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<ul><li>Semi Finished Lens, Lens Blanks for RX Lab</li><li>Index: 1.49, 1.56, 1.59, 1.60, 1.67, 1.74</li><li>Coating: UC, HC, HMC, SHMC</li><li>Base Curve: 0, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000</li></ul>What Semi Finished Lens Blanks Can do?Spectacle lenses production units that transform semi-finished lenses into finished lenses according the precise characteristics of a prescription.The customization work of laboratories enables us to provide a wide variation of optical combinations for wearer needs,especially as regards the correction of presbyopia. Laboratories are responsible for surfacing (grinding and polishing)and coating (coloring, anti-scratch, anti-reflective, anti-smudge etc.) the lenses.<img src="https://sourcing-media.hktdc.com/product-original/Semi-20Finished-20Lens-20Lens-20Blanks-20for-20RX-20Lab/7949b49137fe4001a1896e9e7404a215" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="7949b49137fe4001a1896e9e7404a215"><img src="https://sourcing-media.hktdc.com/product-original/Semi-20Finished-20Lens-20Lens-20Blanks-20for-20RX-20Lab/7962867d1bf948038d476da936ccf136" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="7962867d1bf948038d476da936ccf136"><img src="https://sourcing-media.hktdc.com/product-original/Semi-20Finished-20Lens-20Lens-20Blanks-20for-20RX-20Lab/6c97140946db4111a1ec01df3110ed33" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="6c97140946db4111a1ec01df3110ed33">What is a freeform lens?"A freeform lens normally has a spherical front surface and a complex, three-dimensional back surface which incorporates the patient’s prescription. In the case of a freeform progressive lens, the back surface geometry includes the progressive design. The freeform process utilises semi-finished spherical lenses which are readily available in a wide range of base curves and indices. These lenses are accurately machined on the back side using state-of-the-art generating and polishing equipment to create the exact prescription surface.• the front surface is a simple spherical surface• the back surface is a complex three-dimensional surface<img src="https://sourcing-media.hktdc.com/product-original/Semi-20Finished-20Lens-20Lens-20Blanks-20for-20RX-20Lab/4c1b7279b3dd4c339db6d92dc7ac4065" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="4c1b7279b3dd4c339db6d92dc7ac4065">Technology for freeform lenses• Provides the flexibility to offer a wider range of high level products, even for the smaller optical laboratory• Only requires a stock of semi-finished spheres in each material from any quality source• Lab management is simplified with significantly fewer SKUs• Progressive surface is closer to the eye - providing broader fields of view in the corridor and reading area• Accurately reproduces the intended progressive design• Prescription accuracy is not limited by the tooling steps available in the laboratory• Accurate prescription alignment is guaranteed<img src="https://sourcing-media.hktdc.com/product-original/Semi-20Finished-20Lens-20Lens-20Blanks-20for-20RX-20Lab/f06c98d256e54ad99a044e044b65cc9b" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="f06c98d256e54ad99a044e044b65cc9b">

<ul><li>Conventional Progressive Lens, Stock Multifocal Lens</li><li>Index: 1.49, 1.56</li><li>Function: Blue Filter, Photochromic</li><li>Power Range: SPH: -2.00~+3.00, ADD: +1.00~+3.00</li><li>Coating: UC, HC, HMC</li></ul>What Are Progressive Lenses?Progressive lenses are true “multifocal” lenses that provide an infinite number of lens strengths in one pair of glasses. Optimum-vision runs the length of the lens to allow for each distance to be clear:<img src="https://sourcing-media.hktdc.com/product-original/Conventional-20Progressive-20Lens-20Stock-20Multifocal-20Lens/3aa03c8dfacb41b1825961f0ee60fefe" style="width: 858px;" class="fr-fic fr-dib" data-productmediaid="3aa03c8dfacb41b1825961f0ee60fefe">Top of lens: ideal for distance vision, driving, and walking.Middle of lens: ideal for computer vision, intermediate distances.Bottom of the lens: ideal for reading or completing other close-up activities.<h2 style="text-align: left;">Who Needs Progressive Lenses?</h2>As we age, it becomes more difficult to look at objects that are close to our eyes. This is a very common condition called presbyopia. Most people first notice when they have trouble reading fine print, or when they have headaches after reading, due to eyestrain. Progressives are intended for people who need correction for presbyopia, but do not want a hard line in the middle of their lenses.<img src="https://sourcing-media.hktdc.com/product-original/Conventional-20Progressive-20Lens-20Stock-20Multifocal-20Lens/a106a112f1f04a7f8a5da6f93e6a9aae" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="a106a112f1f04a7f8a5da6f93e6a9aae"><h2 style="margin-top: 13.5pt; margin-bottom: 9pt; text-align: left;">Benefits of Progressive Lenses</h2>With progressive lenses, you won't need to have more than one pair of glasses with you. You don't need to swap between your reading and regular glasses.Vision with progressives can seem natural. If you switch from viewing something up close to something far away, you won't get a "jump" like you would with bifocals or trifocals.<h2 style="margin-top: 13.5pt; margin-bottom: 9pt; text-align: left;">Drawbacks of Progressive Lenses</h2>It takes 1-2 weeks&nbsp;to adjust to progressives. You need to train yourself to look out of the lower part of the lens when you're reading, to look straight ahead for distance, and to look somewhere between the two spots for middle distance or computer work.During the learning period, you may feel dizzy and nauseas from looking through the wrong section of lens. There may also be some distortion of your peripheral vision.<img src="https://sourcing-media.hktdc.com/product-original/Conventional-20Progressive-20Lens-20Stock-20Multifocal-20Lens/41b364eab02a45fd84263750973aa115" style="width: 767px;" class="fr-fic fr-dib" data-productmediaid="41b364eab02a45fd84263750973aa115"><img src="https://sourcing-media.hktdc.com/product-original/Conventional-20Progressive-20Lens-20Stock-20Multifocal-20Lens/ae6ca31e6b814182992126f759433841" style="width: 804px;" class="fr-fic fr-dib" data-productmediaid="ae6ca31e6b814182992126f759433841">You Need A Pair&nbsp;of Anti-blue Progressive&nbsp;LensesAs blue lights nowadays is everywhere, anti-blue Progressive Lenses are ideal for indoor activities, such as watching TV, playing on the computer, reading books and reading newspapers, and suitable for outdoor walks, driving, traveling and daily wear throughout the year.<img src="https://sourcing-media.hktdc.com/product-original/Conventional-20Progressive-20Lens-20Stock-20Multifocal-20Lens/05606de323aa4792a4d82e03204122be" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="05606de323aa4792a4d82e03204122be">

Plastic Finished Single Vision LensesTechnical InformationMaterial: CR-39/NK-55/PC/MR-8/MR-7/MR-174Refractive Index: 1.49/1.56/1.59/1.60/1.67/1.74UV Cut: 350-390nmAbbe Value: 58Specific Gravity: 1.32Surface Design: SphericalPower Range: -6/-2, +6/-2, -6/-4, +6/-4Coating Choice: UC/HC/HMC/SHMC/BHMCRimless: Not Recommended Why to Choose CR-39 Optical Lenses?Crystal Vision (CR) are top quality lenses made by one of the world’s largest lens company.CR-39, or allyl diglycol carbonate (ADC), is a plastic polymer commonly used in the manufacture of eyeglass lenses.The abbreviation stands for “Columbia Resin #39”, which was the 39th formula of a thermosetting plastic developed by the Columbia Resins project in 1940.Owned by PPG, this material is revolutionising lens making.Half as heavy as glass, far less likely to shatter, and optical quality nearly as good as glass.CR-39 is heated and poured into optical quality glass moulds – adapting the qualities of glass very closely.a) Economicb) Lightc) Shatter resistantd) Can be tinted &amp; coatede) UV protection<img src="https://sourcing-media.hktdc.com/product-original/Normal-20Clear-20Lens/a484cbd168b04c6898fc3f785146108b" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="a484cbd168b04c6898fc3f785146108b">CR-39 Ophthalmic Lens TreatmentUV Protection:The UV rays in sunlight can be harmful to the eyes.Lenses that block 100% UVA and UVB help to ward off the damaging effects of UV radiation.<img src="https://sourcing-media.hktdc.com/product-original/Normal-20Clear-20Lens/d7e364ed67ae43b48e275cee96567d86" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="d7e364ed67ae43b48e275cee96567d86">Scratch-Resistance:Scratches on lenses are distracting,unsightly and in certain conditions even potentially dangerous.They can also interfere with the desired performance of your lenses.Scratch-resistant treatments toughen up the lenses making them more durable.<img src="https://sourcing-media.hktdc.com/product-original/Normal-20Clear-20Lens/c26fbda6ab4f4fb58b0840a78e39e6f9" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="c26fbda6ab4f4fb58b0840a78e39e6f9">Anti-reflective Treatments (AR):For fashion, comfort and clarity, anti-reflective treatments are the way to go.They make the lens nearly invisible, and help cut glare from headlights, computer screens and harsh lighting.AR can enhance the performance and appearance of just about any lenses!<img src="https://sourcing-media.hktdc.com/product-original/Normal-20Clear-20Lens/a2a86bf7d5ff47c7bb331d46b4a5b1bb" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="a2a86bf7d5ff47c7bb331d46b4a5b1bb">

Sun lenses offer a wide range of features and benefits to suit every lifestyleFeatures &amp; Benefits• Available in every index 1.49, 1.60, 1.67, Blue Cut• Plano and prescription available• Variety of tints: solid and gradient color• 100% UV protection<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/dee5fa0db6614c4dbf30a38675c48f16" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="dee5fa0db6614c4dbf30a38675c48f16">Colourful lenses – bring colour into your life Escape the greyness of the daily grind! Whether in subtle nuances, bold tints or a trendy colour mix – sometimes there just has to be colour. Coloured lenses are currently ‘in’: they convey zest for life and are the perfect extra to match your favourite outfit. And they improve vision. Light tints e.g. in blue, yellow or green give the world greater contrast, so are ideal for sport and driving at night-time.About Sun LensesWhether you enjoy rigorous sports or less strenuous outdoor activities, your eyes need protection. Sun lenses offer a wide range of features and benefits to suit every lifestyle and vision correction need in direct sunlight and bright environments.<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/7bfdf83c756041258ab4e9cd5cd141b5" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="7bfdf83c756041258ab4e9cd5cd141b5"><img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/49caa3ebc840475f8dd862d60a7eab31" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="49caa3ebc840475f8dd862d60a7eab31"><img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/59b848ab2dc54db4852dc71417b00517" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="59b848ab2dc54db4852dc71417b00517">What is UV?The sun is the main source of Ultraviolet (UV) rays, which can cause damage to your eyes. The sun emits 3 types of UV rays: UVA, UVB and UVC. UVC is absorbed by the Earth’s atmosphere; UVB is partially blocked; UVA rays are not filtered and can therefore cause the most damage to your eyes1. While a variety of sunglasses are available, not all sunglasses provide UV protection – it is important to choose lenses that offer UVA and UVB protection when purchasing sunglasses. Sunglasses help prevent sun exposure around the eyes which can lead to skin cancer, cataracts and wrinkles. Sunglasses are also proven safest visual protection for driving and provide the best overall wellness and UV protection for your eyes outdoors.<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/caeb5e787eea4b73b81d9a0393a3bf1d" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="caeb5e787eea4b73b81d9a0393a3bf1d">What types of lenses are available?Shades of Gray Tint<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/b1b0bb0358de45109c1aef9f07d238c2" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="b1b0bb0358de45109c1aef9f07d238c2">Blue Light Blocking Brown/Amber<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/7a3574e775094ba58b06650e731c420e" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="7a3574e775094ba58b06650e731c420e"> Get into the Green Scene<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/f4eebeb7d32a43e6ae84a9b82b08e90f" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="f4eebeb7d32a43e6ae84a9b82b08e90f"> Say Hello to Yellow Lenses<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/951a32c8d0864e0280b526a5aaa525bf" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="951a32c8d0864e0280b526a5aaa525bf"> Blue Sunglass Lenses<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/bfb94332c1e7480fbadc737d19b2a7d3" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="bfb94332c1e7480fbadc737d19b2a7d3"> Rockin’ Red Sunglass Lenses<img src="https://sourcing-media.hktdc.com/product-original/Sun-20Lens-20Drive-20Lens-20Fashion-20Eyeglasses-20Lens-20Tinted-20Sun-20Lens/34ddbef7ab724b67a3f241a714fa471b" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="34ddbef7ab724b67a3f241a714fa471b">

<span style="color: rgb(0, 0, 0); font-family: Roboto, 微軟雅黑體, &quot;Microsoft JhengHei&quot;, 微軟正黑體, Arial, sans-serif; font-size: 18px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;">1.49, 1.56, 1.59, 1.60, 1.67, 1.74 Anti Blue Light Lenses<img src="https://sourcing-media.hktdc.com/product-original/Blue-20Cut-20Lens-20Blue-20Block-20Lens-20Blue-20Filter-20Lens-20Anti-20Blue-20Light-20Lens/7f606e228ed04825acc3861cfdf0e637" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="7f606e228ed04825acc3861cfdf0e637">·More Powerful to Block Harmful Blue LightLight blue coating is that filters out specific wavelengths of &nbsp;blue light from reaching the patient's ocular tissue.It is base on Anti-Reflective coating, similar to standard AR treatment,except it is specific to filtering out the narrow band of blue light from 415-455(nm)which has been studied and understood to impact circadian rhythm and potentially impact the retina.<img src="https://sourcing-media.hktdc.com/product-original/Blue-20Cut-20Lens-20Blue-20Block-20Lens-20Blue-20Filter-20Lens-20Anti-20Blue-20Light-20Lens/de333173637343f0b0c84bcc9d16bdd7" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="de333173637343f0b0c84bcc9d16bdd7">· Easy-to-CleanIncorporated into the AR layer of Glacier Achromatic UV, is a unique, enhanced,and transparent layer with powerful anti-static properties that keep the lenses dirt and dust-free.<img src="https://sourcing-media.hktdc.com/product-original/Blue-20Cut-20Lens-20Blue-20Block-20Lens-20Blue-20Filter-20Lens-20Anti-20Blue-20Light-20Lens/d282595d41344504ab5e13e37775bd46" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="d282595d41344504ab5e13e37775bd46"> ·Water RepellentDue to its specially developed super-slippery composition, the coating is appliedin an innovatively thin layer that is both hydro- and oleo-phobic.Its perfect adherence to the top of the AR and HC coating stack resultsin a lens that is also effectively anti-smudge. That means no more hard-to-clean grease or water spots that interfere with visual acuity.·Lens Protection from ScratchesA dual-lens protection process provides lenses with an extremely hard,scratch-resistant coat that is also flexible, preventing lens coat cracking,while protecting the lenses from the wear-and-tear of everyday use.And because it offers superior protection, it enjoys an extended warranty.<img src="https://sourcing-media.hktdc.com/product-original/Blue-20Cut-20Lens-20Blue-20Block-20Lens-20Blue-20Filter-20Lens-20Anti-20Blue-20Light-20Lens/b2d6c2a60dbc4e9d90f7c64e87cd513f" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="b2d6c2a60dbc4e9d90f7c64e87cd513f">How Blue Light Reducing Lenses Can Help.Blue light reducing lenses are created using a patented pigment that isadded directly to the lens before the casting process. That means the blue lightreducing material is part of the entire lens material, not just a tint or coating. Thispatented process allows blue light reducing lenses to filter a higher amount of both blue light and UV light.<img src="https://sourcing-media.hktdc.com/product-original/Blue-20Cut-20Lens-20Blue-20Block-20Lens-20Blue-20Filter-20Lens-20Anti-20Blue-20Light-20Lens/1b013f8979c04bbaa15412a37a6dd85d" style="width: 902px;" class="fr-fic fr-dib fr-fil" data-productmediaid="1b013f8979c04bbaa15412a37a6dd85d">

Index: 1.56, 1.60, 1.67, 1.74Coating: Green, UC, HC, HMC, SHMCPower Range: SPH -20.00~+10.00, CYL: 0.00~--6.00, ADD: +0.50~+3.50

Photochromic Eyeglasses Lens, Photo Grey Lens, Photo Brown Lens, Color Change Lens, Spin Coating Photochromic Lens<ul><li>Index: 1.56, 1.60, 1.67</li><li>Coating: Blue, Green, UC, HC, HMC, SHMC </li></ul>The Photochromic Spin Coat TechnologySpin coating technique is used for making a thin coating on relatively flat substrates. The solution of material to be coated is deposited onto the substrate which is spun off at a high velocity in a range of 1000-8000 rpm and leaving a uniform layer.<img src="https://sourcing-media.hktdc.com/product-original/Photochromic-20Eyeglasses-20Lens/564787e1238f4c2497dffeed070ca71b" style="width: 895px;" class="fr-fic fr-dib" data-productmediaid="564787e1238f4c2497dffeed070ca71b">Spin-coating technology makes&nbsp;the photochromic coating on the surface of lens, so color only changes on lenses surface, while in-mass technology make the whole lens change color.<img src="https://sourcing-media.hktdc.com/product-original/Photochromic-20Eyeglasses-20Lens/370f6c35ac3e43d39b20da9971279505" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="370f6c35ac3e43d39b20da9971279505"> How Do Spin Coat Photochromic Lenses Work?Spin coat photochromic lenses work the way they do because the molecules that are responsible for the darkening of the lenses are activated by the ultraviolet radiation in sunlight. UV rays can penetrate clouds, which is why photochromic lenses are capable of darkening on cloudy days. Direct sunlight is not required for them to work. They shield eyes from 100 percent of the harmful ultraviolet rays from the sun. This mechanic is also used inside most windshield glasses in cars. Windshields are designed this way to help drivers see in sunny conditions. This also means that since the UV rays that enter a car are already filtered by the windshield, spin coat photochromic eyeglasses will not themselves darken.<img src="https://sourcing-media.hktdc.com/product-original/Photochromic-20Eyeglasses-20Lens/e3e899f3fe5b42a4945dbe28f0342564" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="e3e899f3fe5b42a4945dbe28f0342564">Blue Block Spin Coat Photochromic Lenses Help Protect Against Harmful Blue LightSpin Coat Photochromic Lenses is available in blue block and non blue block. Blue block Spin Coat Photochromic lenses help protect against harmful blue light both indoors and outdoors. Indoors, blue block spin coat photochromic lenses filter&nbsp;blue light&nbsp;from digital products. Outdoors, they reduce&nbsp;harmful UV light and blue light from sun light. CoatingEMI layer: Anti-staticHMC layer: Anti-reflectiveSuper-Hydrophobic layer: Water-repellPhotochromic layer: UV protection<img src="https://sourcing-media.hktdc.com/product-original/Photochromic-20Eyeglasses-20Lens/680d47e087d640a095a687a1ee7814fa" style="width: 894px;" class="fr-fic fr-dib" data-productmediaid="680d47e087d640a095a687a1ee7814fa"> In-mass Photochromic VS Spin Coat Photochromic<img src="https://sourcing-media.hktdc.com/product-original/Photochromic-20Eyeglasses-20Lens/903fae193cea4705b574441c918a44d5" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="903fae193cea4705b574441c918a44d5">

Index: 1.56, 1.60Coating: Green, UC, HC, HMCPower Range: SPH: 0.00~-6.00, CYL: 0.00~--2.00<img src="https://sourcing-media.hktdc.com/product-original/Myopia-20Control-20Eyeglasses-20Lens-20Defocus-20Lens-20Children-20Lens/e10a3d1690254757b3dba275de2608e2" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="e10a3d1690254757b3dba275de2608e2"> Advantages of YOULI Myopia Control Lens1. Myopia Control Single Vision Lenses2. Assisting with Myopia Management in Children3. Maximum Visual Comfort4. Periphery of the Lens is Responsible for Controlling Myopia5. Centre of the Lenses Corrects the Child's Myopia and Ensures Clear Distance Vision<img src="https://sourcing-media.hktdc.com/product-original/Myopia-20Control-20Eyeglasses-20Lens-20Defocus-20Lens-20Children-20Lens/fa3c325b4e05466e833dc98693ad2e6f" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="fa3c325b4e05466e833dc98693ad2e6f">Treatments to slow or stop progression of nearsightednessYOULI myopia control eyeglasses lenses. &nbsp;It is an innovative spectacle lens for myopia control, and designed for teenagers under 18. It uses three core technologies to control myopia progression, and provides clear vision and myopic defocus simultaneously at all viewing distances.(1) How do the YOULI myopia control lenses that can help slow or prevent myopia progression? Myopia defocus control technology is the answer.Well from the pictures above you can find -- it can change the way light focuses on the retina between the central and peripheral retinal areas. &nbsp;Peripheral defocus theory suggests that this designs work at controlling myopia because they create that all important peripheral myopic defocus, interrupting the feedback loop for the eye to continue lengthening that is our bane in glasses and single vision lens wear.<img src="https://sourcing-media.hktdc.com/product-original/Myopia-20Control-20Eyeglasses-20Lens-20Defocus-20Lens-20Children-20Lens/860d676774be471590354467408adc42" style="width: 902px;" class="fr-fic fr-dib" data-productmediaid="860d676774be471590354467408adc42"> (2) Central refractive correction technologyAccording to the imaging theory of emmetropia, the core optical zone of the YOULI myopia control lens is around 12mm, and the luminosity is basically not reduced. The retina forms a clear object image to achieve the refractive correction effect.

<ul><li><span style="color: rgb(0, 0, 0); font-family: Roboto, 微軟雅黑體, &quot;Microsoft JhengHei&quot;, 微軟正黑體, Arial, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">1.56 Blue Filter Lens with Anti Fog AR Coating&nbsp;</li><li>Coating: HMC</li><li>Power Range: SPH -6.00~+6.00, CYL: 0.00~-2.00</li><li>MOQ: 200 pairs</li></ul>

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