CN111613121A - Improved ametropia and binocular vision function demonstration device - Google Patents

Abstract

The invention relates to an improved ametropia and binocular vision function demonstration device, and belongs to the field of ocular optics. The eyeball shell is inserted with a long bolt as an axis of the eye, the back part is sleeved with four thin films which run towards the blood vessels and represent the retina, and the bolt is screwed to be long to represent the high myopia sclera and the thin film deformation. Four points on the two eyeball optical benches connected by the silk ropes are rectangular, the thin ropes are connected with the light rings, and the two trapezoidal ropes adjusted by twisting the knob eyes drive the optical benches and the light rings to synchronously and three-link. The stand passes through the flat section crystal layer and the brown and black layers of the iris and pupil and then is inserted into the linear guide rail layer, and the stand is moved for three-linkage. The cornea of the eyeball is provided with a small hole, and the rope passes through the small hole and the 1: 1 mask to simulate the pupil of the eye to make visible sight. Different lenses represent various corneas before the shaping, and the increase and decrease of the camber of the two areas of the convex surface of the hyperopic astigmatic lens represent the shape of the cornea after the shaping. The function of the moulding mirror is shown to be disassembled into a single pressing piece, a positioning ring and a tension ring. The LED lamp is used as a sighting mark, and the camera transmits an image to the screen. And fluent strips are arranged below the optical bench and the slide rail. Used for eye health education.

Description

Improved ametropia and binocular vision function demonstration device

Technical Field

The invention belongs to the field of ocular optics, and relates to a device for demonstrating ametropia, binocular vision functions and partial organic eye diseases by combining three forms of simulation, eyeball and plane.

Background

"China's students myopia presents the tendency of high-speed and low-age, seriously affects the physical and mental health of children", "high myopia becomes the leading cause of blindness", "protect preschool hyperopia reserve", "myopia can be caused by wrong pen holding", "reduce the strength and length of short-distance load", "incorporate the prevention and control knowledge into the teaching", "4.5 hundred million people do not correct vision", "23% preschool children, 64% -90% computer users have asthenopia symptom", "overuse eyes for the whole citizen", "8000 ten thousand eyeground diseases are found to treat early blindness and can avoid" "most of eye diseases are functional" (Internet)

At present, the reason why no demonstration myopia affects the physical and mental health of children is the three-linkage imbalance of near reflection, namely the technology or the device for regulating and gathering the abnormity.

At present, low-degree myopia is not demonstrated, and the technology or the device which seriously influences the physical and mental health of children is particularly adopted.

At present, no technology or device for connecting two optical benches to demonstrate near-reflection triple linkage in contrast with imaging exists.

At present, no plane is used for demonstrating the technology or the device for the near reflection three-linkage and comparing the AC/A.

At present, there is no technology or device for demonstrating physiological hyperopia gradually to high myopia and causing high risk by using a tangible eye axis for contrast imaging.

There is currently no technique or device for demonstrating the accommodation and load aggregation of far, medium, near and more closely by contrast imaging eyeballs and simulated eyes.

At present, no teaching audience mobile phone self-shooting technology or device for copying videos in three forms of near point integration, eyeball, plane and simulation exists.

At present, no technique or device for demonstrating that children recognize that the visual chart is good and not near sight, and do not indicate that the visual axis is not long and the far sight is enough is available through contrast imaging.

At present, a technology or a device for demonstrating that the sight line is blocked and the load is overlarge due to pen holding errors is not used by combining simulated eyes and eyeballs.

At present, no technology or device for showing the function of the shaping mirror after the shaping mirror is disassembled is available.

At present, no technology or device for correcting the same myopic single-focus lens and peripheral defocusing lens and correcting and demonstrating peripheral defocusing by using a shaping lens exists.

There is currently no technique or device to pass the image to the screen.

Currently, there are no techniques or devices for viewers to compensate for "good daily vision" in contrast to screen imaging operations.

There is currently no technique or device that demonstrates organic lesions, although imaging is clear.

At present, no technique or device for enabling audiences participating in eye health education to operate stably and quickly is provided.

Currently, no single device viewer can address most eye diseases: organic touch, functional operation versus a missing function technique or device.

The invention is a teaching aid for demonstrating eye health education which can be participated by audiences.

Reference to the literature

Binocular vision (2 nd edition), the aurora, the national public health press 2011. 6.60.62.109.178.182.183. prior art close to the present invention: a near-far vision demonstration device for ametropia (ZL200920251945.5) and a binocular vision function demonstration device (ZL 201210116624.0).

The deficiencies of both techniques:

the axis of the eye is not tangible; no artificial eye is available; no visible line of sight; the cornea has no small hole and no big hole; no two layers of films; no hose ring is arranged; the two guide rails (optical bench) are not connected, and the horizontal section sheet is not layered, so that the near reflection triple linkage cannot be demonstrated; the pupil (simulated iris) cannot be fine-tuned; no fluency strip exists; the two visual marks can not be simultaneously arranged without a sliding rail through the nail; the eyeball is divided into two parts, namely a front shell and a rear shell; the inability to pass the image to the screen; no lens showing the shape and imaging change before and after the cornea is shaped, and no detached orthokeratology lens; the optotypes are not LED lamps.

The invention overcomes the defects of the two technologies in the prior art.

Claims

1. The utility model provides a modified ametropia and binocular vision function's presentation device, includes demonstration board, subplate, drift bolt, eyeball procapsid, eyeball back shell, guide rail, plano section, interior rectus muscle, outer rectus muscle, image line, thinks the line of seeing, simulation iris, cornea, convex spherical mirror, back lid, its characterized in that: the method comprises the steps of changing an eye axis into a shape, changing the sight of a simulated eye and an eyeball into a shape, enabling a cornea to be provided with a small hole and a large hole, representing a retina and a choroid by using a film, connecting two optical benches, layering a plain section, making an iris by using a manual adjustable aperture, arranging a hose ring in front of the adjustable aperture, arranging fluency strips below the optical benches and the slide rails, penetrating two through nails through the slide rails, enabling the eyeball to be divided into four parts, transmitting an image to a screen, representing the shape and the image before and after the shaping of the cornea by using lenses, disassembling a corneal shaping mirror into three parts, and using an LED lamp as a sighting mark.

Disclosure of Invention

Summary of the invention and the technical problems, solutions and advantages to be solved

The eye axis is changed to be tangible.

The anterior hemisphere, the anterior half of the 3 mm thick eyeball. The outer transverse diameter is 16 cm, and the front and the rear are 10 cm long. Is a big head of a long oval shape.

The elongated shell of the eyeball, the small head of the long oval, represents the elongated sclera of the highly myopic eye axis. The outer transverse diameter is 16 cm, and the front and the rear are 15 cm long. The rear part is provided with two holes with the diameter of 20 mm, namely a macular hole and a disc hole, and a macular cover and a disc cover with patterns and models can be inserted into the holes.

And bolts with the diameter of 8 mm and the length of 25 cm are inserted into the two horizontal bearings in the front half-eyeball shell.

The bolt is provided with a nut, and the rear end of the bolt is provided with a knob. The length from the front surface of the front half eyeball shell to the nut is variable, and the length is the axis of the eye.

And the tower-shaped soft spring penetrates through the bolt. The large ring is fixed on the inner edge of the front half eyeball shell, and the small ring end is connected with the nut.

Turning the knob causes the nut to move backward, indicating that the eye axis is lengthened. The soft spring is pulled backwards, the distance among the circles is increased, the retina film sleeved on the soft spring becomes thin, the change of the soft tube on the film shows pathological changes, and the lengthened shell is sleeved to show the sclera expansion.

The visual lines of the simulated eyes and the eyeballs are changed into shapes.

The visible sight of the simulated eye is two telescopic ropes, one end of each rope is pulled out of two anti-theft telescopic boxes behind the groove plate, and the other end of each rope is a support behind the mask in a ratio of 1: 1.

Two telescopic ropes are pulled out from the two telescopic boxes on the back of the groove plate, pass through the stop points from the back of the groove plate, then pass through the cornea and the pupil of the two half eye shells of the mask, and are connected with the half eye shell bracket. Assuming that the hemicapsids are the full eye, the center of rotation of the stent is at the posterior pole of the full eye.

The hemiocular shell, 24 mm in transverse diameter, has a part of internal and external rectus muscles.

A groove plate, a rigid plastic sheet with the height of 19 cm and the width of 16 cm. The middle part is provided with a groove with the transverse length of 10 cm and the width of 5 mm, and the left part, the middle part and the right part of the groove are widened to 12 mm to be used as stop points.

The two telescopic ropes are pulled to swing and change directions, and the half eye shells on the supports are driven to synchronously rotate, so that the two ropes represent a visual line with a physical simulated eye. The two ropes, the tangible lines of sight, may converge at the same dwell point or diverge at two dwell points.

The groove plate is arranged at the end of the sliding rail of the demonstration plate, the simulated eyes are arranged side by side on the surface, the visible sight line is parallel to the sight line of the eyeballs, and the angle is integrated, so that the operation of the simulated eyes can be the same as the operation of the eyeballs in the process of demonstrating far, middle, near and over-near loads if the simulated eyes have devices and can also be operated.

The demonstration board (45 cm x 55 cm) has a hollow with a height of 16 cm and a width of 24 cm.

The grooved board shows the paper book when it is placed in the hollow. The mask is arranged above the groove plate and the paper book, the visible sight of the simulated eyes of the mask is connected with the paper book, and the mask represents the head position when writing with the visible sight.

The physical line of sight of the eyeball is the thick string.

Two box-type automatic guy ropes for fishing are pulled out to form two telescopic thick ropes which respectively penetrate through two corneal pores with pores. The cornea with a small hole is arranged in the eyeball groove support, the thick rope passes through the pupil and then passes through the macular hole, and is fixed on the two through nails.

The two telescopic thick ropes are pulled to swing and change directions, the visual axis guide rail is driven to change directions, namely, the eyeballs on the visual axis guide rail are driven to change directions and rotate, and the two thick ropes represent the sight lines of the eyeballs.

The cornea is small and large.

Average diameter 80 mm, meniscus, representing cornea

Cornea with small holes: a +1.50DS convex lens with the center thickness of 4 mm, a small hole is arranged in the middle, and a thick rope passes through the small hole. The sighting target can be aimed and seen from the macular hole at the rear end of the ball through the convex lens with the small hole on the groove support at the front end of the ball.

Cornea with macroporosity: 8 mm thick, plain (0.00 DS). The central portion of the cornea cut to a central diameter of 40 mm was the corneal macroporosity. The concave trial lens with the trial lens ring for the high myopia with the long axis is clear, the concave trial lens is placed in the large hole of the cornea after the middle part of the cornea is taken down, the imaging is also clear, and the delensing of the laser surgery for the high myopia and the myopia is to change the shape of the cornea.

The retina and choroid are represented by thin membranes.

The two layers of silica gel films are part of a circular arc sphere, and the arc length is long or short. The short ball-placing back end is inside. The length of the spring is 1 cm longer than half of the eyeball, which represents the equator part and is sleeved on the bolt soft spring. The posterior portion has two 20 mm holes, which are the locations of the macula and the optic disc, and represent that the retina is connected with the macula and the optic disc as a whole.

The long and short retina films have four-directional hoses and rubber ropes, which represent blood vessels and optic nerves of four regions on the temporal side of the nose.

Red and black magnetic pieces, attached to the two films at the rear of the ball, indicate bleeding and visual field loss.

And (3) ring breaking: annular plastic sheet, diameter 12 cm, central hole diameter 30 mm. 15 mm along the hole is a translucent film, a faint ring of a broken ring, and the rest is black. The eyeball is adjusted to have hemorrhage and visual field defect serious but the macula is imaged clearly, the imaging light path passes through the central hole in the broken ring and the semitransparent film, and the imaging is still clear and is only slightly blurred. The black light blocking path has no imaging.

Connecting the two optical benches. (optical bench, i.e. toothed visual axis guide)

The silk rope surrounds the root parts of the two eyeball front lens frames of the two visual axis guide rails and four points of the two extension penetrating nails to form a rectangle.

The knob front lens frame is screwed forward and adjusted, the length of the upper bottom of the filament rope rectangular deformation trapezoid is shortened, namely, the distance between two ends of the visual axis guide rail is shortened and is close to the two eyeballs on the visual axis guide rail. Representing two linkages that regulate synchronization with the collection.

The knob of the front lens frame is provided with a string which is connected with the handle of the aperture.

When the knob is screwed forward, the string is wound, the handle is pulled to shrink the light ring, and the pupil shrinkage, the adjustment and the collection form synchronous three-linkage.

And splitting the flat sheet into layers.

And (3) upper layer: the horizontal section of the eyeball with the transverse diameter of 16 cm is penetrated on the nail at the back pole part, and the rotation center of the direction changing is arranged on the nail.

The front part is provided with a curved groove with the chord length of 80 mm and the width of 2 mm. The curved groove exposes the section of the iris.

The meniscus tablet is two, the convex surface facing forward represents the anterior surface of the lens, movable, and the convex surface facing backward represents the posterior surface of the lens, stationary.

Middle layer: the rectangular plastic sheet has the width of 80 mm and the height of 86 mm, the front part is provided with an equilateral triangle of 80 mm, the color is black, and the rest is brown. The middle part is provided with a straight groove with the length of 38 mm and the width of 3 mm. Can move back and forth.

The lower layer: the linear guide rail with the sliding block is not fixed and is arranged on the lower layer in a floating mode, and the rotation center of the linear guide rail, which changes the direction, is arranged on the movable small stand column.

The small upright post penetrates through the movable small meniscus piece, passes through the straight groove, penetrates through the rectangular plastic piece and is inserted into the sliding block of the lower linear guide rail.

The two linear guide rails are placed inwards, the small upright post moves forwards and is adjusted to drive the middle-layer rectangular plastic sheet to move forwards, so that the black color of the exposed section of the curved groove is reduced, and the brown color is increased. The sliding block inserted by the small upright post moves inwards along the linear guide rail and simultaneously drives the flat-section piece to rotate and assemble, and the three-linkage is synchronous with the adjustment and the pupil constriction.

And manually adjusting the aperture to form the iris.

An adjustable aperture with a handle, the outer diameter of which is 80 mm, and the aperture size represents the size of the pupil. The slide rail is arranged in a short slide way with the inner diameter of 80 mm and the length of 15 mm and can move back and forth. The front moving part is tightly attached to the small hole at the rear side of the hose ring, which indicates that the small hole is blocked.

A hose ring is arranged in front of the adjustable aperture.

The 8 mm diameter hose was looped around an 80 mm outer diameter hose before the iris and after the cornea. The rear side of the hose loop had a small hole with a diameter of 1 mm, indicating the inflow of aqueous humor. The aperture moves in a short slide to and from the distance of the hose ring, indicating the depth of the anterior chamber of the eye. And fluent strips are arranged below the optical bench and the slide rail.

The operation of the participatory audience can be stable and quick.

The two through nails penetrate the sliding rail.

Two three-section sliding rails are folded at two ends to represent an integrated meter angle. The groove plates can be arranged, and two visual targets can be arranged side by side and far away from each other and near to each other. The eyeball is divided into four sections.

The eyeball shell with the thickness of 3 mm has the outer transverse diameter of 16 cm, and the front and the back one third of the eyeball are the front end and the back end of the eyeball.

The middle third is subdivided into two sections, two intermediate rings. That is, one eyeball is divided into four sections.

The front end of the ball and the rear end of the ball are one third long, which is convenient for the operation of audiences. Only one intermediate ring is nested to represent the short eye axis.

A small magnet is embedded in the shell at the rear end of the ball to generate a magnetic field. The magnet can be placed to attract and press the short film. Can adsorb red and black magnetic sheets.

The rear end of the ball is provided with a macular hole and a visual disc hole, and the diameters of the macular hole and the visual disc hole are both 20 mm.

The macula and optic disk covers, both 20 mm in diameter, have the macula and optic disk patterns and models. The macular hole and the optic disc hole are inserted.

Peripheral vision is represented by imaging on an annular paper screen ring. The outer diameter of the paper screen is 9 cm, the ring width is 2 cm, and the diameter of the central hole is 5 cm. The front 10 mm of the macula lutea cover is placed, namely, for the sighting mark at the same distance object distance, the peripheral vision image distance displayed by the paper screen ring is 10 mm shorter than the image distance of the central vision macula lutea cover.

The front end of the ball is provided with a groove support which is fixed at the front end of the ball and is provided with two grooves.

The two-eye trial frame for optometry only uses one trial lens ring, can be inserted with the trial lens and can move in front of the front end of the ball. The image is passed to a screen.

The front of the rear end of the ball is provided with a camera which transmits the image to a meeting place or a screen of a mobile phone.

The shape and imaging before and after the corneal reshaping are represented by the lens.

Finishing the sheet:

the central 35 mm area of the convex surface of the hyperopic lens is respectively made into base curve +9.00DS and +7.00DS, and the base curve in the area from 35 mm to 80 mm is +6.00DS, namely, different base curves are made in two areas to represent the magnitude and the magnitude of the cornea E value; base curve +7.00DS combined astigmatism +2.00DC, done within 35 mm and throughout 80 mm, represents a partially and edge-to-edge astigmatic cornea.

The convex surface of the base arc area of the hyperopic astigmatic lens corneal shaping lens is reduced, the convex surfaces of the reverse arc and negative tension area are increased, and the peripheral positioning arc area is unchanged, so that the cornea after shaping is made. The anterior lens is increased or decreased to make the cornea before the shaping.

Cutting into pieces:

the complete spherical lens with the same base curve and the astigmatism piece (along the steep meridian) are divided and cut into half pieces. The half-piece astigmatism-free sphere lens and the half-piece astigmatism are spliced to represent the difference of the astigmatism asymmetric cornea and the cornea K value; the edge-to-edge astigmatism of the half-piece is combined with the local astigmatism of the half-piece, and the asymmetric bowtie astigmatism cornea is represented.

The orthokeratology mirror is disassembled into three parts.

The orthokeratology mirror is disassembled into a single pressing sheet in a basal arc area, a positioning ring in a positioning arc area and a tension ring in a reverse arc area.

The three parts are placed on different whole and cut pieces, showing the function of the shaping mirror in the covered area and the distribution of the lacrimal fluid layer.

And using an LED lamp as a sighting mark.

The combined graph with the lens and the convex LED lamp beads is used as a sighting mark, the single LED lamp bulb with the lampshade is used as the sighting mark, the detail screen can be displayed, and the bright environment can be demonstrated.

Drawings

Note: the first digit represents the figure number and the last two digits represent the part number.

Example (c): 302, which means that the component is 302 in fig. 3.

FIG. 1 is a general view of the present invention (the parts on the left visual axis guide rail 201 are the same as those on the right visual axis guide rail 708, the right through nail 215 is also provided with a flat section 216, which are not shown; the front half eyeball 211 with a bolt is not shown), wherein: 101 is the front end of the ball, 102 is the back end of the ball, 103 is the aperture, 104 is the cornea, 105 is the hose circle, 106 is the back convex lens frame, 108 is the front convex spherical lens, 805 is the test lens circle, 117 is the front convex lens frame, 206 is the middle ring, 114 is the lamp pearl visual target, 107 is the bulb visual target, 609 is the disc hole, 608 is the macula hole, 214 is the slide rail, 110 is the slide rail fluency strip, 111 is the visual axis guide fluency strip, 201 is the visual axis guide (left), 708 is the right visual axis guide, 116 is the demonstration board, 216 is the flat section, 215 is the through-pin, 301 is the groove board, 302 is the mask, 303 is the rope, 304 is the bellow, 401 is the hollow (dotted line)

Fig. 2 a structural view of a bolt eye shaft, wherein: 201 is a visual axis guide rail (left), 202 is a shell bracket, 111 is a visual axis guide rail fluency strip, 203 is a bolt button, 204 is a long two-layer film (semi-circle dotted line), 206 is a middle ring (tangent plane), 207 is a nut, 208 is a soft spring ring, 210 is a long rear shell, 211 is a front half eyeball, 212 is a bearing, 213 is a bolt, 214 is a slide rail, 110 is a slide rail fluency strip, 215 is a through nail, 608 is a macular hole (of the rear shell 210), 116 is a demonstration board, 216 is a flat section, 609 is a disc hole (of the rear shell 210)

Fig. 3 is a block diagram of a simulated eye, wherein: 301 is a slotted plate, 302 is a mask, 303 is a string, 304 is a python, 305 is a middle dwell point, 306 is a right dwell point, 307 is a hemiforamen, 310 is a stent, 312 is a telescopic box (dotted line), 404 is an outer rectus muscle (part), 405 is an inner rectus muscle (part)

Fig. 4 is a hollow structure diagram of the groove plate, wherein: 301 is a grooved plate (with the overlapped dotted line portions at the edges against the hollowed bottom), 302 is a mask (in plan view), 401 is hollowed, 402 is a thumb, 403 is a pen, 404 is an external rectus muscle (portion), 405 is an internal rectus muscle (portion), 406 is a (demonstration) plate part, 305 is a middle stop point, 303 is a string, 307 is a half-shell

FIG. 5 is a block diagram of a three layer flat section sheet wherein: 216 is a flat section, 501 is a movable meniscus, 502 is a fixed meniscus, 503 is a small upright post not moved forward, 504 is a middle rectangle (not shown as a dotted line), 505 is a straight groove, 506 is a curved groove, 507 is black (not shown as a dotted line), 508 is brown (not shown as a dotted line), 509 is a linear guide (slider not shown), 215 is a through pin, 510 is a small upright post moved forward and backward (dotted line), 511 is a flat section after the position is changed (dotted line)

Fig. 6 ball rear end structure view, wherein: 102 is the posterior end of the globe, 601 is the two short layers of film, 602 is the magnet, 603 is the macula lutea cover, 604 is the optic disc cover, 605 is the four regions of the retina, 606 is the small magnet, 608 is the macula lutea hole (of the posterior end of the globe 102), 609 is the optic disc hole (of the posterior end of the globe 102), 102 is the posterior end of the globe, 611 is the broken ring (tangent plane), 612 is the broken ring fuzzy ring (tangent plane), 613 is the central hole (tangent plane) of the broken ring, 614 is the paper screen (of the tangent plane), 615 is the paper screen (of the plane), 202 is the housing bracket, 214 is the slide rail, 708 is the right visual axis guide rail, 215 is the through-pin, 216 is the flat section, 116 is the demonstration board, 616 is the camera head, 215 is the

FIG. 7 is a block diagram (from above; broken lines indicate changes) of a connection of two-axis guides, in which: 718 is an elongated dowel, 101 is the ball front, 102 is the ball back, 103 (not top view, plane) aperture, 111 is the visual axis rail fluency strip, 703 is a string, 705 is the aperture handle, 706 is (rectangular and trapezoidal) wire, 708 is the right visual axis rail, 201 is the visual axis rail (left), 701 is the left front lens frame knob, 709 is the right front lens frame knob

Fig. 8 shows a view of the front end of the ball (both cut surfaces), in which: 801 is a large-hole cornea, 802 is a middle cornea, 803 is a groove support, 804 is a small hole of a hose ring, 105 is a hose ring, 805 is a test lens ring, 806 is a short slideway, 807 is a small-hole cornea, 808 is a small hole, 809 is a thick eyeball rope (fixed on the front part of the through nail 215 without passing through a macula hole 608), 202 is a shell support, 103 is a diaphragm, 101 is a front end of a ball

Fig. 9 a keratoplasty mirror (both sections), wherein: 901 is the single preform, 902 is the tension ring, 903 is the positioning ring, 904 is before shaping, 905 is after shaping (dotted line)

Detailed Description

The details of the embodiments, structures and functions of the invention are set forth in the accompanying drawings and the description of the preferred embodiments. Example A bolt eye shaft organic lesions

Bolt-on indicates eye axis length:

the right tray 803 holds a large hole cornea 801 with a corneal middle 802. Tuned for clear imaging of the far sighting mark 107, two intermediate rings 206 are sleeved. The short two-layer film 601 is placed inside the rear end 102 of the ball and the magnet 602 is attracted and pressed. A macular hole 608 and a disc hole 609 are inserted into the macular cover 603 and the disc cover 604.

The anterior hemi-eyeball 211 is positioned on the housing support 202 of the left visual axis guide rail (left) 201. The soft spring 208 is wrapped around the long two layers of film 204 (dashed lines) with the four regions 605 of the retina exposed.

And the +1.50DS test lenses are inserted into the right test lens ring 805, and imaging is clear. The middle ring, short eye axis, is removed. The bolt knob 203 of the front half eyeball on the left visual axis guide rail is screwed, so that the nut 207 moves forwards and is as short as the right.

Right insertion-5.00 DS clear; the left eye nut moves backwards and has the same length as the right eye nut. The distance between the rings of the soft spring is increased due to backward movement, the film becomes thin, and the four areas are changed. The right insertion is clear at-7.00 DS, the left eye is adjusted to be the same length and then changes more, and the sleeve is lengthened to the rear portion 210.

Express organic lesions and touch:

the retinal outgrowth represents the peripheral fissure. The-7.00 DS trial lens was replaced in the large hole removed from the mid-cornea 802 to indicate laser "delensing". The diaphragm 103 is advanced within the short slide 806, against the hose ring 105 (cross-section), indicating the aqueous blocking hose ring aperture 804. The black and red magnetic pieces indicate visual field defect and bleeding. The optical path of the damaged ring 611 passes through the central hole 613 and the fuzzy ring 612 to show that the vision is still good and slightly fuzzy. Black bar imaging indicates blindness. The retina, choroid and macular caps, optic disc cap, four zones of flexible tubing and medial patterns, models were removed: indicating the associated disease.

Example two eyes and simulated eyes combine to demonstrate accommodation, collective (vergence) loading

The far-looking 6 m, 5 m and 4 m bulb sighting marks 107 (reflected by the mercury mirror) gradually move to 3 m and 2 m which look like television, then to 1 m and 0.75 m which look like computer, and then to 0.3 m which look like mobile phone and paper book after changing the bulb sighting marks 114. The front lens knobs 701 and 709 are screwed before each distance, the cord 809 is adjusted to align the sighting mark in the eyeball, and the light adjusting ring 103 enables imaging to be clear, namely, the three linkage of adjusting, gathering and pupil shrinking are synchronous.

Then, when each distance is clear, the sighting mark moves forwards and backwards by 3 cm to maintain clear imaging.

From far to near and maintaining clarity of anterior-posterior translation, twisting the knob and adjusting the cord varies the amplitude of the inward-outward turning (vergence) of the eyeball: the time spent in watching the television is small, the time spent in watching the television is large, the time spent in a computer is obviously large, and the time spent in a mobile phone and a paper book is over doubled.

The slot plate 301 is positioned at the end of the demonstration board slide 214 and the mask 302 is positioned between the two through-pins and in parallel with the eyeball. The visible sight line and the string 303 of the simulated eye are parallel to the visible sight line and the thick string of the eyeball, the angle of the integrated meter is the same, and the change amplitude is the same as that of the eyeball. The simulated eye of 24 mm can also operate if a knob device is also arranged, and the linked far-looking, middle-looking, near-looking and far-looking front-back screwing amplitude is the same as that of the eyeball.

The front lens moves forwards to support the eyeball, the inward rotation is to squeeze and drag the eyeball, the load and the load of the pushing and the dragging are very large, the axis of the pupil with soft eyeball is always clear, the whole nerve dysfunction which is mainly adjusted and integrated by the adult is caused, and the reason that the clear near vision is mostly the whole body symptom of the whole nerve dysfunction is not known.

Example three audience participation against changes in Screen imaging details

Eyeball pair 4-meter ball target 114:

eye regulation-1.00 DS. The audience is clear against the distance in the screen-down aperture 103; then, the eyeball was adjusted to-4.50 DS. The medium-distance small-aperture is unclear and no longer tries to shrink. The low degree of narrowing is more than compensated by the involuntary effort, which is more likely to cause visual fatigue belonging to the category of physical and mental medicine than the medium and high degree, and affects physical and mental health.

The screen with the eyeball-missing +0.50DS small aperture is adjusted to be clear, and the daily eyesight is good. The trial lens circle 805 has a clear +0.50DS lens inserted and the aperture can be of normal size. The front lens frame knob 709 is twisted to recover before the lens is removed: additional compensation of +0.50DS is often made daily.

The screen with 0.50DC small aperture for adjusting the under-astigmatism of the eyeball is clear, and the vision is good daily. The aperture is adjusted to be large, the details of the visual target screen are two ellipses, the visual target (Stevens light cone minimum circle of confusion) is arranged in the middle, the aperture is adjusted to be small, and the regular good eyesight is restored by the compensation of squinting.

The normal short axis +1.00DS and the insufficiently short axis +0.25DS are adjusted for both children's eyes. The naked eye vision with small aperture is 1.0, and the screens are clear. The aperture is adjusted to be larger again, the rear end 102 of the +0.25DS trial inserted lens +0.75DS twisting ball moves forward as short as the normal short of +1.00DS, namely, two children are not near-sighted, far-sighted and have good vision, and the +0.25DS eye axis consumes more reserve +0.75 DS.

Example four pen-holding errors cause head dislocation, and the method is integrated into classroom

Bellows 304 supports mask 302 (as viewed from above) above demonstration board portion 406. The frid 301 border is supported the fretwork 401 bottom, shows the paper, can remove in the fretwork, and rope 303 is connected with the paper. The mask (head position) is correct and the two shaped lines of sight of the simulated eye hemi-shell 307 are concentrated at the mid-dwell point 305. The pen grip 403 simulates writing, with the pen tip landing point also at the middle stop point.

The thumb 402 holding the pen is 'big-bag, horizontal', and the right rope 303 is blocked by the thumb joint bending convex part, which means that the right eye of the simulated eye cannot see the pen point for writing. The two lines of sight are placed at the left dwell point, indicating that writing of a row begins and the right cord is blocked more.

The right rope is prevented from being blocked by the thumb, the head position is required to be forward and downward, the head position is closer to the groove plate, the groove plate inclines left and moves left, and the groove plate moves right and inclines left.

Merging into a classroom: the left eye should be closed (the right eye can be) visible (the pen point), otherwise, the three-one is impossible. Example five eyeball near reflex three-linkage, merging into classroom

Boresight guides 201 and 708 are parallel.

The macular cover 603 of the rear knob end 102 is in the same vertical line as the extension through-pin 218. The fixed length of wire 706 is rectangular in the same plane around the extended two spikes and the root of the left and right anterior convex lens holders 117.

The bead sighting mark 114 is at the end of the two sliding rails 214 and gradually moves closer.

The front lens frame knobs 701 and 709 are twisted forward and the two ball lenses 108 on the two front lens frame 117 are moved forward and the wire becomes trapezoidal 706. Both images of the alignment optotype are at the macular cover 603, and both linkage and synchronization of the alignment and adjustment are clear.

The front lens knobs are connected with the iris handle 705 through a string 703. The front two knob strings are simultaneously wound, the handle is pulled to make the aperture 103 (pupil) smaller, and the synchronous three-linkage is formed with the two-linkage of the adjusting set. The clear imaging of the original lamp bead sighting mark is changed into the clear imaging with small aperture, large depth of field and detail.

The two visual axis guide rail ends of the hand dial are separated and integrated to be scattered, namely, the upper edge of the trapezoid is lengthened, the two waists are shortened, the two knobs are driven to rotate, the convex spherical mirror moves backwards, and the convex spherical mirror is restored to be the parallel rectangle of the visual axis guide rail. The relationship representing accommodation and aggregation is a square to trapezoid interconversion, and the telescopic scatter aggregation can cause accommodation relaxation.

The eyeball is adjusted to-1.00 DS, which indicates that the eyes are short, but the eyes are not worn when seeing near, and the eyes are worn (progressive multi-focus or double-focus glasses) with shallow-1.00 DS. The front twist knob is normally adjusted but is fuzzy without adjustment. Both eyes were imaged neither on the macular lid, nor on the collection. The rectangle can not be changed into a trapezoid, which means that the near reflection double linkage is not formed.

When the knob is not screwed forward, an eyeball is dialed to align the sighting mark, the image is formed on the macular cover at one eye and is clear, but only the extension line of one side is aligned with the sighting mark, and the rectangle is not changed into the trapezoid to form a parallelogram and double vision. Both eyes clearly pay the sensation of being compensated by "binocular fusion".

The string was removed indicating that the pupil movement was not part of the near reflex triple linkage. Although clear, the knob is turned to be fuzzy, and two visual axis guide rail end sets can be obtained, and only two linkage of adjustment and set are realized. Then manually adjust the small aperture to blur the image into clear. Still forward screwing means that over-adjustment means accommodation spasm, and manual iris adjustment means "pupil in highly constricted state".

Myopia affects physical and mental health, and is caused by three linkage imbalances of near reflex caused by myopia, namely, adjustment, aggregation and pupil abnormality reduce the dominance benefit and synchronism of a nervous system, and the myopia is represented as visual fatigue belonging to the category of physical and mental medicine and not only low distance vision.

Merging into a classroom: the near-reflection triple linkage is a result of human evolution.

Example six plane near reflection three linkage, AC/A

The upper plano-section 216, the movable meniscus 501 and the fixed meniscus 502 correspond to the anterior eyeball convex lens 108 and the anterior lens surface, respectively, and the posterior convex lens and the posterior lens surface on the posterior convex lens holder 106. The spikes 215 correspond to the center of rotation of the macular cover 603 of the eyeball image and the simulated eye.

The plastic piece is pushed forwards in a straight groove 505, passes through the small upright post 503 of the movable crescent plate, moves forwards, is adjusted (A), and changes the front position and the rear position to drive the middle rectangular 504 plastic piece to move forwards. The curved groove 506 is exposed from the section of the iris, and when the curved groove at the upper layer is moved forward, the triangular black 507 part exposed from the middle layer is gradually reduced, and the brown 508 part is gradually increased, namely when the curved groove is moved forward, the section is seen, the brown color is gradually increased, the iris diaphragm is gradually widened, and the black color is gradually reduced, and the pupil is gradually reduced.

The direction of the two linear guide rails is adjusted inwards. The small upright post moves forwards and is adjusted, the exposed black is gradually reduced, the pupil is gradually reduced, and meanwhile, the sliding block inserted into the small upright post moves along the inward direction of the linear guide rail. That is, the position of the small column changes in the front-rear direction and also in the inner or outer, left or right direction. The two linear guide rails are both inward, and the flat split piece is driven to rotate inwards and gather (AC) by taking the through pin as a rotation center to form three-linkage.

The linear guide 509, which is floated on the lower layer, changes the rotation center of the direction and is on the small moving upright. The included angle between the inward direction of the two linear guide rails and the original direction of the two flat-section pieces is small, the position change of the small upright post in the inner or outer direction, the left or right direction is small when the small upright post moves forwards and is adjusted, the direction of the driven and changed flat-section pieces is small, the AC/A is small, and the included angle between the two flat-section pieces and the original direction of the two flat-section pieces is large, and the AC/A is large.

The embodiment of the invention simulates eye, eyeball and plane replication by self-testing near points and experiences diplopia

Self-timer video of viewers with insufficient set (3% -25% of the population): staring at the front camera of the mobile phone and gradually approaching. When two eyes turn inward uniformly and approach again, the position of the right eye which does not turn inward is the point of approach of convergence, and then the right eye turns outward and escapes outwards.

Copying a simulated eye: the slot plate is 90 cm from the mask and the two ropes come together at a mid-dwell point 305. The groove plate is from 90 cm to 30 cm, and the rope drives the two eyes to rotate uniformly. Close to 30 cm, the right rope 303 is controlled by hand to make the direction not rotate inwards any more and not drive the right eye. And (3) when the distance is up to 20 cm, putting the right rope to a right stopping point 306 to drive the external rotation: the eyes escape.

Eyeball replication: the bulb sighting mark 107 is aligned with 90 cm to 30 cm, the two thick ropes 809 drive the eyeballs to rotate uniformly inwards, the distance is close to 30 cm, the right thick rope is pulled to be not rotated inwards, and the right eye is not rotated inwards. Nearly 20 cm, pulling outward: the eyes escape.

Experience double vision: the viewer aims at the sighting target from the right macular hole through the pinhole cornea 807, controls the right visual axis guide rail 708 to rotate outwards to simulate the escape of the right eye, and the pinhole cornea of the convex lens drives the sighting target to move reversely to form an artifact which forms 'one is seen as two' and double vision with the left eye.

Plane replication: two linear guides 509 are inwardly disposed. The two small posts 503 are moved forward and the two flat-split pieces 216 are rotated inward. The right linear guide rail is placed in the same direction with the right horizontal splitting piece, and the right horizontal splitting piece does not rotate inwards any more when the small upright post moves forwards. The right linear guide rail is changed to be placed outwards and moved forwards again, and the flat section piece is turned outwards: the eyes escape.

EXAMPLE eight-part fabrication, fabrication and application of front and rear lenses for molding, out-of-focus peripheral

Three parts of the cornea shaping mirror are disassembled, the thickness of the three parts is 1 mm, and the three parts are transparent PVC plastic soft boards:

single-tabletting 901: diameter 28 mm, 0.00DS plane. Is the portion of the shaping mirror that acts on the base arc region.

Retaining ring 903 and tension ring 902: the diameters of the bottom surfaces of the two conical shells are respectively 80 mm and 54 mm, the generatrices are 44 mm and 40 mm, and the diameters of the two conical shells are cut at the peripheral parts and are 13 mm. Is the portion of the shaped mirror that acts on the positioning arc and the inversion arc regions.

Hyperopic astigmatic lenses before addition or subtraction, before shaping 904: the thickness of the center was 7 mm, the base curve +7.00DS, the concavity-3.00 DS, the astigmatism +0.50DC (i.e., +7.00DS and +7.50DS for both meridians), and the combined astigmatism +0.50DC for +4.00DS (+7.00DS-3.00 DS).

Addition and subtraction of hyperopic astigmatic lenses, after molding 905: the central diameter was 28 mm, the convexity was reduced, and made flat without astigmatism, at-3.00 DS (0.00DS-3.00 DS). 28 mm to 54 mm, increasing convexity, making +10.00DS, which is non-astigmatic, of +7.00DS (+10.00DS-3.00 DS). 54 mm to 80 mm. That is, the lens has three degrees after shaping.

The lens holder 803 is a cornea before molding. The eye elongation was-2.50 DS combined with-0.50 DC astigmatism.

Two sighting marks are arranged at the same distance, and the aperture 103 is adjusted to be 45 mm.

The-2.50 DS combined-0.50 DC lens was also placed in the socket, representing an eyeball corrected for the myopia combined astigmatism with a monofocal contact lens. A visual target is imaged clearly at the macular cover 603. The other sighting mark forms a fuzzy image on the paper screen 614, the rear end 102 of the ball is screwed backwards, the eye axis is lengthened and becomes clear, and the sighting mark is lengthened and blurred again.

The longer the eye axis is, the more the need for presbyopia, the less long blur image is hyperopic defocus.

A convex test lens is overlaid on the single-focus contact lens to simulate the correction of the eyeball by the multi-focus contact lens. The image distance of the peripheral vision of the paper screen ring of the visual target at the same distance is 10 mm shorter than that of the central vision of the macular cover, the degree formed after the compass overlay is clearly imaged on the paper screen, and the degree is the vision of the periphery of the retina of the eyeball. And the degree of the convex test lens is increased, and the paper screen image becomes fuzzy. The back end of the ball is screwed forwards, the eye axis becomes shorter, and the blurring becomes clearer.

The short of the axis of the eye is the demand of the myopia, and the short of the blurred image is the myopic defocusing.

The position and the degree of the convex folded trial lenses are different, the imaging position of the paper screen and the peripheral defocusing degree are different, the effect is different after the size of the aperture is changed, and different designs of the peripheral defocusing lens and the cornea shaping lens are represented.

The cornea was corrected and shaped without lens correction when the model of the socket holder was changed to the model before the model was formed. A-3.00 DS with a central diameter of 28 mm is a correction for a-2.50 DS combined astigmatism-0.50 DC eyeball (-2.50DS-0.50DC), and the aligned sighting mark is clearly imaged at the macular lid. And the +7.00DS of 28 mm to 54 mm is used for forming a near vision defocusing blurred image on a paper screen for another visual target.

Claims (1)

1. The utility model provides a modified ametropia and binocular vision function's presentation device, includes demonstration board, subplate, drift bolt, eyeball procapsid, eyeball back shell, guide rail, plano section, interior rectus muscle, outer rectus muscle, image line, thinks the line of seeing, simulation iris, cornea, convex spherical mirror, back lid, its characterized in that: the method comprises the steps of changing an eye axis into a shape, changing the sight of a simulated eye and an eyeball into a shape, enabling a cornea to be provided with a small hole and a large hole, representing a retina and a choroid by using a film, connecting two optical benches, layering a plain section, making an iris by using a manual adjustable aperture, arranging a hose ring in front of the adjustable aperture, arranging fluency strips below the optical benches and the slide rails, penetrating two through nails through the slide rails, enabling the eyeball to be divided into four parts, transmitting an image to a screen, representing the shape and the image before and after the shaping of the cornea by using lenses, disassembling a corneal shaping mirror into three parts, and using an LED lamp as a sighting mark.

Images