Are There Photochromic Contact Lenses
Yes! Acuvue has produced the first light-intelligent contact lenses: Acuvue Oasys with Transitions. Just like photochromic glasses lenses, these contacts darken automatically when exposed to UV and High Energy Visible light. They go back to a clear state in about 90 seconds when removed from the light source.
Factors Affecting Cost Of Transition Lenses
Unlike frames, lens pricing is very unpredictable throughout the industry. Many optical shops will mark up lens prices differently, sometimes far from the standard local market rates. So, it is up to you to shop around and find the best deals.
Some of the considerations in buying the lens material are whether you need impactresistant lenses or ultra-thin ones. The regular or the standard plastic ones are also included in the choices.
The lens type will also be a major aspect in the decision-making process. Do you need glasses with the lens just for reading? Or something that corrects your eye distance viewing or astigmatism that needs to be corrected.
The total cost you will have to spend also mainly depends on what is indicated on your prescription. Specifications and special instructions based on what your eyes really need will be the basis of the lens grade and other add-ons if necessary.
- Added special features
Coatings are the other options you have to consider if you also need to protect your eyes while working with screens. Will buying that anti-reflective coating worth the shot?
An anti-reflective coating is for reducing reflections from the front of your lenses like glares from headlights, phones, computers, or TV screens. You can also choose to obtain scratch-resistant ones for big outdoor activities.
Pros And Cons Of Transition Lenses
Pros of Transition Lenses
- Darken Quickly: As soon as the wearer ventures out into the sun, the transition lenses darken. With minimal effort, the persons conventional eyeglasses have transformed into a pair of sunglasses in less than 30 seconds. This is a significant benefit for people who wear glasses and have to walk outside and back inside multiple times throughout the day.
- Less Light Sensitivity: UV rays can be particularly hazardous to your eyes if you are exposed to them directly. Transition lenses shield the eyes from these rays and keep them from becoming overly sensitive to light. As a person becomes older, increased exposure to UV rays can cause other problems, such as cataracts. Best of all, the lenses may be customized to your eyes unique requirements.
- Cost Efficient: Prior to the invention of transition lenses, those who were compelled to wear prescription eyeglasses had to acquire a second pair of spectacles to protect them from the sun. Now that customers can purchase a two-in-one alternative, they can save money that they would have spent on a pair of sunglasses to keep their eyes safe.
Cons of Transition Lenses
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Are There Any Contraindications To These Lenses
Dark-colored lenses are not recommended for glaucoma patients. When wearing colored lenses, the pupil dilates and can cause an acute glaucoma attack by closing the irido-corneal angle. If you have glaucoma, ask your doctor for advice if you are bothered by light and want to wear dark glasses. You will be recommended a lower degree of closure .
Do Transition Lenses Wear Out
Yes, after 3 years they will not get as dark as they did when you got them new and they hold a little more tint when you stay indoors. The Gen 8 was made to deliver more durability than its predecessor . Since the product is so new we do not have any experience with gen 8. But we have years of experience with the signature series.
You can see this process if you compare a new transitions lens compared to an old one. What you see is the different tint times and the intensity of the tint varies slightly. They also tend to hold a little brownish yellowish tone if you are not exposed to sunlight.
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How Do Glass Photochromic Lenses Work
Glass photochromic lenses have minute amounts of silver halide crystals distributed inside them. When ultraviolet light hits these chemical compounds, the silver gains an electron and becomes elemental silverthe silver metal with which youre probably familiar. The lenses appear darker as more and more silver molecules appear and absorb visible light.
Certain silver halides can also be used much the same way to make photographic film: exposure to light causes the image to darken and develop. However, unlike photos, glass photochromic lenses are able to revert back to their original clear appearance.
In the absence of ultraviolet light, a second compound thats also embedded within the glass takes the transferred electron back from the silver metal. The process reverses, and the lenses become transparent once more.
Glass photochromic lenses arent as prevalent in the eyewear world these days, but they paved the way for the light-responsive glasses of the future.
How Much Do Transition Lenses Cost
The cost of the transition lenses is influenced by many factors including the coating, the type of the lenses, and the material these are made from. In case you dont have insurance be prepared to pay anywhere between $160 and $370 only for the lenses, without including the frames or the prescription. If you add the frames and the prescription to this cost, it would result in a price of anywhere between $260 and $460, without insurance. If you would have a vision insurance policy then you will have to pay only 10% to 50% of this cost.
If you want to get an idea about how much you would have to pay for Transition lenses then you should add another $65 to $130 to a basic pair of prescription glasses cost.
According to the Transitions official website, the final cost depends on some factors such as the precise lens product you are going to buy, the material the lenses are made of, the type of the lenses, if there is any insurance involved, your prescription and the coating.
For example, on the official website of Eye Buy Direct, you can find Transition lenses at prices starting at $79 and going up to $119. These prices are only for the lenses and do not include the cost of the frames.
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Important Things To Consider
Transition lenses are available in almost all lens materials and models, including high index, bifocal, and progressive lenses. An additional advantage of photochromic lenses is that they protect your eyes from 100% of the suns UVA and UVB rays.
The reaction rate of the material depends on the ambient temperature and the amount of UV. The important factors are the activation time and the time it takes to return to the clear state, the maximum closing being obtained at 73ºF. Therefore, at higher/lower temperatures of this value, the lens will react slower and more incompletely.
Adding an anti-reflective coating to the photochromic lenses improves their performance even more. AR coating allows more light to pass through photochromic lenses for clearer visibility in low light conditions such as driving at night.
How Much Do Transitions Light Intelligent Lenses Glasses Cost
Transitions Light Intelligent Lenses traditionally add hundreds of dollars to the cost of prescription eyeglasses, but at Eyebuydirect, lenses can cost as little as $100. Combine that with our affordable frames, and youve got a great deal! We even carry special frame packages that automatically include Transitions Light Intelligent Lenses for a lower price.
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The Pros And Cons Of Transition Lenses
Transition lenses, or photochromic lenses, are the lenses that darken in the sunlight and lighten in softer light or the dark. 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. But is it really as good as it sounds? Is it worth it?
Spindel Eye Associates knows that these are pressing questions for you, so weve compiled a little information to help you make a well-informed decision.
The benefits of having transitional lenses can seem obvious, but not all of them are apparent. Here are some of the biggest pros to getting a pair of transitional lenses:
So does the bad outweigh the good? Were here to help you find out. These are some of the drawbacks of photochromic lenses:
How to decide
Consulting with your eye care professional about transitional lenses is the best way to decide what will work for you. Finding your optimum eye care choice may involve a lot of details and discussion, but it will lead to you being happier with the outcome. Spindel Eye Associates Overlook Optical know from years of experience that getting to know your needs and visual goals is an essential step to great results.
Test transitional lenses at Spindel Eye Associates.
The Best Of Two Worlds
A special kind of self-tinting lenses is the Vantage version. This combines the darkening of your glasses with polarization. Many readers who appreciate the effect of polarized eyeglass lenses will likely put a smile on their face. This means that you are protected not only from glare through a darker lens, but reflections are additionally absorbed and blinding significantly minimized.
The basic tint of these glasses is hardly noticeable and has a Category 3 glare protection in the case of strong sunlight. This tint is ideal if you are often outside near snow, water, or large reflecting surfaces. Inside the car, these lenses tone up moderately. The more they are tinted the stronger the effect of polarization will be. I really love this tint and I often recommend it to people with a lower prescription.
The reason is this tint is not available in all the materials you could choose with the other transitions tints. So making your progressive lens thinner is not an option and choosing a frame that is rimless is also not going to work with the Transitions Vantage.
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Can You Get Transitions Light Intelligent Lenses Coating On Existing Glasses
No, Transitions Light Intelligent Lenses change color due to the molecular composition of the lens itself, so there is no coating that can transform normal glasses into them. Youd have to have the lenses in the frames swapped out to make your glasses into a pair with Transitions Light Intelligent Lenses. We offer some great deals on photochromic lenses that you might as well keep your daily drivers and add a new pair of Transitions Light Intelligent Lenses glasses to your collection.
How Long Should It Take For Transition Lenses To Change
The speed at which they change varies with the intensity of the sunlight and the temperature around you. Our tests in our lab brought us the following times.
Change time from clear to dark
- Transitions Signature Series
Change time from dark to clear
- Transitions Signature Series
- Transitions Xtraactive
- Transitions Vantage
It was lukewarm approximately 23Â°C during our tests. Most people are shocked when they see those results. But users of Transition lenses are really happy with them. In the tests âfrom dark to clearâ, the majority of the tint went away pretty fast. However, there is a slight tint the lenses hold longer.
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Blue Light Filter Come With Transitions
A blue light filter is automatically accompanied by the tint of Transitions lenses. For situations when the tint is just barely there you have a light blue filter of 20% for the signature variant and 34% for the Transitions Xtractive. Once the lenses are darkened, up to 85%, 88% of the blue light is filtered out. Just compare the four options you can get when speaking about blue light filters.
- Blue cut lenses up to 420nm
- Blue cut lenses that filter more have a stronger tint
- Blue light filters that come with transitions
- Bluelight filters that are on the lenses due to the coating
If you want to choose Transitions in your progressive glasses some colors are only available with the higher-end lenses.
Can You Get Transitions Light Intelligent Lenses With Progressive Lenses
You can get Transitions® lenses with a progressive prescription at Eyebuydirect. Transitions Light Intelligent Lenses seamlessly change from clear to dark depending on the surrounding brightness, and progressive prescriptions provide complete near and distance vision correction. This combination of lens options is perfect for protecting your eyes from UV light while meeting your multifocal needs.
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High Definition Plastic Photochromic Lenses
Best for extra protection. Uniquely designed to protect your eyes from the brightest sun outdoors and harsh artificial light indoors. Available at Rs 3200/-
Here are the following photochromic lenses price in Pakistan:
|Transition In Glass Lens
|Transition In Anti Glasses Plastic
Buying these glasses online is as easy as it sounds. Firstly, you can select a frame of your choice from our website. Then you can choose the type of lenses that you need in your eyeglasses. We offer top-notch quality photochromic lens in Pakistan in various frame designs. You can also upload your prescription to get your eyeglasses in a power option. These pairs are available for delivery in Lahore, Islamabad, Karachi, Multan, Rawalpindi, and all across the country.
Changing between your eyeglasses and sunglasses all day long can seem irritating. Fortunately, you can opt for photochromic glasses that turn dark in the sun and work as shades. Also, they turn clear again every time you step indoors. These eyeglasses are beneficial for those who frequently go outside. In addition, these glasses work for people who need prescription lenses to see clearly. Overall, these glasses are an optimum choice to wear in all seasons.
What Are Other Names For Photochromic Lenses
Photochromic lenses go by many other names, including light-adaptive lenses, variable tint lenses, light intelligent lenses, and even reactolights. When were not using their scientific name, we prefer the term light-responsive lenses, because it neatly encapsulates exactly what these lenses do: they respond automatically to UV light.
If you cant remember these terms, though, lens that changes in the sun usually gets the point across.
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How Do Photochromic Lenses Work
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, photochromic eyeglasses will not themselves darken. Very recent advancements in photochromic technology allow some brands of photochromic lenses to activate in both ultraviolet and visible light, so these eyeglasses will turn darker even in a car that has a UV-filtering windshield.
Photochromic lenses work via a chemical reaction in the lenses. They are made with trace amounts of silver chloride. When silver chloride is exposed to ultraviolet light, the silver molecules gain an electron from the chloride to become silver metal. This gives the lens the ability to absorb visible light, turning darker in the process.
This method is used in all forms of eyewear that use photochromic lenses, such as high-index lenses, progressive lenses, and bifocals.
Are Transition Lenses As Good As Sunglasses
They can be as dark as sunglasses . But the intensity of the tint varies depending on how much UV light is around you. If you are highly sensitive to light it might be better to get normal dark sunglasses. However, if you want the convenience of not changing your glasses transitions are your best choice.
When you are in your car UV light is probably blocked by your windshield. That is why transitions will not get as dark inside your car as they do outside. This also affects the polarisation in the vantage line. The polarisation starts to kick in at 50% of the tint. In the car, you will get approximately 50%. This means the polarization effect will be moderate compared to when they fully darkened up when you step outside.
One Set Of Glasses Vs Two Or More
One potential advantage with transition lenses is that you wont require prescription sunglasses. That saves the cost of an additional set of lenses and the frames. It also, of course, provides the advantage of not searching for one pair or the other when theyre needed. Instead, your eyeglasses make the transition automatically.
Transitions Gen 8 Lenses
The GEN 8 Version is available in the same colors as the tint before. The difference from its predecessor is the faster reaction. The new lenses are up to 3 minutes faster in going from dark to clear. Now the lenses are even clearer if they are not exposed to sunlight and darker outdoors. In addition to that, some customers were concerned by the longevity of the lenses which is also improved.
They stay responsive for a longer period of time. The lab tests over two years showed more consistency in the performance of changing dark to clear and vice versa. They do not age as fast as the signature series.
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