Photochromic lenses for eyeglasses with diopters. What is it, prices, reviews, where to buy

Photochromic lenses are often used for glasses with diopters not only for beauty, so in order to protect from sunlight. Glasses having such characteristics able to ensure the clarity of vision, as well as simultaneous eye protection from UV rays.

Photochromic coating is quick to respond to sunlight by darkening lens that helps maintain health. A contemporary design execution makes this accessory beautiful element image.

What are photochromic lenses for eyeglasses with diopters

Photochromic lenses, as well as any other, for glasses with diopters have optical characteristics, and therefore bring or remove an object. This is measured in diopters and is directly proportional to the refractive index. The lenses have the ability to protect the eyes from ultraviolet radiation is its ability to refract light, which is divided into categories.

Category index lenses:	The range of the index
normal	1,48-1,54
medium	1,54-1,64
high	1,64-1,74
ultra	over 1.74

The thinner the lens, the better it protects the eyes from UV rays. For complete protection, the lens is further coated photochromes.

Photochromic coating possesses unique properties of the lens to change the level of light transmission depending on the ambient light at a certain time.

By changing the structure of the individual photochromic pigments under the action of UV-photochromic glasses with coating quickly moving from a transparent state with high light transmission to a sharp decline in light transmission. Changing the lens color is proportional to illumination.

Color lenses in these glasses the most obscured to 85-93%, and the eye is completely protected against UV light. The lenses darken within 5-60 seconds indoors and vice versa become transparent (with a permissible initial dimming to 8-11%) in the normal state. For such ability with the photochromic coating glasses are called "chameleon".

What are photochromic lenses for eyeglasses with diopters

Photochromic lenses for eyeglasses with diopters available in every frame and with different characteristics, their principle of operation does not depend on weather conditions. These glasses are considered to be essential for people with vision problems. UV rays are most harmful to the eyes, because the ultraviolet light in them gets easier.

Permanent harmful effects of sun impairs the ability to see, to provoke various diseases of the eye. Therefore, 1 means the treatment or prevention of diseases considered to be of sun protection.

Photochromic vision glasses recommended in cases of:

• thinning at the retina of the eye;
• availability problems with visual acuity;
• prophylactically to prevent the development of cataracts;
• protection from the ultraviolet spectrum.

Additionally coated with a photochromic sunglasses can remove glare of snow (in winter in the mountains), as well as significantly improve visibility while driving.

Types of photochromic eyeglass lenses with diopters

All manufacturers make different types of lenses with diopters.

Photochromic spectacle lenses according to the type of material can be:

• glass (classical glass lenses with diopters do not accumulate static electricity, and have a long service life);
• plastic (such lenses have little weight, resistant to shocks and netravmoopasny, the use of plastic to create the lens allows you to make it thinner and lighter).

The thickness of the lens is different and affects the refractive index of light points:

1. The thinner the lens, the better it protects the eyes and has a higher refractive index.
2. Thick lenses allow for protection from the sun for people with impaired vision only if the photochromic coating.

According to the type of design lenses with diopters can be:

1. Bifocal (they combine the two zones, upper and lower, for use in myopia and presbyopia simultaneously);
2. Spherical (have the shape of a sphere and are considered classics);
3. Aspherical (1 or 2 of these lenses are non-spherical surface shape. Due to this structure, the lens does not distort the image and have a smaller thickness);
4. Progressive (such lenses have three zones: the upper - to give, lower - for near distance and average - neutral. It is these glasses provide the optimum combination, do not give eyes to strain and allow you to see at all distances).

Photochromic lenses for eyeglasses with diopters have a different shade of color. Most often, they are available in the classic range from brown to dark gray. Brown shade better absorbs glare and has a high-definition image, so it is recommended for drivers and office workers.

Gray shade to protect from direct sunlight and is suitable for people who work outside the office. However, some brands offer photochromic sunglasses with a touch of blue, green, purple and yellow.

Photochromic lenses vary in maximum dimming degree (60 to 93%):

1. Average degree of dimming is considered to be 50-60%;
2. The high degree of dimming ranges 60-85%;
3. Ultrahigh degree of dimming spectacles have from 85 to 93%.

The initial degree of darkening of photochromic lenses is:

• transparent, 0% dimming;
• low dimming to 5%;
• tinted with dimming 8-11%.

A method to manufacture photochromic glasses coated affect their durability, quality and differentiates the lens:

• simple, in which the photochromic lenses are covered in the final stage (such a layer is deleted and quickly deteriorates);
• manufactured imbaybingom when photochromic spread in a thin layer of the upper lens that extends the life of glasses;
• manufactured with transbondinga system, where it is assumed administering photochromic pigments in the mass of the lens itself (this gives an even and optimal material distribution durability points).

Opinions of physicians and patients about photochromic lenses for eyeglasses with diopters

Opinions of doctors explicitly emphasize greatly benefit from the use of photochromic lenses with diopters in treatment of diseases related to eyes and vision. This coating greatly reduces the load on the visual apparatus, since the eye does not need to constantly adjust to the new level of lighting.

Some doctors point out that the photochromic coating some points are not always equally protects the eyes from UV rays outdoors and indoors. So in the car photochromic vision glasses designed to protect from direct sunlight, not enough to darken.

Therefore, doctors recommend that adults patients have 2 pairs of glasses for optimum protection of the eyes from the harmful UV rays. Experts emphasize that the photochromic coating on the glasses also recommended that children in the spring and summer because they spend indoors as much time as the great outdoors.

Patients reported wearing comfort "smart" glasses, because they do not need to change to other points, and carry a replacement. Individual experts nevertheless note the importance of the quality and uniformity of the photochromic coating on the lenses, because only the correct application of tangible results when using these points.

But all doctors agree that if you have serious problems with his vision for the use of photochromic coatings lens can provide sufficient protection for the eyes and will help to improve the condition of his or preservation. After photochromic sunglasses eliminate easily any deviations in visual function and improve picture clarity indoors and outside.

Rating photochromic eyeglass lenses with diopters

Photochromic lenses for eyeglasses with diopters produced by Russian manufacturers, the quality of which is kept at a high level, as well as foreign. The leading place in the ranking points from the photochromic coating occupy the following manufacturers:

Cantilen Clear Vision

1. Have-dirt coating and protection from scratches.
2. Protect from the action of electromagnetic waves.
3. The range of -8 diopters to +6.
4. Available in brown and gray color.
5. Have an affordable price, the average price of 1500 rubles.
6. Russian production.
7. Disadvantage: not suitable for driving.

Purchase Cantilen Clear Vision glasses can be in any optical stores.

Rodenstock Perfalit Colormatic

1. In the normal state is transparent, the maximum darkening of 85%.
2. the refractive index of 1.54.
3. Diopter range from -6 to +4.
4. Made in Germany.
5. Have an additional coating to protect from dirt and mechanical influences.
6. Standard price starts from 3000 rubles.
7. The disadvantages include the thick glasses lens.

Buy Rodenstock Perfalit Colormatic glasses is possible on site representatives of the brand, as well as in some shops of optics.

Hoya Drivewear Hi-Vision Aqua

1. Designed specifically for drivers.
2. Photochromic coating reacts to lighting for 3-5 seconds.
3. The lenses have a pleasant shade from yellow-green to deep brown.
4. Diopter range: -9 - 7.5.
5. Points can be dirt-protecting coatings or additional protection from scratches.
6. Produced in Japan and have a long life.
7. Price on average: 10,000 rubles.
8. Disadvantages: not suitable for driving at night.

Points of the brand can only be purchased on the Internet on the official website of the manufacturer.

Essilor 1,59 Airwear Transitions Signature 7 Polycarbonate Crizal Aize + UV

1. A thin and high-impact polycarbonate lens.
2. Perfectly smooth surface of the lens easier to clean from dirt.
3. Diopter range: -12 to +7.5.
4. The maximum degree of dimming to 88%.
5. Suitable for drivers in the dark.
6. Producer - France.
7. The average value of RUB 5,000 points.
8. Flaw are not dirt and shock-proof coating.

Buy generic glasses from Essilor possible in specialized stores and online distributors on the Internet.

Top Vision ASP 1,67 Transitions Xtractive HMC

1. The finest lens darkens to 90%.
2. darkening speed is very high and does not depend on temperature conditions.
3. Range from -10 diopters to 8.75.
4. The multilayer coating repels dirt and water removes the flare and does not accumulate static electricity.
5. Produced in Russia and have an average price of 9000 rubles.
6. Disadvantage: initial 11% dimming.

Buy Points Top Vision ASP 1,67 Transitions Xtractive HMC may be the manufacturer's website, or in some salons optics.

EyeDrive Transitions XTRActive

1. Designed specifically for drivers.
2. The degree of dimming to 90% is shown in seconds.
3. Available in gray, brown and green.
4. The range of -8 diopters to +6.
5. Manufactured in Germany.
6. The average price of 4000 rubles points.

Buy this brand glasses are available in any store optics, as well as on the official website of the manufacturer.

BBGR UNOR 15 Transitions XTRActive

1. Designed for motorists and are obscured in the passenger compartment by 50%.
2. lens tint can be gray, brown and green.
3. Dimming to 93%.
4. Diopter range from 4 to -8.
5. Suitable for constant wear.
6. Manufactured in France and are an average of 4,500 rubles.
7. Disadvantages: lenses are produced only as a single vision.

Buy sunglasses this brand in Internet services, as well as some salons optics.

seiko Sensity

1. Fully protect against ultraviolet and eliminate glare.
2. Enhance the picture contrast and color perception.
3. Available in 3 colors: brown, gray and greenish-gray.
4. Allow to focus on the periphery.
5. diopter range is from -6 to +4.
6. Resistant to mechanical damage.
7. Japan's production.
8. The average price of 10,000 rubles.
9. Disadvantages: blacked out for 30 seconds, 60 seconds clarified.

Seiko Sensity lenses can be purchased through the official website of the company where the system will prompt the nearest authorized location of the doctor and the interior optics.

Rupp und Hubrach Nanoperl S

1. Have a 3-layer coating: the seal protecting against impacts and dirt.
2. Aspherical lens design provides visual comfort.
3. A spectacle frame has a modern design.
4. Manufactured in Germany, and the average cost 6,000 rubles.
5. Diopter range from +6 to -4.
6. Disadvantages: only available in shades of green.

Can be purchased on the official website of the manufacturer or through representatives on the Internet.

Nikon Transitions Signature

• Available in 7 colors:

1. brown.
2. Gray.
3. green-gray.
4. emerald.
5. blue.
6. Violet.
7. yellow-brown.

• Blacked out under any temperature.
• Easy and high-precision lens is protected from dirt.
• Suitable for everyday wear.
• Available in a wide range of diopters (-7 to + 8).
• Manufactured in Japan and cost an average of 8,000 rubles.

Find photochromic Nikon Transitions sunglasses can be in any salon optics or on the official website of the company.

Photochromic lenses for spectacles have long established themselves as a universal means of protection from UV rays, so produced by all the major manufacturers of high-quality lenses diopters.

There are entire line of photochromic glasses with additional features (for drivers, athletes), created with the aim of a more individual choice of optics. Photochromic lenses with vision correction experts select only personally, which guarantees full protection of the health and high visual comfort every day.

Registration of the article: Mila Friedan

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