CN115517625B

CN115517625B - Slit lamp with embedded retina visual acuity chart

Info

Publication number: CN115517625B
Application number: CN202211503446.7A
Authority: CN
Inventors: 朱颖; 陈露; 刘丹
Original assignee: Xiangya Hospital of Central South University
Current assignee: Xiangya Hospital of Central South University
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-21
Anticipated expiration: 2042-11-29
Also published as: CN115517625A

Abstract

The invention discloses a slit lamp with an embedded retina dynamometer, which relates to the field of slit lamps and solves the problem that the eye examination efficiency of a patient is influenced because eyes of some patients are difficult to be opened to a required size by self when the existing slit lamp with the embedded retina dynamometer is used.

Description

Slit lamp with embedded retina optometer

Technical Field

The invention relates to the technical field of slit lamps, in particular to a slit lamp with an embedded retina visual acuity chart.

Background

The slit lamp is also called a slit lamp microscope and is an essential important instrument for ophthalmologic examination. The slit-lamp microscope consists of an illumination system and a binocular microscope, can ensure that superficial lesions can be observed clearly, can adjust the focus and the width of a light source, and is made into an optical section, so that deep tissue lesions can be displayed clearly. For patients with retinal diseases of the eye fundus and cataract simultaneously, the retinal diseases are difficult to be detected due to the cataract, because the cataract's turbid crystalline lens blocks the optical path for examining the eye fundus. Therefore, the focus of the fundus can often be clearly checked after cataract surgery is performed. It can be known from the prior patent CN214104377U that some slit lamps in the prior art have added an embedded retina optometer inside the slit lamp for the convenience of detecting cataract patients.

The existing slit lamp with the embedded retina optometer needs a doctor to carefully observe the insides of eyeballs of patients for a period of time in the process of detecting and observing the eyes of the cataract patients, but because the eyes of some cataract patients are inconvenient to open and close, the eyes of some patients are difficult to open when receiving light irradiation, under the condition, great inconvenience is caused to the observation process, and the efficiency of the inspection and the accuracy of the inspection result are affected. To this end, we propose a slit lamp provided with an embedded retinal optometer.

Disclosure of Invention

The invention aims to provide a slit lamp with an embedded retina visual acuity tester, which is convenient for assisting eyes of special patients such as cataract to open and check, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a slit lamp with embedded retina dynamometer, includes base, adjustment mechanism, opening and closing mechanism and release mechanism, fixedly connected with lamp stand on the base, fixedly connected with lamp body on the lamp stand, the embedded retina dynamometer of fixedly connected with in the lamp body, adjustment mechanism is including installing in support on the base, adjustment mechanism is used for adjusting and fixed patient's head position, opening and closing mechanism is including installing in the eye cover box on the support, fixedly connected with four group's guide block on the eye cover box, four group all have an opening plate along vertical direction sliding connection in the guide block, four group all be equipped with the viscidity sticky tape on the opening plate, opening and closing mechanism is used for with the viscidity sticky tape adhesion respectively with the upper and lower eyelid of patient's both eyes when the support moves two groups of opening plate of lamp body the place ahead position open for this eyelid of patient is in the open mode, makes things convenient for directly observe the eyeball inside, release mechanism is including installing in the storage box that is used for storing eyedrop on the eye cover box, release mechanism is used for after the inspection the eyedrop in the position of viscidity sticky tape is crowded to reduce the viscidity sticky tape's position, the special inspection of patient's removal of the adhesion, the supplementary inspection adhesion of eye that is convenient for the eye that opens the patient.

Preferably, adjustment mechanism include fixed mounting in two sets of regulation seats of support bottom, it is two sets of it is connected with the threaded rod to rotate between the regulation seat, the threaded rod runs through the both sides of lamp stand, and with lamp stand threaded connection, it is two sets of adjust the seat all with horizontal direction sliding connection is followed to the base, and is a set of fixedly connected with driving motor on the regulation seat, driving motor's output with the coaxial fixed connection of one end of threaded rod, be equipped with the die-pin that is used for supporting patient's chin on the support, be convenient for adjust the position of patient's eye and fix.

Preferably, the mechanism that opens and shuts include fixed mounting in the device box at eye-shade box both ends, two sets of the device box respectively with the both sides fixed connection of support, the observation window has been seted up on the eye-shade box, fixedly connected with connecting plate on the opening plate, fixedly connected with mounting panel on the connecting plate, the viscidity sticky tape paste in the side of mounting panel one end, the mounting panel runs through one side of eye-shade box, and with eye-shade box sliding connection, be equipped with on the lamp stand and be used for control the opening and shutting piece of the opening and shutting state of opening and shutting board is convenient for control is supplementary to be waited to examine the state of opening of eye.

Preferably, the opening and closing piece comprises two groups of installation rods fixedly installed on the lamp holder, and is two groups of trapezoidal blocks fixedly connected to the installation rods, fixed plates fixedly connected to the opening and closing plate, drive plates fixedly connected to the sides of the fixed plates, slopes slidably connected to inclined planes of the trapezoidal blocks are formed in the sides of the drive plates, first tension springs fixedly connected to the sides of the eye shield boxes are fixedly connected to the fixed plates, and control pieces used for controlling opening and closing positions of the opening and closing plate are arranged on the opening and closing plate to control opening and closing states of the opening and closing plate conveniently.

Preferably, release mechanism includes four group's stay cords, four groups the one end of stay cord respectively with four groups the side fixed connection of open-close plate is two sets of the sliding tray has all been seted up to the side of device box, sliding tray sliding connection has the stirring piece, and is two sets of the equal fixedly connected with support frame in the upper and lower both sides of device box, run through at the stay cord middle part the one end of support, and with support frame sliding connection, the other end of stay cord with stir a piece fixed connection, be equipped with in the device box and be used for stirring the linkage will during stirring the eyedrop in the storage box is crowded the extrusion piece of viscidity sticky tape position is convenient for remove the fixed to the eyelid after the inspection.

Preferably, the extrusion piece include fixed mounting in transit box in the sliding tray, in the transit box sliding connection have with dial piece side fixed connection's promotion piece, the side fixedly connected with that promotes the piece with transit box inner wall fixed connection's first spring, the side fixedly connected with input tube of transit box, the both ends of input tube respectively with store the box with the transit box is linked together, the side intercommunication of transit box is connected with two sets of hoses, and is two sets of the one end of hose respectively with connecting plate fixed connection, the mounting panel with all seted up on the connecting plate the output tube that multiunit and hose one end are linked together, be convenient for link when dialling the piece will store the interior eyedrop of box crowded viscidity sticky tape position.

Preferably, the control include fixed mounting in the bottom plate and the roof at split plate both ends, the bottom plate with the roof is located respectively the both sides position of guide block is convenient for control split plate open and shut the position for when the split plate is opened completely the bottom plate is contradicted with the guide block, and roof and guide block are contradicted when closed completely.

Preferably, the adjusting mechanism further comprises a binding band fixedly arranged on the device boxes on two sides and used for fixing the head position of the patient, so that the head of the patient can be conveniently fixed, and the patient with a certain active child can be prevented from shaking during examination.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the slit lamp with the embedded retina dynamometer, the eyes of a patient are aligned to the position of the observation window, the bandage is tied to the head of the patient, the height of the support rod is adjusted through the electric push rod (not shown), so that the lower jaw of the patient is properly supported, and fixation can be completed.

2. The invention provides a slit lamp with an embedded retina optometer, wherein when eye fixing is carried out, a special adhesive tape is pasted at the side face of one end of a mounting plate, when eyes are aligned with an observation window, eyelids are extruded and abutted with one side of the adhesive tape, so that pasting and fixing are completed, then when the eye position is adjusted, a driving plate and a fixing plate at a slope surface are pushed aside by inclined surface parts of an upper trapezoidal block and a lower trapezoidal block, so that an opening plate is opened, the connecting plate and the mounting plate are driven to pull the upper eyelid and the lower eyelid on the adhesive tape, the positions of the trapezoidal blocks are always positioned at the upper side and the lower side of an observation point, so that the opening plate at the observation point position is always in an opened state, the inside of eyes at the observation point position can be fully exposed, the observation is more accurate, the other eye is in a closed state, and a first spring is used for assisting closing and resetting of the opening plate.

3. After the examination is finished, the toggle blocks at two sides are toggled to two sides, so that the toggle blocks drive the pull rope to pass through the support frame and then pull the opening plate to the upper side and the lower side, meanwhile, the toggle blocks extrude the pushing blocks, one-way valves (not shown) for controlling one-way flow of eyedrops from the storage box to the transfer box to the output pipe are arranged in the input pipe and the hose, the eyedrops in the transfer box are extruded to the hose and flow to the output pipe to be discharged to the position of the adhesive tape, the adhesion auxiliary falling is reduced, after the toggle blocks are loosened, the opening plate is closed under the action of a first tension spring, meanwhile, under the action of a first spring, the pushing blocks push the toggle blocks to move reversely to reset, the eyedrops in the storage box are pumped into the transfer box through the input pipe to be temporarily stored, the amount of the eyedrops discharged each time is fixed, the inconvenience caused by too much or too little eyedrops is prevented, the integral automatic resetting of the using completion device is convenient for the examination of the next patient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of an adjustment mechanism according to the present invention;

FIG. 3 is an enlarged view of area A in FIG. 2;

FIG. 4 is a schematic view of the release mechanism of the present invention;

FIG. 5 is an enlarged view of area B of FIG. 4;

FIG. 6 is a schematic view of the opening and closing mechanism of the present invention;

FIG. 7 is an enlarged view of area C of FIG. 6;

FIG. 8 is a cross-sectional view of the release mechanism of the present invention;

FIG. 9 is an enlarged view of region D of FIG. 8;

FIG. 10 is a schematic view of an extrusion of the present invention;

fig. 11 is a partial structural schematic view of the opening and closing mechanism of the present invention.

In the figure: 1-a base; 2-a lamp holder; 3-a lamp body; 4-an embedded retinal optometer; 5-an adjusting mechanism; 6-a scaffold; 7-an opening and closing mechanism; 8-a mask box; 9-a guide block; 10-a plywood; 11-an adhesive tape; 12-a release mechanism; 13-a storage box; 14-an adjusting seat; 15-threaded rod; 16-a drive motor; 17-a supporting rod; 18-a device cartridge; 19-a viewing window; 20-a connecting plate; 21-mounting a plate; 22-opening and closing member; 23-mounting a rod; 24-a trapezoidal block; 25-fixing the plate; 26-a drive plate; 27-slope surface; 28-a first tension spring; 29-a control member; 30-pulling a rope; 31-a sliding groove; 32-a toggle block; 33-a support frame; 34-an extrusion; 35-a transfer box; 36-a pushing block; 37-a first spring; 38-input tube; 39-a hose; 40-an output pipe; 41-a bottom plate; 42-a top plate; 43-bandage.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: the utility model provides a slit lamp with embedded retina dynamometer, the on-line screen storage device comprises a base 1, adjustment mechanism 5, mechanism 7 and release mechanism 12 open and shut, fixedly connected with lamp stand 2 on the base 1, fixedly connected with lamp body 3 on the lamp stand 2, fixedly connected with embedded retina dynamometer 4 in the lamp body 3, adjustment mechanism 5 is including installing support 6 on base 1, adjustment mechanism 5 is used for adjusting and fixed patient's head's position, mechanism 7 opens and shuts is including installing the eye cover box 8 on support 6, fixedly connected with four group's guide block 9 on the eye cover box 8, all there is open plate 10 along vertical direction sliding connection in four group's guide block 9, all be equipped with viscidity sticky tape 11 on four group open plate 10, mechanism 7 opens and shuts and is used for the upper and lower eyelid of patient's both eyes respectively with viscidity sticky tape 11 adhesion, two group open plate 10 of linkage lamp body 3 place ahead position open when support 6 removes, make patient's this eyelid be in the open state, convenient direct observation to eyeball inside, release mechanism 12 is including installing storage box 13 that is used for storing eyedrop in 13 after the inspection, thereby the eyedrop of eye drops that the viscidity gets into the adhesion of the adhesive is reduced to patient.

Mechanism 7 that opens and shuts includes the device box 18 of fixed mounting in eye-shade box 8 both ends, two sets of device boxes 18 respectively with support 6's both sides fixed connection, observation window 19 has been seted up on the eye-shade box 8, fixedly connected with connecting plate 20 on the opening and shutting board 10, fixedly connected with mounting panel 21 on the connecting plate 20, viscidity sticky tape 11 pastes in the side of mounting panel 21 one end, mounting panel 21 runs through one side of eye-shade box 8, and with 8 sliding connection of eye-shade box, be equipped with the opening and shutting piece 22 that is used for controlling the state that opens and shuts of opening and shutting board 10 on the lamp stand 2.

The adjusting mechanism 5 comprises two groups of adjusting seats 14 fixedly installed at the bottom of the support 6 and a binding band 43 fixedly installed on the device boxes 18 on the two sides and used for fixing the head position of the patient, a threaded rod 15 is rotatably connected between the two groups of adjusting seats 14, the threaded rod 15 penetrates through the two sides of the lamp holder 2 and is in threaded connection with the lamp holder 2, the two groups of adjusting seats 14 are both in sliding connection with the base 1 along the horizontal direction, a driving motor 16 is fixedly connected onto one group of adjusting seats 14, the type of the driving motor 16 is preferably YYHS-40, the output end of the driving motor 16 is fixedly connected with one end of the threaded rod 15 in a coaxial mode, and a supporting rod 17 used for supporting the jaw of the patient is arranged on the support 6.

Opening and shutting piece 22 includes two sets of installation poles 23 of fixed mounting on lamp stand 2, equal fixedly connected with trapezoidal piece 24 on two sets of installation poles 23, fixedly connected with fixed plate 25 on the opening and shutting board 10, the side fixedly connected with drive plate 26 of fixed plate 25, domatic 27 with 24 inclined plane department sliding connection of trapezoidal piece is seted up to the side of drive plate 26, fixedly connected with and eye-shade box 8 side fixed connection's first extension spring 28 on the fixed plate 25, be equipped with the control 29 that is used for controlling opening and shutting board 10 position on the opening and shutting board 10, control 29 includes bottom plate 41 and the roof 42 of fixed mounting in opening and shutting board 10 both ends, bottom plate 41 and roof 42 are located the both sides position of guide block 9 respectively.

The releasing mechanism 12 comprises four groups of pull ropes 30, one ends of the four groups of pull ropes 30 are fixedly connected with the side surfaces of the four groups of split plates 10 respectively, sliding grooves 31 are formed in the side surfaces of two groups of device boxes 18, shifting blocks 32 are connected in the sliding grooves 31 in a sliding mode, supporting frames 33 are fixedly connected to the upper side and the lower side of the two groups of device boxes 18 respectively, one end of the support 6 penetrates through the middle of each pull rope 30 and is connected with the supporting frames 33 in a sliding mode, the other end of each pull rope 30 is fixedly connected with the shifting blocks 32, and extruding pieces 34 used for enabling eyedrops in the storage boxes 13 to be extruded to the positions of the adhesive tapes 11 in a linkage mode when the shifting blocks 32 are shifted are arranged in the device boxes 18.

Extrusion 34 includes the transfer box 35 of fixed mounting in sliding tray 31, transfer box 35 sliding connection has the promotion piece 36 with stirring piece 32 side fixed connection in the transfer box 35, the side fixedly connected with that promotes piece 36 and transfer box 35 inner wall fixed connection's first spring 37, the side fixedly connected with input tube 38 of transfer box 35, the both ends of input tube 38 are linked together with storage box 13 and transfer box 35 respectively, the side intercommunication of transfer box 35 is connected with two sets of hoses 39, the one end of two sets of hoses 39 respectively with connecting plate 20 fixed connection, the output tube 40 that the multiunit is linked together with hose 39 one end has all been seted up on mounting panel 21 and the connecting plate 20.

Aim at the position of observation window 19 with patient's eye, tie up bandage 43 overhead at the patient, highly making through electric putter (not shown) regulation die-pin 17 hold up patient's chin just, can accomplish fixedly, this moment also be better fixed mode to some active children patients, traditional autonomic control has been avoided, it is fixed to patient's head through bandage 43 is supplementary, make the observation process more smooth, it can inspect some cataract patients to start lamp body 3 and embedded retina eyesight meter 4, drive threaded rod 15 through starting driving motor 16 simultaneously and rotate, can make patient's head translation, thereby aim at the position of lamp body 3 observation point with the eyes that will observe, and easy operation is convenient.

When carrying out the eye fixed, paste special viscidity sticky tape 11 in the one end side position of mounting panel 21 earlier, when the eye aligns with observation window 19, carry out the extrusion conflict with the eyelid and one side of viscidity sticky tape 11, thereby accomplish to paste fixedly, later when adjusting the eye position, open plate 10 that moves about can be pushed away the drive plate 26 and the fixed plate 25 of domatic 27 department to both sides by the inclined plane part of upper and lower two sets of trapezoidal pieces 24, thereby make open plate 10 open, drive connecting plate 20 and mounting panel 21 and pull open the upper and lower eyelid on the viscidity sticky tape 11, because the position of trapezoidal piece 24 is in the upper and lower both sides of observation point all the time, thereby open plate 10 of having guaranteed the observation point position is in the open mode all the time, can assist the inside abundant exposure of the eyes with the observation point position, make the observation more accurate, another eye is in the closed condition this moment, first spring 37 is used for assisting closing of open plate 10 and reseing.

After the examination is finished, the poking blocks 32 on the two sides are poked to the two sides, so that the poking blocks 32 can drive the pull rope 30 to pass through the support frame 33 and then pull the opening plate 10 upwards and downwards, meanwhile, the poking blocks 32 squeeze the pushing blocks 36, one-way valves (not shown) for controlling one-way flow of eyedrops from the storage box 13 to the transfer box 35 to the output pipe 40 are arranged in the input pipe 38 and the hose 39, so that the eyedrops in the transfer box 35 are squeezed to the hose 39 and discharged to the position of the adhesive tape 11 towards the output pipe 40, the adhesive auxiliary falling is reduced, after the poking blocks 32 are loosened, under the action of the first tension spring 28, the opening plate 10 is closed, meanwhile, under the action of the first spring 37, the pushing blocks 36 push the poking blocks 32 to move reversely to reset, the eyedrops in the storage box 13 are drawn into the transfer box 35 through the input pipe 38 to be stored temporarily, so that the amount of the eyedrops discharged each time is fixed, the inconvenience caused by too much or too little adhesive is prevented, the whole adhesive tape is automatically reset, the patient can be used for the examination, and the patient can be used for the patient without being stuck on the patient, and the patient can be stuck on the patient before the patient (similar to be examined) and the patient can be examined, and the patient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A slit lamp provided with an embedded retinal optometer, comprising:

the retina eyesight test lamp comprises a base (1), wherein a lamp holder (2) is fixedly connected to the base (1), a lamp body (3) is fixedly connected to the lamp holder (2), and an embedded retina eyesight meter (4) is fixedly connected to the interior of the lamp body (3);

further comprising:

the adjusting mechanism (5) comprises a bracket (6) arranged on the base (1), and the adjusting mechanism (5) is used for adjusting and fixing the position of the head of the patient;

the opening and closing mechanism (7) comprises an eye cover box (8) arranged on the support (6), four groups of guide blocks (9) are fixedly connected to the eye cover box (8), opening and closing plates (10) are connected to the four groups of guide blocks (9) in a sliding mode along the vertical direction, adhesive tapes (11) are arranged on the four groups of opening and closing plates (10), the opening and closing mechanism (7) is used for enabling upper and lower eyelids of two eyes of a patient to be respectively adhered to the adhesive tapes (11), and the two groups of opening and closing plates (10) in the front of the lamp body (3) are linked to be opened when the support (6) moves, so that the eyelids of the patient are in an opened state, and the interior of eyeballs can be observed conveniently and directly;

a release mechanism (12), the release mechanism (12) includes a storage box (13) installed on the eyeshade box (8) for storing eyedrops, the release mechanism (12) is used for squeezing the eyedrops in the storage box (13) to the position of the adhesive tape (11) after the examination is finished, so as to reduce the adhesiveness and release the adhesion to the eyelids of the patient, the adjusting mechanism (5) includes two groups of adjusting seats (14) fixedly installed at the bottom of the bracket (6), a threaded rod (15) is rotatably connected between the two groups of adjusting seats (14), the threaded rod (15) penetrates through the two sides of the lamp holder (2) and is in threaded connection with the lamp holder (2), the two groups of adjusting seats (14) are both in sliding connection with the base (1) along the horizontal direction, a driving motor (16) is fixedly connected on one group of adjusting seats (14), the output end of the driving motor (16) is coaxially and fixedly connected with one end of the threaded rod (15), a support rod (17) for supporting the lower jaw of the patient is arranged on the bracket (6), the open-close mechanism (7) includes two groups of fixed boxes (8) installed on the eyeshade window devices (18) and two eye box (18) and are respectively arranged on the bracket (6), the improved eye mask structure is characterized in that a connecting plate (20) is fixedly connected to the opening plate (10), a mounting plate (21) is fixedly connected to the connecting plate (20), an adhesive tape (11) is pasted to the side face of one end of the mounting plate (21), the mounting plate (21) penetrates through one side of the eye mask box (8) and is in sliding connection with the eye mask box (8), an opening and closing piece (22) used for controlling the opening and closing state of the opening and closing plate (10) is arranged on the lamp holder (2), the opening and closing piece (22) comprises two groups of mounting rods (23) fixedly mounted on the lamp holder (2), trapezoidal blocks (24) are fixedly connected to the two groups of mounting rods (23), a fixing plate (25) is fixedly connected to the opening plate (10), a driving plate (26) is fixedly connected to the side face of the fixing plate (25), a slope face (27) in sliding connection with the inclined face of the trapezoidal blocks (24) is arranged on the side face of the driving plate (26), a first tension spring (28) fixedly connected to the side face of the fixing plate (25) fixedly connected to the eye mask box (8), four groups of opening and closing mechanisms (30) are respectively connected to the opening and closing mechanism (30), sliding grooves (31) have been all seted up to the side of two sets of device box (18), sliding groove (31) sliding connection has group piece (32), and is two sets of the equal fixedly connected with support frame (33) in the upper and lower both sides of device box (18), stay cord (30) middle part is run through the one end of support (6), and with support frame (33) sliding connection, the other end of stay cord (30) with group piece (32) fixed connection, be equipped with in device box (18) and be used for stirring the linkage will eye drops in storage box (13) are crowded when dialling piece (32) extrusion (34) of viscidity sticky tape (11) position.

2. A slit lamp provided with an embedded retinal vision gauge as claimed in claim 1, wherein: the extruding piece (34) comprises a transfer box (35) fixedly installed in a sliding groove (31), wherein the transfer box (35) is internally and slidably connected with a pushing block (36) which is fixedly connected with the side face of a poking block (32), the side face of the pushing block (36) is fixedly connected with a first spring (37) which is fixedly connected with the inner wall of the transfer box (35), the side face of the transfer box (35) is fixedly connected with an input pipe (38), the two ends of the input pipe (38) are respectively communicated with the storage box (13) and the transfer box (35), the side face of the transfer box (35) is communicated with two sets of hoses (39), the two sets of hoses (39) are fixedly connected with a connecting plate (20), and the mounting plate (21) and the connecting plate (20) are respectively provided with a plurality of sets of output pipes (40) which are communicated with one end of each hose (39).

3. A slit lamp provided with an embedded retinal vision gauge as claimed in claim 2, wherein: the control piece (29) comprises a bottom plate (41) and a top plate (42) which are fixedly installed at two ends of the opening plate (10), and the bottom plate (41) and the top plate (42) are respectively located at two side positions of the guide block (9).

4. A slit lamp provided with an embedded retinal vision gauge as claimed in claim 1, wherein: the adjusting mechanism (5) also comprises a binding band (43) fixedly arranged on the device box (18) at two sides and used for fixing the head position of the patient.