What material are anti-fog lenses?

Anti-Fog Lenses | Anti-Fog Glasses | Anti-Mist Glasses Well, that’s a fair question, the internet is awash with products, hacks and tips to stop your glasses from misting up, so what makes ours your best choice? Well, we’ve done our homework and have found that all the “solutions” out there require too much work and effort, and that none of them seem that effective anyway.

Sprays, wipes and cleaning cloths are all temporary, unless you are constantly using or applying them then they simply stop working. They have a window of time when they will be effective, and if you don’t have your sprays or wipes handy then the result is foggy glasses and this will often happen at the most inconvenient time.

All the alternatives are basically activators and this makes them another thing you have to remember to do, just another inconvenience you don’t have time for. Lensologys Anti-Fog fix is unique because it’s permanent straight out of the packet, because it’s part of the lens material itself it therefore works all day and night without you having to do anything to keep it doing its job, doesn’t that’s sound nice, simple and easy? Lensology provide an Anti-Fog solution with both Single Vision and Varifocal lenses.

• Our Anti-Fog lenses are made from a Polycarbonate material, this means that they are not only slim and light but are also impact resistant.
• They are also fully UV protected and have a hard coat layer that protects against accidental scratching.
• The Anti-Fog technology applied to our range of lenses provides permanent protection against fogging and misting, no special sprays, wipes or activating cloths are necessary.

The only thing you need to do to keep your Anti-Fog glasses performing at their peak is to keep your lenses clean, just like you would any other type of lens. At this point our Anti-Fog lenses are only available as clear with scratch resistance, this means that the technology cannot be applied to Anti-Reflection, Tinted/Sunglass or Transitions lens types. No its not, our prices before deals or discounts for Single Vision are just £72.00 per pair and our Freeform Varifocals are just £174.00 per pair. When you compare this with the cost of standard lenses that you then need to combine with sprays, cloths or wipes that give inferior results, then our Anti-Fog lenses represent very good value for money. We are so confident that you are going to love our Anti-Fog lenses that we are happy to make you an offer. If before 30 days you decide that our Anti-Fog lenses are not working as promised, then you can return them for either an alternative lens type or a full refund. Looking to keep your existing frames and reglaze your glasses with new Anti-Fog lenses? Simply request a free reglazing pack! Fill out our simple form online and we will leap into action, sending you a sturdy box to put your frames in. Postage is prepaid and there is no obligation. Sit tight, you will receive your pack in just a couple of days. Place your frames in the box and pop it into any Royal Mail post-box.

No journeys into town, no stamps, no fuss. To save time you can add a copy of your prescription or we’d be happy to contact you for it. There is still nothing to pay. Our experts will prepare a quote based on your requirements and email it to you. Once you’re happy, sit back and relax whilst we fit your lenses with speed and care before returning them via our secure courier service.

: Anti-Fog Lenses | Anti-Fog Glasses | Anti-Mist Glasses

How do you make plastic lenses not fog?

5. Layer on baby shampoo – Another effective bathroom product, baby shampoo is a favorite among triathletes who struggle with foggy goggles. You can use baby shampoo like you would bar soap and wash, rinse, then wear, or you can leave an even layer of soap on your lenses overnight for a more effective result.

What ingredients are in anti-fog spray?

WO2017199158A1 – Anti-fog formulation – Google Patents

• “ANTI-FOG FORMULATION”
• DESCRIPTION
• TECHNICAL FIELD OF THE INVENTION
• The object of the present invention is a cosmetic formulation, preferably in a spray form, and the use thereof to prevent fogging of eyeglasses, swim goggles, snorkeling and scuba diving masks and ski goggles.
• STATE OF THE ART
• The fogging of devices for aiding vision is a problem of deep concern especially during the performance of sports activities such as swimming, snorkeling, scuba diving and skiing.
• The fogging of swim goggles, snorkeling and scuba diving masks and ski goggles is due to the difference in temperature between the inner lenses, which are in contact with the person’s body, and the outer lenses, which are in contact with the water or the atmosphere.
• The water droplets present in one’s breath tend to condense on the inner lenses, which are warmer, thus leading to the formation of an opaque patina that is quite troublesome for swimmers and for skiers who are forced to interrupt their workout continuously to regain correct external vision.
• To overcome this drawback, essentially two solutions have been devised: 1 ) the use of anti-fog sprays that are sprayed inside the goggles or mask before beginning a sports activity; 2) the use of goggles/masks equipped with a layer of anti-fog plastic.
• Several types of anti-fog sprays are available on the market, but they all share the same drawback: they work very well soon after application, but tend to lose their effectiveness shortly after beginning a workout.
• Goggles and masks equipped with an anti-fog layer are very effective; however, they have the drawback of not lasting very long, with the result that the anti-fog layer needs to be repaired or an anti-fog spray must be used.

The aim of the present invention is to overcome the drawbacks affecting the swimming and skiing fields by providing an anti-fog formulation that has proved to be far more effective than the sprays currently available on the market. The formulation of the invention, for example, can keep a pair of swim goggles free from condensation for a workout of about 4,000 meters, without the need to re-apply it during the session.

1. SUMMARY OF THE INVENTION
2. The present invention concerns a cosmetic formulation comprising a mixture of ionic, non-ionic and amphoteric surfactants and hyaluronic acid or a salt thereof.
3. In addition to these main ingredients, the formulation also contains cosmetic excipients, such as acidifying, chelating, conditioning, thickening, preservative and antiseptic agents.
4. The formulation is preferably in the form of an aqueous solution that can be dispensed by means of a spray applicator.
5. The solution is used as an anti-fog solution for swim goggles, snorkeling and scuba diving masks and ski goggles.
6. DETAILED DESCRIPTION OF THE INVENTION The main ingredients of the cosmetic formulation are anionic, non-ionic and amphoteric surfactants and hyaluronic acid or salts thereof.

For example, the anionic surfactants are alkyl sulfonates such as sodium laureth sulfate. The alkyl sulfonates are included in the formulation in an amount ranging from 0.1 to 0.2% by weight. The preferred non-ionic surfactants are alkyl esters of saccharose, for example coco-glucoside.

The alkyl esters of saccharose are present in the formulation in an amount ranging between 0.5% and 1 % by weight. For example, the coco-glucoside is marketed by BASF and has the following preferred composition: C8-16 alkyl polyglucoside, C8-10 alkyl polyglucoside, and C10-16 alkyl polyglucoside. Other non-ionic surfactants with a high emulsifying power are the esters of fatty acids, preferably derived from a reaction between a fatty acid and an alcohol, such as polyethylene glycol (PEG).

Among the non-ionic surfactants derived from fatty acids, PEG-80 sorbitan laurate and PEG- 150 distearate are preferred. The esters of fatty acids are included in the formulation in an amount ranging from 0.05% to 0.15% by weight. In addition to being surfactants, these esters also show emulsifying properties.

1. Other non-ionic surfactants used in the formulation are polysorbate 20 for example.
2. The latter is present in the formulation in an amount ranging from 0.05% to 0.1 % by weight.
3. The amphoteric surfactants are for example derivatives of coconut fatty acids, such as sodium cocoamphoacetate, sodium cocoamphopropionate, disodium cocoamphodiacetate and disodium cocoamphodipropionate.

One or more of these surfactants are present in the formulation in an amount ranging between 0.1 % and 0.9% by weight. Hyaluronic acid can be used in the form of a salt such as sodium hyaluronate. This ingredient is present in the formulation in an amount ranging from 0.002 to 0.01 % by weight.

In addition to surfactants and hyaluronic acid, the aqueous solution can also comprise other ingredients, such as preservatives (e.g. sodium benzoate and/or potassium sorbate). The preservatives are present in the formulation in an amount ranging from 0.01 to 0.05% by weight. Other ingredients that may be present in the formulation are film-forming agents (such as polyquaternium-10 and/or polyquaternium-7).

The film- forming agent is present in the formulation in an amount ranging from 0.01 to 0.02% by weight. Other ingredients that may be present are chelating agents, such as EDTA and/or tetrasodium glutamate diacetate. The chelating agent is present in the formulation in an amount ranging from 0.01 to 0.02% by weight.

Other ingredients that may be present are acidifying agents (e.g. citric acid), preferably in an amount ranging from 0.05 to 0.1 % by weight, and sodium chloride as a thickener, preferably in an amount ranging from 0.01 to 0.09% by weight. Optionally, antiseptic agents, for example boric acid and/or sodium borate, may be present in the formulation.

The amount of antiseptic agents ranges between 0.002 and 0.008% by weight. The formulation contains demineralized water in a sufficient quantity up to a total of 100 ml. In a preferred embodiment, the formulation of the invention is an aqueous solution containing the following ingredients: COCO GLUCOSIDE, preferably 0.5 to 1 %, DISODIUM COCOAMPHODIACETATE, preferably 0.1 to 0.9%, SODIUM LAURETH SULFATE, preferably 0.1 to 0.2%, PEG- 150 DISTEARATE, preferably 0.05 to 0.15%, POLYSORBATE 20 0.01 %, preferably 0.05 to 0.15%, CITRIC ACID, preferably 0.05 to 0.15%, SODIUM CHLORIDE 0.06%, preferably 0.01 to 0.09%, SODIUM BENZOATE, preferably 0.01 to 0.05%, POTASSIUM SORBATE 0.02%, preferably 0.01 to 0.05%, TETRASODIUM GLUTAMATE DIACETATE, preferably 0.01 to 0.02%, POLYQUATERNUM-7, preferably 0.01 to 0.02%, SODIUM HYALURONATE, preferably 0.002 to 0.01 %, BORIC ACID 0.005%, preferably 0.002 to 0.008%, SODIUM BORATE 0.005%, preferably 0.002 to 0.008% and DEMINERALIZED WATER in a sufficient quantity up to 100 ml.

• The solution thus obtained is vigorously stirred, sodium chloride is added and subsequently the acidifier is added to stabilize the pH.
• The solution is kept under stirring for a time ranging between 20 and 60 minutes, then it is left to rest for several hours prior to use.
• The formulation of the invention has proved to be particularly effective in keeping swim goggles clear (that is, free of the layer of condensed water droplets) for a surprisingly long time, that is, up to about 4,000 metres in a workout/training session in a pool (about 1 -2 h), without having to re-apply the formulation.
• After this period of time, the formation of the layer of patina is observed and it is thus necessary to repeat the application.
• The anti-fog formulations known in the field lose their effectiveness in a remarkably shorter time and force the swimmer to interrupt a workout/training session in order to re-apply the solution a number of times.
• The solution of the invention has proved to be particularly effective also in protecting snorkeling and scuba diving masks and swim goggles from fogging even in salt water.
• The same effectiveness has also been observed for ski goggles.

The solution of the invention is applied on the goggles by means of a spray applicator, preferably a 30-ml applicator. One proceeds by spraying a suitable amount of solution on the inner lenses of the goggles. Then any excess solution is eliminated by rinsing the goggles in the pool (or sea) water, or by simply overturning the goggles so as to let the excess liquid drain out.

1. An object of the invention is the use of the formulation according to the invention as an anti-fog solution for swim goggles, snorkeling and scuba diving masks and ski masks.
2. FORMULATION EXAMPLE
3. An example of the formulation of the invention: aqueous solution 100 ml.
4. COCO GLUCOSIDE 0.6%
5. DISODIUM COCOAMPHODIACETATE 0.4%
6. SODIUM LAURETH SULFATE 0.1 %
7. PEG-150 DISTEARATE 0.1 %
8. POLYSORBATE 20 0.01 %
9. CITRIC ACID 0.07%
10. SODIUM CHLORIDE 0.06%
11. SODIUM BENZOATE 0.03%
12. POTASSIUM SORBATE 0.02%
13. TETRASODIUM GLUTAMATE DIACETATE 0.01 %
14. POLYQUATERNIUM-7 0.01 %
15. SODIUM HYALURONATE 0.005%
16. BORIC ACID 0.005%
17. SODIUM BORATE 0.005%

DEMINERALIZED WATER q.s. up to 100 ml The percentages are percentages by weight. METHOD OF PREPARATION Demineralized water is introduced into the primary batch. In another container, boric acid is dissolved by heating. Under stirring, the preservatives, the disinfectants and the various surfactants are introduced into the primary batch first.

• Then, the emulsifying agent, the thickener, the chelator and sodium hyaluronate are added.
• Under vigorous stirring, sodium chloride is introduced and subsequently the acidifier is introduced to stabilize the pH.
• The solution is kept under stirring for 30 minutes, then it is left to rest for several hours prior to use.
• The formulation thus obtained is applied in a spray form onto the inner lenses of the swim goggles; the goggles are rinsed in the pool water and then worn for a workout of up to 4,000 metres.

: WO2017199158A1 – Anti-fog formulation – Google Patents

Do anti-fog cloths work on glasses?

Do Anti-Fog Wipes Work for Glasses? – Anti-fog wipes were designed to be used on your specs. If you are in a situation that will cause your glasses to fog, you can quickly treat them with an anti-fog wipe to prevent it from happening. The problem with anti-fog wipes is that they are a fast, quick-fix solution for a short-term problem.

How long does anti-fog spray last on goggles?

How Long Does Anti Fog Last? – For the spray, it only lasts around five days. That isn’t anything to turn one’s nose up at, but there is a better alternative. High-quality lens enhancements can often last anywhere between 1 to 2 years, but there are many cases of them lasting significantly longer.

However, this is determinant upon how well you care for your lenses. Excessive cleaning or often leaving them face down could be enough to damage your lenses to the point of no longer providing a complete cover of anti fog. That being said, here at RX-Able.com, we provide an anti fog solution in replacement lenses that does not wear off, is scratch and impact-resistant, and provides 100% UV protection to ensure that you no longer have to worry.

The best way to ensure that they stay fully anti fog is to ensure that you look after them consistently, as harsh bumps can still take a serious toll. If you are interested and maybe you want to check out some of the reviews. It is a service that is often included in our sales, so there is a real chance that you can have all your anti fog needs taken care of for an absolute bargain.

Jack Gloop