depth and lens section morphology were observed under slit light mode.

[0051] Usage mode 6: When the surface light source disk 5 is set on the lighting disk 3 and the LED light bar 51 is turned on, the light source disk 5 generates a uniform surface light. Through the principle of interference light, the lipid layer of the patient's tear film and the height of the tear meniscus can be observed, such as Figure 18 As shown, the images of the tear film lipid layer from grade I to grade IV can also clearly show the tear meniscus and observe the tear meniscus height.

Claims

1. A device for screening for eye disease risk using a smartphone, characterized by: A magnetic base (1) is magnetically connected to the back of a smartphone with magnetic charging and discharging function; a turntable (2) and a lighting disc (3) are sequentially connected to the upper surface of the magnetic base (1); The magnetic base (1) and the turntable (2) are rotatably matched via a rotating column (14) provided on the outer circumference; a wireless charging device (13) is provided in the magnetic base (1), and the positive and negative poles of the wireless charging device (13) are connected to a first elastic contact (16) via a wire; A macro lens (26) is clamped in the through hole at the center of the turntable (2), and the center of the macro lens (26) corresponds to the center position of the rear camera of the smart phone; a large electrode ring (22) with positive and negative poles is provided on the front of the turntable (2); a small electrode ring (23) with positive and negative poles is provided on the outside of the turntable (2), and the positive and negative poles of the large electrode ring (22) and the small electrode ring (23) are connected correspondingly via a power line; the small electrode ring (23) is coaxial with the rotating column (14), and the positive and negative electrode rings of the small electrode ring (23) are in contact with the first elastic contact (16) respectively; The center of the lighting disc (3) is provided with a through hole, an LED light group is provided on the outer surface of the lighting disc (3) and located at the periphery of the through hole, a main lighting circuit board (32) is provided inside the lighting disc (3), the LED light group is connected to the main lighting circuit board (32), and the positive and negative poles of the circuit of the main lighting circuit board (32) are connected with a second elastic contact (35); the second elastic contact (35) is connected to the positive and negative electrode rings of the large electrode ring (22); The lighting disc (3) is connected to the turntable (2) by means of magnetic attraction or peripheral clamping, so that the second elastic contact (35) on the lighting main circuit board (32) contacts the large electrode ring (22) in the turntable (2) to draw electricity. The lighting disc (3) can rotate coaxially relative to the turntable (2), and the second elastic contact (35) and the large electrode ring (22) maintain continuous contact during the rotation.

2. The device for screening eye disease risk using a smartphone according to claim 1, characterized in that: The wireless charging device (13) comprises a wireless charging coil (131) and a charging circuit board (132); a power input end of the charging circuit board (15) is connected to the wireless charging coil (13); and an output end of the charging circuit board (15) is connected to a first elastic contact (16) via a power line.

3. The device for screening eye disease risk using a smartphone according to claim 2, characterized in that: The positive and negative poles of the first elastic contact (16) are located on a base (17) connected to the rotating column (14), and the small electrode ring (23) is arranged horizontally and in contact with the first elastic contact (16); or the positive and negative poles of the first elastic contact (16) are located on the rotating column (14), and the small electrode ring (23) is arranged vertically and in contact with the first elastic contact (16).

4. The device for screening eye disease risk using a smartphone according to claim 1, characterized in that: The magnetic base (1) is provided with a C-shaped magnet (12) or a point-distributed magnet, which is attracted to the magnetic ring of the mobile phone case of the smart phone.

5. The device for screening eye disease risk using a smartphone according to claim 4, characterized in that: A rechargeable lithium battery charging module (18) is provided in the magnetic base (1), and an output end of the rechargeable lithium battery charging module (18) is connected to a charging port (19) via a charging circuit board; the charging port (19) extends through an opening of the C-shaped magnet (12) and out of the outer circumference of the magnetic base (1).

6. The device for screening eye disease risk using a smartphone according to claim 1, characterized in that: The LED light group (31) of the lighting disc (3) includes at least one white light LED light and one blue light LED light; a switch button (34) and an adjustment knob (33) are provided on the lighting main circuit board (32); the switch button (34) switches and controls the LED lights at different positions, and the adjustment knob (33) controls the brightness of the turned-on LED lights.

7. The device for screening eye disease risk using a smartphone according to claim 1, characterized in that: The LED lamp group (31) includes two white light LED lamps, which are located inside the lighting disc (3). The upper surface shell of the lighting disc (3) has corresponding hollow holes. A grid (31-1) is provided on the hollow hole of one of the white light LED lamps to divide the light source surface and make the light source reflection point characteristic. A polarizing film I (31-2) is provided on the hollow hole of the other white light LED lamp. At the same time, a polarizing film II (31-3) is provided in the observation hole at the center of the lighting disc (3) and is placed orthogonally to the polarizing film I (31-2).

8. The device for screening eye disease risk using a smartphone according to claim 1, characterized in that: An opening groove is provided on the upper surface of the lighting disc (3), and a slit light module (4) is provided at the opening groove; the slit light module (4) includes a slit housing (41), a slit LED lamp (42) and an optical cylindrical lens (43); the slit LED lamp (42) is located at the lower part of the inner cavity of the slit housing (41), and the optical cylindrical lens (43) is located at the upper part of the inner cavity of the slit housing (41); a partition is provided between the slit LED lamp (42) and the optical cylindrical lens (43), and a slit slit (44) parallel to the axis of the optical cylindrical lens (43) is provided on the partition; the positive and negative poles of the slit LED lamp (42) are connected to the third elastic contact (45); two connecting electrodes arranged in parallel are provided at the corresponding opening grooves in the inner cavity of the lighting disc (3); The connecting ear piece (36) is provided with positioning posts (47) on both sides of the slit shell (41), and the positioning posts (47) cooperate with the connecting ear piece (36); a slit light-induced electricity circuit board (46) is provided between the two connecting ear pieces (36), and an electrode slide groove is provided on the top of the slit light-induced electricity circuit board (46), and the third elastic contact (45) is turned over and contacts and communicates with the electrode slide groove of the slit light-induced electricity circuit board (46); a pin is provided on the side end of the slit light-induced electricity circuit board (46), and the pin is connected to the main lighting circuit board (32) for electricity, or a fourth elastic contact (48) is provided on the bottom of the slit light-induced electricity circuit board (46), and the fourth elastic contact (48) extends out of the lighting disc (3) and is connected with the positive and negative circuits of the large electrode ring (22).

9. The device for screening eye disease risk using a smartphone according to claim 1, characterized in that: The upper surface of the lighting disc (3) is magnetically attracted or the outer circumference is clamped to the surface light source luminous disc (5); the upper surface of the surface light source luminous disc (5) is a light guide plate (52), an LED light bar (51) is provided in the surface light source luminous disc (5), and the positive and negative poles of the circuit of the LED light bar (51) are provided with a fifth elastic contact (53) extending from the lower surface of the surface light source luminous disc (5); a light guide plate power contact (38) is provided on the upper surface of the lighting disc (3), an electrode slide is provided on the upper surface of the light guide plate power contact (38) and is connected to the fifth elastic contact (53), and the lower surface of the light guide plate power contact (38) is connected to the circuit of the lighting main circuit board (32).

10. The method for operating the device for screening eye disease risk using a smartphone is characterized in that The following steps are involved: Step 1: Set the smartphone to the charging state for other devices, and then attach the magnetic base (1) of the device to the back of the phone case; Step 2: Rotate the magnetic base (1) and the turntable (2) simultaneously, and adjust the position of the turntable (2) to ensure that the central macro lens (26) is concentric with the rear camera of the mobile phone; Step 3: Adsorb or snap the lighting disc (3) onto the upper surface of the turntable (2) and keep it in a circuit connection state with the turntable (2); rotate the lighting disc (3) to place the lighting lamp in a desired orientation; press the switch button (34) to switch a certain LED lamp of the LED lamp group (31) on or off, and adjust the brightness of the LED lamp group (31) by adjusting the knob (33); or flip the slit light module (4) to keep the slit LED lamp (42) in a circuit connection state with the turntable (2) and start the slit light projection; or adsorb the surface light source luminous disc (5) on the lighting disc (3) to keep the LED light bar (51) in a circuit connection state with the turntable (2); Step 4: Illuminate the patient's eyes with one of the LED lights of the luminous LED light group (31), the slit LED light (42) or the reflective light disk (5), form an image through the macro lens (26), and take a picture of the eye using a mobile phone.

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