KR20130116872A - Electroactive ophthalmic glasses and method of making the same - Google Patents

Abstract

A pair of ophthalmic glasses configured to delay the progression or substantially prevent myopia of the myopia includes a prescribed lens having a far viewing lens portion, a near vision lens portion, and a variable transparency element composed of a near view mode and a far viewing mode. It includes. The distance viewing lens portion prescribed in the near viewing mode is not substantially opaque or transparent, and the near viewing lens portion is substantially clear or transparent. In the far viewing mode, both the near viewing lens portion and the near viewing lens portion are substantially clear or transparent. The variable transparency device state (whether it is clear or opaque) is driven by an electronic device embedded in the frame. Embedded software analyzes the distance record to the object in front of the glasses provided by the proximity detector embedded in the frame to determine whether it is in far or near view mode.

Description

ELECTROACTIVE OPTHALMIC GLASSES AND METHOD OF MAKING THE SAME

The present invention relates to ophthalmic glasses, and in particular, but not limited to eyeglasses for preventing myopia or delaying myopia progression in general young people.

Myopia (nearsightedness) is not the retina at the back of the eye, as the light entering the eye is too long, or the cornea is too steep, as shown in FIG. It's in focus. As a result, nearsighted people see near objects sharply but far objects appear blurred.

The incidence of myopia in the Orient is significantly higher than in the Western world. Myopia is the most common eye problem among children in Asian progressive societies such as Singapore, Hong Kong, Taiwan and Japan. As the education system becomes more burdensome, this condition is increasing in China. The incidence and severity of myopia has increased significantly over the past two decades worldwide. Statistical and medical evidence shows that myopia progresses significantly from 6 to 15 years.

In Asia, myopia progression is highest in elementary school children in the world. At ages 7-8, myopia progresses more than 1D (100 degrees) per year. Myopia affects 25% of 7 years old, 66% of 12 years old, and 80% of 18 years old. When such a child becomes an adult, his myopia may be -8D or higher. Children need stronger glasses once a year and even every six months.

Myopia has become a public health concern in Asia. High levels of myopia are not only aesthetic problems, but also health problems that significantly increase the risk of irreversible blindness in older generations. Various eye symptoms such as Macular, Glaucoma, Retinal Detachment, and retinal problems following cataract surgery are at much higher incidence.

A common and traditional way to correct a child's myopia is to prescribe a pair of eyeglasses with concave lenses that shift the image focus back toward the retina and bring clear vision. Glasses do not prevent the development and progression of myopia. Glasses are only optical corrections for eye visual dysfunction that allow children to see clearly despite their visual dysfunction.

Why is myopia developing and how can I stop myopia progression? Scientifically, while the cause of myopia development is not fully determined, research shows that myopia progression is caused by a combination of genetic and environmental factors. Myopia is more common when one parent is myopia, and much more common in myopic parents. But environmental factors are equally important. Important environmental factors are long reading and near field work. The study shows that increasing the time spent sitting and reading in front of a computer screen with close focus correlates strongly with myopia progression.

Myopia children are usually prescribed glasses to correct myopia (far vision defects). When we focus on near objects, like reading, light enters the eye and focuses over the retina. In order to return the optical focus to the retina, the lens of the eye must be deformed into a shape that adds focusing power to the eye. This process is called "accommodation". The study shows a high correlation between long compliance and myopia progression.

There are two main theories explaining the correlation between compliance and myopia progression.

a. Excessive response to near-field work places an eye load on the development process. This load could be reduced by the increased growth of the eye causing myopia. Some studies measuring eye length have shown that the eye stretches during the acclimation process.

b. Inadequate adaptation (“accommodative lag”) is evident in many children (more in some children than others) when children are doing near work activities. The delay in acclimatization causes hyperopic retinal defocus, and excessive primitive defocus can cause a visual regulation mechanism of eye growth, which can stretch the eye.

Recognizing the strong correlation between acclimatization and myopia progression, the researchers conducted a study that suggested several ways to minimize the amount of compliance in children's daily lives and reduce myopia progression by these means. One way to reduce myopia progression by eliminating compliance is to use bi-focal glasses or progressive progressive lenses as shown in FIG. 2. The idea behind this idea is to read using the lower segments of the glasses. The lower segment is designed to focus on the near object (from + 2D to + 3D from the far correction), while the upper segment is the refractive error correction required to bring the far image into focus on the retina. To provide. In this case no acclimation of the eyes is required during reading or near field activity. No acclimatization delay is produced, so no primitive defocus and eye stretch are expected.

Bifocal or multifocal lenses are effective in providing refractive correction for both long range and near vision for adults suffering from a range of compliance. In this case, people are forced to use the lower segment for reading since reading through the upper region in the absence of compliance capability will result in blurred image results.

However, because the child has a strong compliance ability, there is no guarantee that the child will actually use the lower segment of the near-field lens. While using a standard bifocal or multifocal lens, there is no means to force the child to shift his gaze to use the lower segment of the lens while refraining from acclimatization and reading.

There are several studies investigating the use of progressive multifocal lenses. In the US, a multicenter, randomized, comparative, multicenter lens, the Correction of Myopia Progression Trial (COMET) reports the small but statistically significant effect of progressive multifocal lenses in slowing myopia progression. . Further randomized comparative experiments in Japan using progressive multifocal lenses in children show a similar positive effect of progressive multifocal lenses in delaying myopia progression.

However, due to the delay in myopia progression, the reported effects in such studies are virtually insignificant. Only a decrease of about 25% appears. The main reason for the limited effect may be that a child using a progressive multifocal lens is not willing to swap the dedicated area (lower area) on the lens for reading. Since their compliance ability will be strong, children can see the same well by using the upper (far) segment of the lens and performing the compliance. Applying acclimation to reading using the upper segment of the lens all the time is much more comfortable and intuitive than tilting your head and looking down.

At first the child may try to use the reading area of the lens in cooperation, but as time passes, unlike the adult in presbyopia, no blur is induced during near-field work, the child actually needs to use the upper part of the lens. It is hard to expect to learn that, and to force children to look down on themselves like this, which is counter intuitive and uncomfortable. Therefore, the child can stop using the reading area and continue to acclimatize simply by using the upper-distant area.

Although bifocal or multifocal glasses may have the potential to delay myopia progression by significantly reducing the need for compliance, the way these glasses are actually used by children limits their efficacy and consequently has no effect on myopia progression. Few.

Other bifocal or multifocal clinical studies in children with myopia have shown similar limitations and inconsistent effects for this reason.

In general terms, the present invention proposes a pair of spectacles prescribed for treating (rather than correcting) myopia. The present invention proposes glasses that use a pair of bifocal or multifocal lenses with near additions of + 2D to + 3D, which use the upper segment of the lens for long range viewing, It consists of a mechanism that directs and directs the child to use the lower segment of the lens (rather than to conform using the upper segment of the lens).

This may have the advantage that myopia treatment in children is more effective.

In a specific representation of the invention, a pair of spectacles according to claim 1 and / or a method according to claims 31, 32 and 34 is provided. In a further specific representation of the invention, a method is provided for forming a beveled edge on a lens according to claim 35. Embodiments can be implemented according to any of claims 2 to 30, 33 and 36.

The pair of glasses according to the present invention has the advantage of being more effective in treating myopia in children. It is also possible to delay the progression of myopia or substantially prevent myopia.

Referring to the following figures, one or more exemplary embodiments of the present invention will be described.
1 is a ray diagram in the myopia eye.
2 is a front view of a prior art bifocal lens.
3A is a front view of an ophthalmic eyeglass according to an exemplary embodiment in a telescopic view configuration.
3B is a front view of an ophthalmic eyeglass according to an exemplary embodiment in a close-up view configuration.
4 is a perspective view of a further exemplary embodiment.
5A is a schematic diagram of the LC shutter of FIG. 4.
5B is an exploded view of the LC shutter and lens of FIG. 4.
6 is a schematic diagram of the proximity sensor of FIG. 4.
7 is a wiring diagram of the glasses of FIG. 4.
FIG. 8 is a block diagram of the electronic components of FIG. 4.
9 is a flowchart of a method for manufacturing ophthalmic glasses according to an exemplary embodiment.
10A is a side view before installation of a prior art lens and frame.
10B is a side view after installation of the prior art lens and frame.
11 is a side view of a two part lens.
12 is a close up of the lens edge.
13 is a close-up of the grooves in the frame.
14 is a side view of the front lens to be inserted.
15 is a side view of the rear lens to be inserted.
16 is a sectional view of the frame showing the wiring conduit.
17 is a schematic diagram of a frame illustrating a nose pad assembly.
18 and 19 are diagrams of the nose pad assembly prototype of FIG. 17.
20 is a schematic diagram of cord bridge insertion.
21 is a diagram of a video projection system.
22A is a schematic diagram of a general lens symmetric triangular edge.
FIG. 22B is a schematic diagram of a “split” lens attached to a blank resulting in the symmetrical triangular edge of FIG. 22A.

3 illustrates a pair of ophthalmic glasses 300 using progressive progressive or bi-focal lenses to treat or delay the progression of myopia in a child in accordance with an exemplary embodiment. The lens utilizes a mechanism that allows the child to use the lower segment 302 of the lens while reading. This will ensure that no long-term adaptation (or minimal compliance) is applied to seeing near objects, and so expected will significantly reduce or completely prevent the progression of myopia in children.

Ophthalmic optical lenses (bifocal or progressive multifocal lenses) include a special Transparency Controlled Liquid Crystal (TCLC) 304. The film 304 can change the completely transparent state to a "milky", frosted, opaque state.

Transparency of the TCLC 304 is electronically controlled. While the child is reading, the upper segment 306 of the lens automatically turns opaque. This allows the child to use only the lower segments of the lens with the optical power prescribed for reading, so that there is no need to apply compliance. When viewing a distant object, the TCLC 304 becomes completely transparent and the eye naturally uses the far refractive segment of the upper segment 306. The opaque portion may be just a portion of the upper segment 306 and may be only partially opaque or other partial induction to view through the lower segment 302.

As shown in FIG. 4, the electronic device is embedded in the spectacle frame. The electronic device includes a software-programmed Micro Controller 400, TCLC film voltage drivers, and proximity sensors 402. Circuit power is provided by a low profile multiple polymer lithium rechargeable batteries 404. Battery 404 is charged by direct connection using a wall adapter with industry standard micro USB connector 406. Alternatively, battery 404 may be charged by wireless power transfer using inductive charging.

Smart operation ( Smart activation )

When you wear the glasses, the glasses work automatically. This is done via a touch or body sensory sensor 408 located on the nose pad 410 of the glasses. If the glasses are not worn for an extended period of time, there may be a slip function for ultra low power consumption to operate. The touch or body sensory sensor 408 can measure the capacitance, which varies significantly depending on whether the contact touches the human skin. It may comprise one or a plurality of contact pads.

frame( Frame )

The spectacle frame may be a nylon based material such as Grilamid TR90 or similar material. The nasal pad 410 may be a conductive soft polymer or silicone that is biocompatible with skin contact. Alternatively, nasal pad 410 may be any material as long as it is biocompatible with skin contact. The temporal edge 412 at the ear may be a soft polymer or soft silicone that is biocompatible and adaptable to long skin contact. Silicone at the nose bridge and eyeglasses / ear pieces can prevent the glasses from slipping off the child's nose because of the remaining weight of the glasses. The arms are not foldable and can be fixed.

TCLC

TCLC 304 may be 0.1-0.3 mm thick and may be driven by a 20-36V square wave. There are two active cells 502 and 504 that operate independently for each eye. Optionally, there may instead be three active cells per eye that divides the lens into three different areas. As a further option, there may be a single TCLC cell covering the upper segment 306 of the lens. Each cell is an LC film located between two optical lenses 506, 508, and as shown in FIGS. 5A and 5B, a cell activation is performed in which a conductive tab 510 is inserted into a slot of a frame. Has a conductive line for it. The tab is thus a Quick Assembly Mechanism (QAM) that enables the "field" assembly of the LC shutter (by spectroscopy) and the electrical connection to the electronic substrate. Disassembly for lens replacement can also be easily performed by an optician. TCLC 304 may be inserted flat between optical lenses 506 and 508.

TCLC 304 can be opaque without power, clear when there is energy, or vice versa. The opacity stage can be chosen to be only partially opaque, like the safety feature.

Microcontroller ( Micro controller )

As shown in FIG. 8, a microcontroller 400 and supporting circuitry are located on the main PCB board 800 with a proximity sensor 402 welded to the circuitry. The battery 404 is connected to the small PCB 808. TCLC pads 510 are provided on the main PCB board 800 and the small PCB board 808. Interconnect wiring 1600 and nose pad 410 are provided through the frame from the left rim to the right rim as shown in FIG. 7.

The microcontroller 400 is a low power, small foot print, low cost CPU with flash memory and wireless communication options. Voltage boost circuitry provides the output voltage for driving the LC 20-36V square wave (amplitude).

Operating software ( Management software )

The remote computer may be connected to the CPU 400 wirelessly or via the micro USB port 406 and may include operating software. This may enable reporting of data such as "wear time", "reading time" and additional information for clinical evaluation. Parameters such as smart activation can be configured.

Reading status detection Reading state detection )

The detector 402 recognizes when the child is reading or doing other near field work and automatically changes the upper lens (far field) to opaque. While looking at the distance again, the detector 402 recognizes the new pose and sharpens the upper segment of the lens.

As shown in FIG. 6, the detector 402 may be an ultrasonic piezo sensor 600, which is a transmitter and a receiver driven by a square wave (amplitude), or may be an infrared detector. There may be a transmitter on one side and a receiver on the other side, and a centrally coupled Tx / Rx converter is also possible. The sensor 600 should be compact and, for example, no larger than 9 mm in diameter and 5 mm in length in a fully enclosed metal case.

An example sensor is a 9 mm diameter and 5 mm long open case sensor produced by MurataTM, Japan. The sensor operates at 5-10V with a frequency of 40Khz and has a resolution of 1cm.

Detector 402 executes a decision algorithm that can reduce false state situations. The switching to the reading state is not performed immediately but is delayed slightly. This brief glance will be filtered out, and only a stable reading situation (long acclimatization is performed) will activate the top shutter. It is what makes it practical for children, and the goal is to eliminate "false activation." In addition, this allows the child to acclimatize normally.

battery( Battery )

The battery 404 may be a rechargeable polymer lithium battery of 3.7V-80 to 110mAh.

Micro USB  connector( Micro USB connector )

The battery can be charged via a charging module in the CPU. The charging module is activated when an external AC-DC switched power supply 5V is connected to the USB micro charger port 406. The port is IP55 waterproof and dustproof. Alternatively, solar chargers may be provided externally or as part of a frame or inductive charging mechanism.

Lens production lens production )

The front lens 506 may be a fixed prescription. It can be bifocal or multifocal with near addition of + 2.0D-+ 2.5D. Front lens 506 may be fixed without reference to a user's personal prescription. Back lens 508 may be individualized in a prescription for children to correct myopia and astigmatism in individual children.

Good things can cost money. Bifocal or multifocal lenses can be more expensive. Costs can be reduced by mass collective orders of the same lens. Since the rear lens 508 is a single focus lens, it may be cheaper to personalize it to the prescription.

In the two part lens configuration shown in FIG. 11, each of the front lens 506 and / or rear lens 508 is a " split " lens having a substantially flat side, with the lens edges It may not be processed using common lens making machines. This is because edge bevelling is performed on ordinary lenses with symmetric triangular edges using a conventional lens making machine. 22A shows a generic lens with symmetrical triangular edges. Such lenses before chamfering also have edge profiles of general standard dimensions.

A “separated” lens, which may be the front lens 506 or the rear lens 508, has a substantially flat side and therefore will not have a symmetric edge profile. Each "separated" lens can also have edges that are not standard dimensions (because they are "split" of a normal lens).

Defects in edge symmetry and defects in standard edge dimensions can be compensated for by attaching a blank to the substantially flat side of each "separated" lens. This is shown in FIG. 22B, where a “separated” lens 2202 is attached to blank 2204 using adhesive 2206. Afterwards, the lens and blank combination is processed as if it were one complete lens. The "separated" lens can be attached to the blank in a removable manner using a thin double sided tape with adhesive 2206. The blank used may be round or square.

Frame creation ( Frame production )

As shown in FIG. 9, the frame (except for the optical lens and the LC film) is assembled at the manufacturing facility. Plastic parts are manufactured using plastic injection molding. Thereafter, electronic circuits, sensors, and wirings are installed. All internal components electronic boards, batteries, and other components are not replaceable.

Interconnect wiring 1600 and the nose pad 410 between the left and right rims of FIG. 7 may be provided through a frame 1602 as shown in FIG. 16. Frame 1602 generally provides a groove 1606 for mounting the lens 1604. To hide the wiring 1600, an extension is made into the groove 1606 that forms the wiring conduit 1608. The interconnect wiring 1600 is permanently installed in the conduit 1608 during fabrication by coating it with a resin and an adhesive. Alternatively, it can be made of a flexible circuit. In addition, such conduits may be installed in a standard frame to enable retrofitting.

Assembly method ( Assembly method )

The frame is manufactured as mentioned above, and the lenses 506 and 508 (according to myopia treatment regimen) and the LC film 304 are assembled by a licensed central laboratory or a qualified optician.

Standard optical lenses have eyeglasses fixed by various means. As shown in FIG. 10, the most popular is by having the spectacle frame have a triangular groove (standard dimensions of about 2.2 mm base, 0.6 mm height). The lens shape is hedged by a hedging machine that cuts the lens to fit the frame shape and precisely fits the plastic or glass lens to the frame while leaving a protrusion around the circumference of the lens.

The lens is inserted into the frame by loosening the frame by heating (in the case of a plastic frame) or by loosening the frame by opening a small screw that tightens the two parts of the frame together.

Alternatively, as shown in FIGS. 12-15, front lens 506 has a tapered edge 1300 that is smaller than rear lens 508 and allows for insertion from behind. While the TCLC 304 is inserted, the front lens 506 once inserted is temporarily fixed in place. Then, the angle of the grooves 1302 in the frame allows the larger rear lens 508 to slide into place from behind to lock all three configurations in place. This means that the detached lens can be easily installed by the optician and fixed in place without any additional effort.

As shown in FIG. 11, a lens according to an exemplary embodiment is separated into two lenses. Light magnification is the sum of the two lenses. For example, if the front lens 506 is +4 and the rear lens 508 is -2.5, then the total light magnification is 1.5 dioptre. TCLC film 304 is very thin (about 0.2 mm) and therefore does not affect image quality.

Kodari  rescue( nose bridge construction )

The QAM shown in FIG. 8 may be replaced by an alternative cord bridge structure 1800 as shown in FIGS. 18 and 19. In this case, the LC film 304 is still positioned between the two optical lenses 506, 508. However, conductive tab 510 is instead inserted into slot 1802 near nose pad 410. The centrally located single-sided or double-sided PCB 1804 has conductive pads on its top surface to form a contact 1814. PCB 1804 may be 0.5 mm thick. The conductive tab 510 is positioned such that the contact 1812 of the conductive tab 510 contacts the contact 1814 of the PCB pad. Thereafter, a cover 1806 is attached via screws 1808 over the conductive tabs 510 and the PCB 1804 to secure the conductive tabs 510 and the PCB 1804 in place.

In this way the lens and liquid crystal film can be installed, electrically connected and locked in place by an optometrist in the store without a professional electronic technician.

The nose pad 410 shown in FIG. 20 may be a single unit or a separate unit and may include a metal tab 2000 inserted into the cord bridge structure 1800 and secured in place by the cover 1806. . This allows for installation of different size nose pads to suit individual wearers. The metal tab 2000 may be flat or circular and may be 0.2-0.4 mm thick to allow insertion / replacement of the nasal pad 410. Body sensation contacts 408 may be coated on the nasal pad 410 and may be connected to the metal tab 2000. The metal tab 2000 may then be electrically connected to the PCB 1804 through pressure contact using zebra strips 1810 in the nose bridge cover 1806.

In addition, interconnect wiring 1600 may be electrically connected to PCB 1804 and / or nose pad 410. As mentioned above, the wiring for the LC film 304 should be separated from the body sensory sensor 408. For example, the LC film 304 wiring can follow the top groove, and the body sensory sensor 408 can follow the bottom groove.

Video projection ( Video projection )

TCLC 304 may alternatively be obtained by projecting video onto the upper segment 306 of the lens. The video projection can simply blur the upper segment 306 of the lens. An example of such video projection is shown in FIG. 21. TCLC 304 may be replaced with a light-guide optical element (LOE) 2100. The LOE 2100 may be an ultra thin lens design that incorporates a small see-through element in front of the eye. A small projector 2102 may be embedded in the spectacles 2104 to project the blur to the side of the LOE 2100. As the image moves to the center 2106 of the LOE 2100, it is reflected to the eye through the see-through element. In this case, the image may simply be white noise in the upper segment, which will effectively block the upper segment 306 to force the use of the lower segment 302.

As a further alternative, TCLC 304 may be a thin film coating attached to the front or back of a single bifocal lens.

Although exemplary embodiments of the invention have been described in detail, various modifications are possible within the scope of the invention as claimed by those skilled in the art. For example, a child in the art may be a young person 18 years of age or younger.

00: ophthalmic glasses 302: lower segment of the lens
304: transparency control liquid crystal film (TCLC) 306: upper segment of the lens
400: software programmed CPU 402: proximity sensor
404: lithium rechargeable battery 406: micro USB connector
408: touch or body sensory sensor 410: nose pad
412: glasses leg edge
502/504: active cell 506/508: optical lens
510: transparency control liquid crystal film (TCLC) tab 600: sensor
800: main PCB board 808: small PCB
1600: interconnect wiring 1602: frame
1604: lens 1606: groove
1608: conduit
1800: Kodari rescue 1802: Slot near the nose pad
1804: PCB 1806: Cover
1808: screw 1810: zebra strip
1812/1814: Contacts
2000: metal tab 2100: optical element (LOE)
2102: projector 2104: glasses legs
2106: center of LOE 2202: "orphaned" lens
2204 blank 2206 adhesive

Claims (36)

A pair of ophthalmic glasses configured to delay the progression of myopia or substantially prevent myopia,
Prescribed distance viewing lens portion,
A near viewing lens portion prescribed to delay the progression of myopia or substantially prevent myopia, and
At least a portion of the near viewing lens portion prescribed is substantially blocked, obscured, opaque or transparent, and at least a portion of the near viewing lens portion is configured in a user's near viewing mode that is substantially clear or transparent; A pair of ophthalmic glasses, wherein the at least a portion of the viewing lens portion comprises a variable transparency system configured for a user's long viewing mode that is substantially clear or transparent. The method according to claim 1,
The user is a pair of ophthalmic eyeglasses young people 18 years or younger. The method according to claim 1 or 2,
The variable transparency system includes a pair of ophthalmic glasses including a variable transparency element inserted between the inner lens and the outer lens. The method according to claim 3,
The variable transparency element is a pair of ophthalmic glasses comprising one or more liquid crystal cells (liquid crystal cells). The method according to claim 1 or 2,
Wherein the variable transparency system comprises a coating on at least one lens surface configured to change opacity in response to a signal from a controller. The method according to claim 1 or 2,
The variable transparency system substantially blocks, obscures, makes opaque or non-transparent to the prescribed distance viewing lens portion prescribed during the near viewing mode, and also substantially prevents the viewing lens portion prescribed during the near viewing mode. A pair of ophthalmic glasses comprising a video projector configured to make the image clear or transparent. The method according to claim 3 or 4,
Wherein the inner lens is a lens prescribed for a particular user and the outer lens is a fixed optical power lens. The method according to any one of claims 3, 4 and 7,
Wherein the inner lens is a negative dioptre lens and the outer lens is a positive dioptre lens. The method according to claim 8,
The outer lens has a pair of bevelled edges substantially coterminous with the edge of the variable transparency element, and the inner lens has a pair of beveled edges substantially spaced apart from the edge of the variable transparency element. Ophthalmic glasses. The method according to claim 9,
And a frame having a notch for receiving the inclined edge of the inner lens and the inclined edge of the outer lens, the notch having a smaller circumference on the outer side compared to the larger circumference on the inner side, the inner side A larger circumference of the image is a pair of ophthalmic glasses formed so that the outer lens, the variable transparency element and the inner lens can be installed from the inside. The method according to any one of claims 1 to 10,
A pair of ophthalmic glasses, further comprising a frame having a soft nose pad and a soft ear member. The method according to any one of claims 1 to 11,
And a controller for determining whether the user is in the near view or in the far view and operating the variable transparency element in accordance with the near view mode or the far view mode. The method of claim 12,
The controller is configured to activate the far view mode substantially immediately after determining that the user is a far view, and to activate the near view mode after determining that the user is a near view over a predetermined time interval. Pair of eye glasses. The method according to claim 12 or 13,
The controller includes a pair of ophthalmic glasses for determining a distance between the glasses and the most important object in front of the glasses. The method according to claim 14,
The range detector is a pair of ophthalmic glasses comprising a transmitter and a receiver The method according to claim 14 or 15,
And the distance detector is an ultrasonic piezo electric transducer. The method according to claim 14 or 15,
Wherein said distance detector is an infrared detector transducer. The method according to any one of claims 1 to 17,
A pair of ophthalmic glasses, wherein a portion of the distant viewing lens portion is only partially opaque in the near viewing state. The method according to any one of claims 12 to 17, wherein
A pair of ophthalmic glasses further comprising a rechargeable battery for powering the controller. The method of claim 19,
And a waterproof USB micro port configured to connect an external power supply to the rechargeable battery. The method of claim 19,
And a inductive charger coupled to the rechargeable battery, wherein the inductive charger is configured to transmit wireless energy to charge the rechargeable battery from an external power supply. The method according to any one of claims 1 to 21,
And a communication module configured to transmit glasses operating data and acceptance data and / or to receive updated settings or software from a remote unit. The method according to any one of claims 1 to 22,
A pair of ophthalmic glasses configured to determine whether the user is wearing the glasses and to enter a low power mode if the glasses are not worn The method according to any one of claims 1 to 23,
A pair of ophthalmic glasses configured to enter an ultra low power mode if the glasses are not worn for an extended time. The method of claim 20,
The controller is located inside one frame, the battery is located inside the other frame of a pair of ophthalmic glasses. 26. The method according to any one of claims 1 to 25,
The pair of ophthalmic eyeglasses prescribed and the near vision lens portion are part of a bi-focal lens (s) or progressive progressive lens (s). The method according to any one of claims 1 to 26,
Wherein the variable transparency system further comprises: wherein at least a portion of the distant viewing lens portion prescribed is not substantially opaque or transparent, at least a portion of the intermediate viewing lens portion and the near viewing lens portion are substantially clear or Or an intermediate viewing mode of a transparent user, wherein at least a portion of the intermediate viewing lens portion and the prescribed viewing distance lens portion in the near viewing mode are substantially opaque or not transparent, and at least a portion of the near viewing lens portion is substantially A pair of clear or transparent ophthalmic glasses. The method of claim 10,
The variable transparency system includes electrical wiring, and the notch further comprises a wiring conduit in a deep groove formed to receive the wiring. 29. The method of claim 28,
The frame further comprises a pair of ophthalmic glasses (nose bridge) formed to electrically connect and detachably secure the set of contacts for the variable transparency element with the wiring. 29. The method of claim 28,
The pair of ophthalmic eyeglasses further comprising a detachable nose pad having a metal tab formed to be detachably secured by the nose leg. A method of assembling ophthalmic glasses that is configured to delay progression of the myopia or substantially prevent myopia,
Installing an external lens to the frame,
Installing a variable transparency element adjacent to the external lens;
Installing an internal lens adjacent the variable transparency element, and
Electrically connecting the variable transparency element to a controller. Measuring the degree of myopia and astigmatism of the user,
Providing a viewing lens portion having a light magnification based on myopia and astigmatism,
Providing a near vision lens portion having a light magnification designed to delay progression of the user's myopia or substantially prevent myopia based on the myopia frequency, and
Providing a variable transparency element adjacent said distant viewing lens portion and / or said near vision lens portion. 33. The method of claim 32,
Determining whether the user has myopia. Providing eyeglasses with a prescribed viewing lens and a near viewing lens,
Viewing a far object using the far viewing lens unit; and
And covering the distant viewing lens portion when viewing the near object using the near viewing lens portion. As a lens assembly method,
Attaching the lens portion to the blank,
Chamfering edges of the lens portion and the blank, and
And removing the blank from the lens unit. 36. The method of claim 35,
The lens further comprises an additional lens portion, wherein the lens portion and the additional lens portion are aligned together to form the lens.

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