Transitions lenses comparison and features as prescription sunglasses.
Transitions Optical has used 6,000+ photochromatic dyes,1,200+ patents in its development. Real-world testing in hundreds of scenarios has proven the success of transitions glasses.
Our eyes are overstimulated by our modern lifestyles. We are exposed to more artificial lights, brighter lights, stronger lights and glare.
As 9 in 10 people are light-sensitive, the lenses can block 100% UV rays, filter blue rays, and reduce glare.
Your combined indoor and outdoor solution for glasses and sunglasses. Don’t let your eyes strain in varying light conditions. Have them intelligently adjust.
Plastic photochromic lenses were developed from the glass forms of 1960 in the 1990s and have been continually improving since. Rather than being silver-based, these lenses use naphthopyrans and other organic molecules that limit light transmission through a change in their molecular structure triggered by UV light.
Edwin Land developed Polaroid technology in the 1930s also has improved and can be included with a variety of lens colours, gradients, multi coats, mirror coatings, blue blockers, enhanced UV protection, variable polarisation and different grades of photochromics for different uses. Digital devices have now been shown to negatively impact comfortable vision, whereas the danger from harmful UV rays has been long understood.
Damage from UV exposure is cumulative, building every time your eyes are exposed to the sun, so transitions prescription glasses offer convenient protection
Of the XTRActive portfolio, XTRActive new generation is the most popular but the XTRACTIVE and GEN 8 portfolio are equally popular. T7 is now gen 8 XTRActive is now XTRActive new generation
Vantage is now XTRActive Polarized. All old technologies are discontinued and no longer in production
We need to consider your level of light sensitivity?
What product would benefit your lifestyle the most?
What colour do you prefer?
Research shows us 9/10 are light sensitive and 3/10 are very light sensitive!
So Gen8 probably used usually 6/10 patients
XTRActive products 3/10 patients
KEY PERFORMANCE ATTRIBUTES Transitions GEN 8
Transitions Signature GEN 8 darken up to a category three sunglass.
It darkens outdoors in seconds
Returns to clear faster than ever
Dark tint outdoors
Fully clear indoors
Filters blue light inside and outdoors
Blocks 100% UV rays
Long-lasting quality
Available in seven colours Grey, Brown, Graphite Green, Emerald, Sapphire, Amethyst, Amber
Everyone who wants a clear lens indoors and hassle-free comfort when outdoors (very light-sensitive wearers may prefer other products).
Perfect for those who want to combine frames and lens colours for an individualised eyewear look.
Ideal for children also
Filters blue light emitted by digital devices, screens, LED lights and the sun
Filters 20% blue light indoors
Filters 86% light outdoors
Blocks 100% UV rays
We can show you the unactivated Transitions Signature GEN 8 lenses in our demonstration tools
Indoors and at night Transitions Signature GEN 8 lenses are virtually clear, especially with an anti-reflective coating.
Gen 8 VS SIGNATURE VII
Faster to fade back – almost 3 minutes faster
Up to 30% faster to activate to category three darkness
Darker outdoors
Filters more blue light outdoors
Longer lasting performance
We can demonstrate best by activating the Transitions Signature GEN 8 lenses for a few seconds to mid-tint.
The lens colours are most vibrant when at mid-tint.
Mid-tint is perfect for shady, overcast or partially sunny conditions, whereas the fully darkened to full tint occurs in bright light.
Trans Xtractive is the darkest Transitions lens outdoors
Darkens behind car windscreen
Up to category 2 sunglass
Clear indoors with a hint of tint
Helps to reduce harsh indoor light
Highest level of blue light filtering in Transitions range
Filtering increases outdoors where blue light is strongest
100% UV blockage
Colours Grey, Brown, Graphite Green
Transitions XTRActive uses unique dyes to darken in the car.
Regular photochromic lenses do not darken much – if at all – in the car because the windscreen blocks UV.
Transitions XTRActive dyes respond to both visible and UV light to activate.
Both Transitions XTRActive new generation and Transitions XTRActive Polarised are clear indoors and extra dark outdoors, even in hot temperatures. They also work in the car.
Transitions XTRActive new generation is the darkest photochromic in hot temperatures and in the car.
Transitions XTRActive new generation lenses help provide the highest blue light filtration indoors( at least 34% of blue light indoors), and filter up to 90% of blue light outdoors.
Transitions XTRActive new generation lenses are extra dark outdoors and the darkest photochromic light intelligent lens in hot temperatures. They are the only photochromic lens to achieve a category 3 level of darkness when it’s hot – the same level as sunglasses. Transitions XTRActive new generation lenses are the darkest photochromic lens in the car, helping to protect your eyes from bright sunlight whilst driving( the only photochromic lens to reach category 2 levels in the car)
All Transitions lenses, including Transitions XTRActive new generation lenses, block 100% of UVA and UVB rays to help protect your eyes from the harmful effects of ultraviolet rays emitted by the sun.
Transitions XTRActive new generation lenses return from a dark to a clear lens faster than ever, providing 35% faster fadeback
Choose your style with Transitions XTRActive new generation iconic colours:
GREY
BROWN
GRAPHITE GREEN
Boost your look even further
with Transitions XTRActive Style Mirrors. Available in previous generation of Transitions XTRActive only.
SILVER MIRROR
GREEN MIRROR
BLUE MIRROR
VIOLET MIRROR
COPPER MIRROR
GOLD PINK MIRROR
Transitions XTRActive Polarised is the only dynamic polarised lens. Indoors and in the car it is unpolarised. When exposed to UV outdoors it polarises as it darkens.
Respective features
INDOOR CLARITY
Hint of protective tint
SPEED TO CLEAR Up to 2x faster to fade back and Up to 35% faster to fade back
OUTDOOR DARKNESS Extra Dark: Even in hot temperatures and Up to category 35 Extra Dark: Darkest in hot temperatures. Only photochromic to achieve category 3 in hot temperatures
IN CAR ACTIVATION Darkens in car Up to category 2 The darkest in the car Up to category 2
POLARISATION Yes Up to 90% polarisation efficiency versus no
BLUE LIGHT FILTERING Yes
Best blue light filter indoors Yes
Best overall blue light filter
UV BLOCKAGE 100% UVA + UVB blockage
Transitions XTRActive Polarized lenses : Transitions XTRActive new generation lenses are extra dark outdoors and do not polarise. The Transitions range features Transitions XTRActive Polarized lenses which are dark outdoors and polarised outdoors in the sun. They are both ideal for patients who are very light sensitive or who are frequently exposed to intense bright light.
Enjoy always-on filter; indoors with a hint of tint, and outdoors when activated. Transitions XTRActive Polarized lenses help provide the best blue light filtering indoors, and filters up to 90% of blue light outdoors
Designed for reflective glare, Transitions XTRActive Polarized lenses become polarised as they darken outdoors, achieving a polarisation efficiency of up to 90% even in hot temperatures, similar to polarised sunglasses.
DARKNESS EXTRA-DARK UP TO CATEGORY 3 Transitions XTRActive Polarized lenses become extra dark when they activate outdoors.
Transitions XTRActive Polarized darken behind the windscreen to help protect your eyes from bright light. They do not polarise in the car since the windscreen blocks UV rays
All Transitions lenses, including Transitions XTRActive Polarized lenses, block 100% of UVA and UVB rays to help protect your eyes from the harmful effects of ultraviolet rays emitted by the sun.
Transitions XTRActive Polarized lenses return to clear faster than ever. They do not darken or polarise indoors so you can see your digital device screens clearly while still being protected.
These lenses help to reduce glare from the sun, so you have sharper vision and can see through reflective surfaces such as a window or water.
Reduce reflective glare with Transitions XTRActive Polarized lenses.
Outdoors smooth, shiny surfaces like snow, sand, car windows, concrete, metal and buildings can reflect glare into your eyes and lenses.
By reducing this reflected glare, Transitions XTRActive Polarized lenses help improve visibility.
See more colours with Transitions XTRActive Polarized lenses.
Glare distorts the true colour of objects and makes them hard to distinguish.
Transitions XTRActive Polarized lenses make the world more colourful, so you can see deep blue skies, crystal clear water and the colours of a landscape more clearly.
The key difference is that polarised lenses are designed specifically to block the glare from reflected light, while non-polarised lenses only block intense light.
Transitions XTRActive Polarized lenses not only reduce reflections but also provide a shaper vision, vivid colours and larger view.
Transitions XTRActive Polarized lenses are polarised outdoors in the sun while Transitions XTRActive new generation lenses are darker but do not polarise outdoors.
Transitions XTRActive Polarized lenses filter at least 34% of blue light indoors and up to 90% of blue light outdoors.
Transitions XTRActive Polarized lenses darken in the car so that they reduce the glare while driving. Since the dichroïc dyes for polarisation activate from UV light, which is blocked by car windscreens, Transitions XTRActive Polarized lenses do not polarise in the car. Transitions Drivewear sun lenses are the only polarised sun lenses that adapt to light behind the wheel and outdoors, helping remove glare off the road and car bonnet for a picture-perfect drive. Transitions Drivewear lenses have a fixed polarisation and Transitions XTRActive Polarized lenses have a dynamic polarisation.
These two products are different as well
XTRActive new gen – darkest in car and darkest in hot temps
XTRActive Polarized – you trade off some darkness vs new generation but still better than comparative photochromics
Transitions Style Mirrors encompass Transitions XTRActive technology with a style mirror finish
Primarily an outdoor lens that can be worn indoors
Slight reflective mirror coating indoors on both front and back surface of the lens
Suitable lens base and mirror coating pairings for driving:
Brown lens base – Blue, Silver, Bronze, Gold Pink
Grey lens base – Violet, Green
Colours
Blue, Silver, Bronze, Gold Pink, Violet, Green
This choice of 6 colour mirror finishes creates some useful style options.
Transitions XTRActive was chosen as the base because it is the darkest Transitions lens and activates using both UV & visible light, meaning the mirror effect is more pronounced and dramatic.
Xtractive features
-Darkens behind car windscreen
-Darkest Transitions lens outdoors
-Darkest Transitions lens in hot temperatures
-Filters more blue light than any other Transitions product indoors and outdoors
Transitions Style Mirrors
-Primarily an outdoor lens that can be worn indoors
-Slight reflective mirror coating indoors on both the front and back lens surfaces
-Not suitable for driving at night
-Certain base colour and mirror colour combinations are suitable for day driving
Transitions XTRActive Style Mirrors is a partnership between Transitions Optical (photochromatic component) and Optical Laboratories (mirror coating component). An optical laboratory must be validated by Transitions Optical to supply Transitions Style Mirrors.
When unactivated indoors or at night, Transitions Style Mirrors have a slight reflective mirror appearance.We can show you a Transitions Style Mirrors sample. When unactivated the sample viewed demonstrates how the lens would appear on the face indoors and at night.
Indoors and at night wearers may notice a slight reflective mirror coating on both the front and back surface of the lens.
We can activate a Transitions Style Mirrors sample in a UV demonstrator to darken the lens. We can show that at full tint Transitions Style Mirrors is dark in bright sunlight or you can simply vew sample outside. When the lens sample is at mid-tint, this is the darkness in shady, overcast or partial sunlight condition. With Transitions XTRActive as the base lens technology for Transitions Style Mirrors, the lens darkens in the car.
It is suitable for daylight driving using the specific lens base colour and mirror coating colour combinations .
Transitions Style Mirrors are NOT suitable for night driving.
The reason the style mirrors are only on XTRActive original and soon to be new generation is that the mirror will impact the amount of UV reaching the lens. This means the following
• GEN 8 – activated by UV so will have less activation (not as dark) and the mirror will not be as dramatic
• XTRActive Polarized – The polarization is activated by UV light and as above the mirror will affect the polarisation efficiency
Since 2018, Gradient Nupolar offers cosmetic features to its polarisation.
Even though gradient in style its still 99% efficiency in regard to polarisation.Ask us about Nupolar colours and mirrors.
Transitions Drivewear was developed with ophthalmologists and optometrists using colour theory and combining Transitions photochromic technology and Younger Optic’s Nupolar polarisation.
It is the only sunglass lens that changes to three different colours to suit light conditions and the first photochromic to be activated by both UV rays and visual light.
As conditions rapidly change, so does Transitions Drivewear.
Transitions photochromic technology adjusts the lens colour and darkness of the lens.
NuPolar polarisation removes blinding glare.
Optimises vision outdoors and behind the wheel.
100% UV blockage.
Not suitable for indoors or driving at night.
Crisper, sharper vision outdoors and behind the windscreen.
Increases traffic light recognition and depth perception behind the windscreen.
Glare is removed, colour adjusted and darkness adapted for a more comfortable vision when driving.
Suitable in all outdoor conditions from low light to bright light, on the water and in the snow.
Drivewear lenses have unactivated 35% polarized tint and will go around 90% dark when activated. It will work on a combination of UV radiation and Blue light so it will work in the car.
Drivewear uses blue light as well as UV so it will go darker than the Transitions Signature series and are designed and optimised for use in daylight with sunlight response.
Ideal for wearers engaging in various sports and fitness activities outdoors.
Transitions Drivewear is made up of 3 unique layers:
1. A high transmittance polarising filter
2. A photochromic layer activated by visible light
3. Another photochromic layer activated by UV light
The lens colours are specifically designed to aid in various light environments.
In low light conditions only one lens layer is active.The high transmittance polarised filter is always present. Yellow/Olive Green High contrast colour.
The polarisation eliminates glare.
In the car and in partially sunny conditions, two layers are active.The photochromic layer powered by visible light activates turning the lens a copper colour to enhance depth perception and colour recognition.It provides excellent traffic signal recognition highlighting reds & greens.
In bright sunlight, three lens layers activate.Both the visible and UV light photochromic layers are activated to change to a dark brown lens colour.
The Dark Brown colour allows maximum filtration of excess light so they eye does not get saturated and provides comfortable vision in bright sunlight.
This is the darkest lens state.
We can show you the how the Yellow / Olive Green colour allows shows experience of vision in lower light conditions.
By partially activating the lens ie exposing it to sunlight or the UV light very briefly we can show you the Copper colour.
We can have you look though the lens to experience the darkness and colour in the car and in partially sunny conditions.
The fully activated lens shows the darkness and colour in bright sunlight.This is when the lens is a Dark Brown colour.
Transitions Drivewear appeals to wearers who most value:
Better vision for safe driving
The benefits of polarised sunglasses
Optimised vision when participating in fitness and sporting activities
Driving demands a lot from eyes eg on wet roads, in the rain or with glare reflecting off other surfaces. All while having to decipher road signs and traffic signals.
Blinding glare – bright light reflected off smooth surfaces such as the road, cars or wet surfaces – is frequently cited as the cause of road accidents.
Polarised lenses – such as the polarisation in Transitions Drivewear – are the only lenses to block dangerous blinding glare.
Specific lens colours help traffic signal recognition, legibility of road signs and being able to spot potential hazards when driving.
For each weather condition, a specific lens colour will perform better than others eg when playing golf
A Dark Brown lens is excellent for bright sunlight and helps the wearer see the ball fly through the air.
Copper is good for medium-bright conditions and reading the green.
A Yellow lens is optimal when playing golf in heavy cloud cover or in fog.
Cyclists face different light at different times of the day, and changing light and weather conditions.
A Yellow lens provides increased contrast when cycling early in the morning, in fog, haze and at dusk.
A Copper lens is ideal for partially sunny and shady conditions.
A Dark Brown lens is good for cycling in both partially sunny conditions and in bright sunlight.
The polarisation blocks blinding glare to increase visibility of obstacles.
Fishers face multiple light conditions: low light, bright light and blinding glare off the water. No single lens colour suits all fishing conditions.
A Yellow lens is ideal for fishing at sunrise, dusk, and in foggy or hazy conditions, and on heavily overcast days.
A Copper lens performs best on cloudy days increasing contrast and depth perception for sharp vision when looking into the water.
A Dark Brown lens delivers excellent contrast and depth perception throughout most of the day in both bright and lower light situations.
The polarisation blocks blinding glare from the water surface to help wearers see deeper into the water.
They are not suitable for indoors or driving at night.
NuPolar Infinite is a polarised variable tint prescription sun lens that naturally responds to light, essentially a grey version of the Drivewear Transitions product. Infinite would be ideal for someone who drives and doesn’t like the contrasting colour of normal Drivewear.
The Infinite lens was developed to be a phototochromic polarised lens for those who cosmetically prefer the Gray but Drivewear is still the better sunglass owing to the colours involved to maximise vision
NuPolar is available in 13 colours to fit every lifestyle with excellent polarisation quality.
1 Dark Grey (Grey 3) Most popular sun lens colour and good general-purpose lens
2 Light Grey (Grey 1)A lighter grey lens with 65% tint for less bright conditions.
3 Brown Superior contrast and depth perception with green and red colours especially highlighted
4 Green can enhance vision on both bright days and in overcast conditions.
5 Copper High contrast lens that provides colour definition, high contrast and improves depth perception
6 Gradient Grey / Grey Dark Grey at the top of the lens and Light Grey at the bottom.
7 Gradient Brown / Brown Dark Brown at the top of the lens and Light Brown at the bottom.
8 Gradient Brown / Grey Dark Brown at the top of the lens and Light Grey at the bottom.
9 Silver Mirror Coat Dark Grey polarised lens with Silver mirror coat
10 Blue Mirror Coat Dark Grey polarized lens with Blue mirror coat
11 Gold Mirror Coat Brown polarized lens with Gold mirror coat
12 Infinite Grey Polarised photochromic lens that reacts to changing light. The lens automatically changes from Light Grey (60% tint) to Dark Grey (91% tint)
13 Transitions Drivewear World’s only sunglass lens that changes to three different colours. In low light conditions the lens is Olive to enhance contrast. In the car, and in overcast and partly sunny conditions, the lens is Copper. In bright sunlight the lens is Dark Brown.
In the car, and in overcast and partly sunny conditions, the lens is Copper. In bright sunlight the lens is Dark Brown. Certain colours are more comfortable for your vision than others:
• Grey, Brown, and Green lenses are neutral. They decrease glare and eyestrain without distorting colours.
• Yellow, Amber, and Orange lenses increase contrast, but they may distort colour. They also block out blue light, which some believe may be harmful for the eyes.
• Red or Rose-tinted glasses increase contrast, but they distort colour more strongly than other shades.
TRANSITIONS AND DRIVING
Safe for night driving
XTRActive Polarized
XTRActive New generation
Transitions GEN 8
Not suitable for night driving
XTRActive style mirrors
Transitions Drivewear
Sunglasses are not suitable for night driving
Day driving – Polarized sunglasses are an option
XTRActive Polarized does not Polarize behind a car windscreen
XTRActive Polarized has a slight tint which is usually barely noticeable,as higher indexes and coatings per lower Abbe number can also show some have tint so a 1.67 will be slightly more than a 1.5 however not normally noticeable
Based on the ozone forecast and the incident angle of sunlight determined by latitude, day of the year, and time of day, the strength of UV radiation at ground level is calculated as energy frequency, and wavelength is mathematically related. And just like your skin, your eyes need protection. UV levels and sun protection times are included in our local Bureau weather forecast. Sun protection measures are recommended when the UV Index is three and above, but you still get burnt on cool or cloudy days.
Let us help you choose in single vision and multifocals.
Choose from 7 photochromic colours to match your favourite frames and lifestyle. Grey, Brown, Green, Amethyst, Sapphire, Emerald and Amber.
WHAT TRANSITIONS TYPE IS BEST?
Transitions XTRActive new generation versus Transitions XTRActive Polarised:XAPOLAR ( new transition eight version of Vantage) still only changes a little behind the windscreen and is not fully polarized until fully changed so no good behind the windscreen. With XA2 its darker, so works well to help stop glare in our warmer climate.
Plus it’s reasonably clear indoors and more popular than XAP. Drivewear being the best option for photo chromatic polarised transition sunglasses.
By popularity
1 Signature Gen8. Due to its indoor clarity. It comes in 3 colours and 4 Style colours.
2 Xtractive This is due to its in-car activation helping behind the car’s windscreen. Slight hint of tint indoors.
3 Drivewear. It is a lens designed specifically for driving.
4 Infinite (Younger Optics). They may become more popular than Drivewear owing to colour cosmetics
5 Vantage Variable Polarised lens. It has a slower fade back to clear compared to Signature and Xtractive. Slight hint of tint indoors.
The best advice is that just one pair of glasses cannot usually address all light management needs for your lifestyle.
Some recommendations:
If you are severely light-sensitive, Primary Pair – Transitions XTRActive or Vantage, secondary Pair – Polarised Sunglass Rx or Transitions Drivewear .
If less light-sensitive,suggest Primary Pair – Transitions XTRActive or Signature with Secondary Pair – Polarised or Tinted Sunglass Rx.
If not so light-sensitive (dependent on the specific sensitivity), primary Pair – Any of the Transitions range with Second Pair – Occupational Lens, Polarised or Tinted Sunglass Rx.
Should you feel you are light-sensitive and understand the importance of preventative measures as light can be potentially harmful to the skin and eyes
General recommendation Primary Pair – Transitions Signature (consider Style Colours)
We have a variety of virtual try-on tools.
As the light in your life constantly changes, so should your lenses. The new colour styles come with constantly adjusting technology that has been tested in over 200 lighting conditions across the globe and 1,000 wearer scenarios.
Kids Eye protection has to come from the beginning of life, and they are available in all kinds of frames for all ages. As you get older, your lens naturally absorbs more UV to protect your retina. Kids under five have particularly vulnerable eyes, so they must be protected against UV rays by the correct lens material as they wear their glasses in all their different situations.
They are often used for their automatic light changing photochromic performance in the presence of ultraviolet (UV) radiation, such as when exposed to sunlight, indoors and at night.
Like skin, our eyes need sun protection. Damage is often spotted in eye exams and can contribute to vision problems.
Photochromic performance is influenced by temperature, UV exposure and lens material and can vary among brands. Transitions lenses provide UV400 protection, % reduction of 100 UVA and UVB, helping to preserve your long-term eye health.
TRANSITIONS DRIVEWEAR
Transitions Drivewear polarised incorporate photochromic dyes designed to shift between a lighter and darker density by reacting to changing light conditions as most windscreens have UV absorbers. If you notice glare when you drive, use a specific pair kept in the car for driving. Drivewear has an Olive colour when not activated inside 63% tint or 37% transmission, “changing” to 75% copper colour tint when activated behind a windscreen from bluish wavelengths activating its dyes.
Further darkening occurs outside to 90% due to both UV (unblocked by the windscreen and the blue activation combined.Drivewear is designed primarily to give the best possible vision under all daytime driving conditions. The technology breakthrough on this lens is that it darkens when exposed to UV and visible light.Transition lenses are very popular with people who want one pair of glasses, but dedicated sunglasses or driving glasses have undeniable benefits.
Prescription Transitions Drivewear enhance the driving experience by combining NuPOLAR Polarisation with the Transitions photochromic technology that adjusts the colour and tint of the lenses as light conditions change.
Transitions Drivewear is a sunglass lens that has three distinct colour/darkness states designed for daytime driving. It is always polarised (via polarising film), which means it is not meant to be worn indoors and should not be worn for night driving. It uses both UV-activated and visible-light-activated Transitions photochromic technology, which means it can act even when behind the windshield of a car.
Drivewear transitions are the superior driving lens due to the science of colour theory incorporated into the lens. The colour does prove an issue for some despite vision being sharper and better depth perception, so the cosmetic appeal of the grey INFINITE version has been developed.
The ability to activate behind the windscreen better than all other transitions products and these changing colours over a broad range of driving conditions are the key to its success The benefits of Drivewear over fixed tint sunglasses is they change based the on level of exposure eg in low light conditions a fixed pair of sunglasses are too dark..XTRActive has a 53% activated tint and can go higher in the right conditions but Drivewear is closer to 80%, yet this does not go clear as does the XTRActive.
WHY PROTECT YOUR EYES FROM UV?
Ultraviolet (UV) radiation is invisible energy produced by the sun. The UV radiation that reaches us is made up of UVA and UVB rays which can penetrate the skin and cause permanent damage and eye problems such as cataracts.
• UV A (320 – 400 nm) penetrates deeply into the skin, causing damage to cells, wrinkling, blotchiness
• UVB (290 – 320 nm) penetrates the top layers of the skin/eye causing damage to the cells. UVB is responsible for sunburn – a significant risk factor for skin cancer, especially melanoma.
Ultraviolet light is present even when it’s not sunny, reflecting off glass, water, the ground, and even off the back of your spectacle lens.
UV damage is cumulative and will build up over time so it is a vital eye care issue.
EYE-SUN PROTECTION FACTOR
Often the protection against UV label refers to the blocking UV radiation property of the lens material itself. Up to 50% of UV penetrating the eye is reflected off the back surface, so the E-SPF index considers the degree of UV protection, either by % transmitted through the lens and % reflected off its back surface. The Eye-Sun Protection Factor (E-SPF) is an index showing the overall UV protection provided by a lens. It is an objective rating system developed by Essilor International which can rate any lenses UV transmission and also significantly it’s back surface reflectance reduction. The higher the E-SPF, the better the UV protection. Wearing a lens with an E-SPF value of 25 means that your eye is 25 times better protected than without a lens. (The E-SPF excludes direct eye exposure from around the lenses) so wrap is essential.
READ MORE ON LIGHT PROTECTION
Frequent exposure to UV can lead to the development of cataracts and possibly macular degeneration, which can both impair sight.
TEMPERATURE AND ITS EFFECT ON PHOTOCHROMIC TECHNOLOGY
When the lenses become cold the molecules begin to move slowly. This means that it will take somewhat longer for the lenses to adapt from dark to clear. When the lenses become warm the molecules speed up and become more reactive. Non-ideal light can compromise vision in various ways. Disabling light reduces contrast and impairs vision, and discomforting glare causes annoyance, visual fatigue, eye strain, blurring, headache and oversensitivity to light.Exposure to UV rays can be harmful in both the short and long term.
The light environment can be considered in respect of:
INTENSITY-The most apparent dimension of light impacted by location, season, time of day and weather. The greater the brightness, the greater the discomfort or disability. TEMPORALITY-Flashing or brutal light changes when moving between different light conditions. Can cause discomfort due to retina time adaptation. SOURCE-The smaller the size or the closer the light source, the higher the level of discomfort.SPECTRUM-Light wavelength dependent. UV radiation major cause of numerous eye diseases.
Research shows that UVA and UVB rays may contribute to short-term vision impairment and potentially age-related severe eye problems and disease of the eyes, including cataracts. UV is known to contribute to macular degeneration, the leading cause of blindness in people over 60 years old.
The Importance of Vitamin D and UV means a balance is required between excessive sun exposure, which increases the risk of skin cancer and enough sun exposure to maintain adequate vitamin D levels, which is beneficial for bone development and maintaining musculoskeletal health.
Dietary sources of vitamin D are unlikely to contribute enough of an adult’s vitamin D requirements. Vitamin D levels can decrease when the UV Index is lower.
Transitions lenses Signature series seven lenses filter 1.4 x more harmful blue light than a clear primary lens Indoors. Outdoors, filter more than 8 x more harmful blue light than clear lenses. They are called light intelligent lenses as single vision transitions or more complex designs to enhance contrast in all conditions.
When Transitions lenses are exposed to UV light, trillions of photochromic molecules in the lens begin to change the structure and darken.
They are manufactured under heat to draw the photochromic dye into the lens itself. This patented Chromea7 dye technology allows for a more responsive lens to UV, light, and temperature. After the imbibing is complete, a scratch-resistant coating is applied to the surface of the lens. Sometimes the photochromic technology is on the lens surface depending upon the material. Uniform tint colour is maintained regardless of lens thickness differences caused by lens prescriptions.
Trademark of the transitions logo comes with a love them or exchange them guarantee
Transitions light intelligent lenses technology means transitions light automatically adapt. Responding to the light around you, they intelligently change from clear to dark when you go outdoors and back to clear when you return inside. Ask us how Transitions lenses can make your life hassle-free! Want to make a style statement? Hassle-free, innovative technology. Show off your true colours! See us in-store to choose your colour.
The tint of a sunglasses lens has no effect on UV protection, but does change the amount of light that goes into your eye but the materials are protective. People with blue eyes are more at risk of UV damage. Blue eyes contain less of a protective pigment called melanin, which makes UV exposure more of a risk for people with blue eyes than it is for those with darker eyes.
UV levels are more intense at both higher altitudes and in tropical areas near the equator. The further you live from the equator, the less risk .
LOVE THEM OR EXCHANGE THEM !
‘LOVE THEM OR EXCHANGE THEM’ GUARANTEE
With a satisfaction rating of 96% and a repurchase rate of 95%, you can see why we’re happy to exchange patients’ Transitions lenses if they don’t completely love them!
read more on transitions warranty
If replacing an older lens of a pair,the older already being activated may display some difference however depending on its age with the newer of the pair.
The transitions logo is a registered trademark, and eight generations since 1991 have improved the transitions offering since the original grey photochromic glass of the 1960s. Transitions intelligent technology has been trademarked, and the transitions light features have been tested and verified by users throughout the globe.
How does the exchange process work ?
• Transitions Signature iconic colours or style colours exchange for clear lenses
• Transitions XTRActive exchange for clear lenses
• Transitions XTRActive style mirrors exchange for Transitions XTRActive iconic colours, Transitions Signature iconic or style colours, or clear lenses
• Transitions Vantage with Transitions Signature or clear lenses
The replacement eyewear will be in the same prescription, design, index, coating and frame.
Love Them or Exchange Them guarantee only applies to Transitions everyday lenses and does not include sun lenses like Transitions Drivewear.
WHAT IS THE EXCHANGE PROCESS?
The patient must return their Transitions lenses to us within 30 days from collection.
We then process the Claim & Return Form found at www.transitions-plus.com/eyecareprofessionals
The replacement lenses will take approximately 3 – 7 days.