A new lens has been brought to the market that can react inside a car or behind the windscreen without UV rays and uses daylight alone to trigger the reaction. The best lenses on the market to date are “Drivewear” lenses which are photochromic polarized lenses. Polarized lenses and UV-protected lenses aren’t the same thing. Photochromic lenses are a special type of lens that starts out clear and turn dark in the bright sunlight. Photochromic lenses are available with most of plastic material mentioned above except 1.74 super high index lenses. Tiny molecules of silver halide and chloride are embedded within a photochromic lens which is invisible and clear until exposed to sunlight/UV rays. Those who are using prescription lenses, the usage of photochromic lenses are an ideal way to secure your eye from harmful sun rays. Transitions VII are not suitable for driving as the windscreen blocks the UV required to transition the lens.. Transitions XTRActive are designed to change to sunglasses when outdoors and are darker than typical lens, they also have a light tint indoors to shade from harsh lighting. This means you can have varifocal photochromic lenses or single vision photochromic lenses. Cons of Photochromic Lenses. Being able to see in changing weather conditions is incredibly important for such situations, especially when you don’t know how the light will shift. It is preferred the choice to get a pair of polarized prescription sunglasses for driving. Skiers who constantly move around the mountain, or those who do their skiing in different places, will also love photochromic models. All Rights Reserved. Designed to be completely clear in indoor environments and at night while quickly adapting and darkening in bright sunny outdoor conditions. Photochromic lens technology is used on prescription glasses, thereby eliminating the need for you to buy prescription sunglasses. This process changes the molecules and they darken to a sunglasses shade/tint. One medical application involves tinting for certain shades of red. It also means you can have photochromic lenses even if you do not have a glasses prescription. Online Opticians UK.com Registered office Online Opticians UK , Business First , Davyfield Road , Blackburn , Lancashire , BB1 2QY , OnlineOpticiansUk.com is the trading name of Digital Optics Limited. Photochromic lenses, also known as light-adaptive lenses, are lenses that start off clear, or nearly clear, and then darken when exposed to sunlight. LifeRx Photochromic Lenses offer great value without having to sacrifice quality or performance. They provide greater comfort, since they reduce eyestrain and glare in the sun. Photochromic lenses, sometimes referred to as transition lenses, are eyeglass lenses that will turn dark (resembling sunglasses) in sunlight and become clear again when indoors.This is the result of chemical responses to the presence (and absence) of ultraviolet light. Photochromic lenses also called light-adaptive lenses, or variable-tint lenses, look like regular clear lenses when indoors but automatically darken when exposed to sunlight. If that still isn’t ringing a bell - you may know them as transition lenses, because Transitions Optical is the most popular brand of photochromic lenses … This type of lenses is ideal for the different levels of light both inside and outside. The reason these lenses darken in sunlight but not indoors under artificial light, is that room light does not contain the UV (short wavelength light) found in sunlight. WeeTect Photochromic Lenses (WPL) also names photochromatic lenses, transitional lenses, photogray lenses or reaction lenses. Other terms used for photochromic lenses include "light-adaptive lenses" and "variable tint lenses." When the UV source is removed the lenses return to their clearer un-reacted state. Reaction Times – Although photo lenses reaction from clear to sunglasses is quite quick, typically within 30 – 60 secs, the reversal takes a little longer as much as 5 minutes depending upon the temperature of the lens which could be dangerous if entering a dark room or certainly inconvenient at best. This unique photochromic lens provides remarkable comfort to wearers in the brightest sun and hot conditions. This a very competitively priced lens and comes with our standard all-inclusive coating package. Now that you have learnt how photochromic lenses work, it will be important to know the exact reasons for investing in this accessory. Both lenses are great at doing what they do and both can be “the best” depending on the situation and occasion. Photochromic sunglasses are an awesome pair of equipment you have to purchase right now. Our photochromic and polarized sun lens technology is coupled with specific colors for optimal driving vision. UVA and UVB light is 100% blocked, protecting wearers eyes at all times. Designed to be completely clear in indoor environments and at night while quickly adapting and darkening in bright sunny outdoor conditions. Photochromic Lens Temperature Dependency: Photochromic lenses change state in a chemical and thermal process which can be affected/limited by a process known as 'temperature dependency'. 0 to 3 - visible light transmission rate: 12% - 87%), they get darker or lighter to match changing light conditions. You don’t even need to buy prescription sunglasses. To overcome this problem, lens manufacturers have introduced photochromic lenses that are designed primarily for outdoor wear and for use when driving in sunlight. All Rights Reserved. I can't be bothered with the faff or expense of having multiple lenses so ideally want some that will work at 7.00 in January and the middle of the day in August (all in the UK so probably the same dingy light anyway). It is made from photochromic film and polycarbonate lenses co-injection molding or photochromic coating on polycarbonate lenses. Traditional photochromic lenses are made of plastic, glass or polycarbonate and change from transparent lenses to darker lenses when exposed to sunlight. A chemical process takes place when exposed to sunlight/UV and the molecules effectively move, change shape and absorb the light. This image shows how transitions Drivewear photochromic lenses react in different conditions: Photochromic lenses are available in many lens types, materials, coatings and designs, such as varifocal lenses, high index lenses and polarised lenses. Performance in Ultra Violet Confined Areas – A specifically bothersome disadvantage to utilizing photochromic lenses for a few customer is the fact that the lenses will not grow dim if the user is in an area where close by windows have ultra violet ray deflection. This concern usually encountered in a car with tint intended to deflect ultra violet rays. It is up to you to decide the benefits but please feel free to contact us and speak to one of our advisers should you require any further information or advice. If that still isn’t ringing a bell - you may know them as transition lenses, because Transitions Optical is the most popular brand of photochromic lenses … Light protection. In this case, getting a more expensive sunglasses with features such as photochromic is reasonable as lo… Lenses thus go from dark to light faster, and vice versa. The big advantage of photochromic lenses is their versatility. Some people who wear photochromic also have a cheaper tinted pair just to use in the car. Photochromic lenses darken on exposure to sunlight and protect the eyes from ultraviolet radiation. Enter Mobile No. The UV reactive chemicals are mixed in with the lens monomer (material). Below are some of the benefits of photochromic lenses: Reducing Unnecessary Expenses. This question simply can’t be answered with a “this – or that” because the details found in both polarized and photochromic lenses are beneficial in their own right. Therefore, wearing photochromic glasses while using electronic gadgets, will protect you from the harmful effects of blue light. Applications Sunglasses. Convenience - You only need to own 1 pair of glasses for both indoors and outdoors in the sun as opposed to needing to switch between 2 pairs of regular glasses to sunglasses. How To Buy Transitions or Photochromic Lenses: Buying Transitions or Photochromic Lenses and enhancing your driving experience, visual acuity, colour contrast, visual comfort and also block out 100% of harmful UVA and UVB light, is as simple as adding it to your lens options when choosing your lenses. If you want to order Transitions®, you can choose Photochromic lenses on our website. Driving – Standard photochromic lenses do not work inside a car due to the windscreen blocking out the UV rays which are needed to active the chemical process which causes the lens to darken. XTRActive lenses are also designed to react inside the car and behind the windscreen to protect your eyes from harsh sunlight while driving. PERFORMANCE PHOTOCHROMIC SUNGLASSES The Kapvoe Elite Sunglasses are a high coverage option in GBS’s cycling line, providing sufficient protection against the elements. They are typically used as sunglasses that conveniently switch from a clear lens indoors, to a sunglasses depth tint when outdoors, and vice versa. Eye Health – Reducing your exposure to the suns harmful UV rays can lower the risk of cataracts or other eye/age related problems. Please don't hesitate to contact us should you require additional information and we will be happy to assist you in selecting the correct lens options for your prescription, lifestyle and budget. They are available for most prescriptions. A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. Our entry level level photochromic lens is the FluxLD® lens by Adnuo. Discover Transitions Optical photochromic lenses and glasses. Yes, photocromatic lenses are great. I acknowledge laser protective lenses are controlled under International Traffic in Arms Regulations (ITAR). Photochromic lenses are made of many lens materials including plastic, glass or polycarbonate. Blue light can interfere with melatonin, which regulates the body's sleep cycle and circadian rhythm. Photochromic lenses help to reduce eye strain and decrease the risk of eye damage such as cataracts later in life by blocking up to 100% of the sun’s harmful ultraviolet light. (Although there are special photochromic lenses that can react inside a car or behind glass which are specialist lenses known as 'transition drivewear lenses' which combine both photochromic and polarisation technology. They adapt to environmental changes (indoor, outdoor, high or low brightness). They allow you to stop juggling between your pair of clear glasses and your sunglasses. They provide daily protection against harmful UV rays, by absorbing 100% of UVA and UVB rays. They are intelligent lenses that go darker with the equivalent exposure of sunlight. Property:- They does not loose their photochromic effect even after 3-4 years. This can be used in clothing but is most commonly found in photochromic lenses for glasses, which darken when exposed to ultraviolet light. That process is reversed by thermally activated processes when the exposure to ultraviolet light ends. These lenses have been around for a decade or more, and they offer the convenience of sunglasses without having to wear them over your prescription glasses or having to constantly switch between the two. Purchasing sunglasses is therefore essential to properly protect yourself against UV rays. They offer a convenient way to protect your eyes outdoors from UV rays and bright light without having to carry around a pair of sunglasses. The report on the photochromic lenses market provides a holistic update, market size and forecast, trends, growth drivers, and challenges, as well as vendor analysis. They are typically used as sunglasses that conveniently switch from a clear lens indoors, to a sunglasses depth tint when outdoors, and vice versa. The report offers an up-to-date analysis regarding the current global market scenario and the overall market environment. Skip to main content. The reason why they could be gained much popularity is that they get darkened like sunglasses on getting exposed to UV rays. What the makers say- With a quick reacting and sensitive photochromic lens that can let as little as 17% of light in, the Summit model can handle any rapidly changing environment effortlessly. Photochromic pigments change colour when exposed to light. Transitions XTRActive are designed to change to sunglasses when outdoors and are darker than typical lens, they also have a light tint indoors to shade from harsh lighting. Drivewear lenses feature a green/yellow colour tint for use in low light and adjust to a darker red/brown colour tint for when light is at it's most excessive. This is because blue light forms part of the light spectrum that makes up the visible light of the sun. Photochromic lenses darken through different processes, depending on the type of lens and brand. Arrowhead Towne Center. Transitions XTRActive activate when driving to reduce sun glare. The market is driven by the availability of OTC products. This lens is available only in index 1.57 and comes in brown and gray. Photography is a key example, but in this field, the process is not reversible. Our Reactions lenses cleverly adapt to light conditions: indoors, the photochromic lenses are clear but as soon as you step outside into bright, natural light, they darken, giving you 100% UV protection. When activated, Transitions XTRActive is our darkest Transitions lens in all conditions. **Transitions lenses are the brand of photochromic lenses most often recommended by eyecare professionals. © 2020 Opto-Réseau. It’s also a critical tool in certain moments such as while skydiving; the condition where it’s impossible to change the lens, at the same time, your vision must be good and not impaired. This site uses cookies to provide and improve your shopping experience. If you want to benefit from this improved service, please opt-in. Photochromic materials are used most extensively in ophthalmic sunscreening applications. Photochromic with a wider variation in transmission between the faded and darkened states are suitable for a narrow range of prescription as the variation tint density across the lens is more apparent. Plastic photochromic lens molecules of silver and halide are usually layered or embedded evenly onto the surface of the lens providing an even shade of tint when darkening. Plastic Photochromic Lenses Vs Glass Photochromic Lenses: A new lens has been brought to the market that can react inside a car or behind the windscreen without UV rays and uses daylight alone to trigger the reaction. We use Sunsensors™ for 1.56 index photochromic lenses, Transitions® lenses+ for every other index photochromic lenses. Photochromic lenses automatically darken when exposed to a certain amount of light. Transparent base color with a smoke tint when activated. Sign up for all the latest news, products and special offers: Online Opticians UK offer Cheap Prescription Glasses & Discount Spectacles from £14.95 & Cheap Prescription Sunglasses from £39.95, https://en.wikipedia.org/wiki/Photochromic_lens, https://www.hoyavision.com/uk/discover-products/eye-care-professionals/sensity-photochromic-lenses/, https://www.essilor.co.za/products/transitions, Buying Glasses Online - The Ultimate Guide, High Index Lenses | Comparisons, Benefits & Prices, Hoya BlueControl – Digital Devices Lens Coating Explained. We carry photochromic lenses for 1.57, 1.61, 1.67 and 1.71 lenses for single-vision glasses. Cross-country skiers can especially utilize the technology, as it helps them stay on top of their surroundings as they move fro… Buying a lens that you can use both indoors and outdoors is cost effective in the long-run. 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