Information about the lenses in MyOpticOnline
Types of lenses MyOptic
All lenses MyOptic are organic (light and hard brittle) rather than mineral (heavy and fragile)
Organic (lightweight) lenses - made of an organic polymer. The organic lenses are up to 5 times lighter than mineral lenses, which until 10 years ago were the main form spectacle lenses. The organic lenses are shock resistant and hard fragile, making them suitable even for children.
A drawback of the organic glass has lower hardness compared to the mineral, which makes them less resistant to scratching. Thanks to modern technology manufacturers have found a solution to this problem by further laying a solid coating on the organic material to improve scratch resistance.
Typically (white) lenses - clear lenses. Unlike photo chromic and colored lense it is completely transparent without color hue.
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Photo chromic lenses – are also known as photo solar, photo chromatic, heliomatic and others. Photo chromic lenses have the ability to change its color saturation, i.e. to darken. These lenses were originally almost colorless (with a light color shade) and darkening in the same hue when exposed to ultraviolet radiation (UV) - daylight. The degree of darkening depends mostly from the living room light. In more intense (strong) light photo chromic glasses achieve a greater degree of staining and vice versa in low light; the degree of coloring is lower. It is important to know that behind the glass of a modern car because it filters UV rays, the photo chromic lenses will not reach maximum coloring. The degree of darkening depends on the temperature. They will darken most in the clear, cold days and less sunny and hot days. There are different photo chromic technology, which are characterized by varying degrees of maximum and minimum coloration, response time and temperature stability. The minimum residual color in this type of glazing varies from 5 to 15%, and the maximum is around 80-90%. Besides comfort in variable lighting photo chromic correction lenses provide 100% UV protection. The most widespread colors of photo chromic lenses are gray and brown and less green. There are also other types of colors for photo chromic lenses, but they are not as prevalent. |
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Colored (sun) lenses are permanently stained. Unlike photo chromic lenses colored with permanent color and darken and lighten as photo chromic lenses. Possible stains in various colors and varying degrees of color saturation. The degree of saturation is expressed in %. The higher the percentage, the more saturated the color and darker lens is given and vice versa. Colored lenses provide 100% UV protection.
The colored lenses are two main types:
- Monochrome colored lenses - even permanently stained the entire surface with a color tint.
- Overflowing colored lenses - overflowing, permanently stained. The direction of the overflow of the colour is from top to bottom, from darker to lighter shade of the same color. This allows for better comfort in monitoring close objects (phone, book).
In iridescent colored lenses indicate two percent saturation - % saturation of the upper part of the lens (darker shade) and % saturation of the lower part of the lens (lighter shade).
Examples:
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Gray 50% - permanently colored in gray shade, degree of dimming 50% white light transmittance of 50%; |
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Brown 85% - permanently coloring in brown shade, degree of dimming 85%, white light transmittance of 15%; |
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Brown 50% - 15% - overflowing colored glasses in a brown shade with 50% dimming at the top and bottom 15%. The glass has a 50% transmission in the dark part and 85% in the daylight; |
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Gray 85% - 15% - permanently colored glass in the gray shade with 85% obscuration in its upper part and in the lower 15%. Glass has a 15% transmittance in the dark part and 85% in the world. |
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"Fashion" colored lenses - permanently monochrome or overflowing coloured glasses in colorful tones, different from the commonly used colors for coloring organic glass.
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The most popular colors used for coloring lenses are gray, brown, green and G15, also known as gray-green, RayBan (pilot).
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Polarized coloured lenses. These lenses are colored in gray, brown or green tint with a polarizing filter. This filter eliminates glare from highly reflective surfaces and increases sharpness. Thus the tension is removed from the eyes and reducing the discomfort that occurs mostly when driving and outdoor activities. With colored polarized lenses eliminate glare from snow, water, glass, pavement, etc.., Making them suitable for sports, driving, fishing and more. Not recommended the use of polarized lenses when driving a car with the heater on the front window - is possible visual discomfort. Colored polarized lenses that offer are: |
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Coloured lenses with mirror finish. In these lenses on benefit or monochrome colored lenses or overflowing colored lenses, in addition to the outer surface of the lens is applied a mirror finish. They can be combined with different color and degree of dimming lenses.
Mirror finish reflects light. It is suitable for people who spend a long time in strong sunlight. Further reduces reflections and much of the rays that are reflected in the ultraviolet and infrared spectrum (harmful to the eye). Mirror coatings also have a color shade as the most popular are gold, silver and blue.
TYPES OF LENSES MYOPTIC BY optical design
Spherical lenses - standard optical design. The power of the dioptric value is right in the center of the lens. This lens design is essential and must be disclosed and understood.
Aspherical lens - as opposed to spherical lenses, aspherical have the exact effect of the dioptric value not only in the center of the lens, but also around the center towards the periphery. This provides users with better comfort and less eye strain. These lenses have a flat surface, providing more advantages over spherical lenses:
- Clearer peripheral vision;
- Reduced thickness and weight;
- Better aesthetics.
Free-form lenses - lenses with digital processing. The latest generation technology in optical production. It represents a detailed and precise technology for processing the surface of the lens, providing maximum wide field without peripheral distortion of the image. This technology is applied both in progressive lenses for glasses and in a single vision.
Progressive lenses - lenses are combined with a clear vision of all viewing distances: far - driving intermediate - work to monitor and close - reading, working with documents. Progressive lenses have no visible dividing line between the areas for different viewing distances. Provide comfort to users with a need for several pairs of glasses for different viewing distances.
Progressive lenses MyOptic are divided into 3 main groups depending on the used progressive design and technology:
Eco progressive lenses - clear vision of all viewing distances in the central zone of the lens. Due to the specifics of designs and embedded technology in progressive lenses Basic, peripheral zones provide maximum clarity of vision. Suitable option lenses for customers seeking budgetary decision and vision at all distances.
Advanced progressive lenses - Progressive lenses form on base Free-form technology. Provide clear vision at all viewing distances and extended peripheral vision. Compared to Eco, Advanced progressive lenses ensure a smooth transition between zones away to close.
Premium progressive lenses - progressive lenses made by the latest generation of Free-form technology with the latest developments in advanced optical designs. Besides a smooth transition between areas have the most advanced visual areas.
TYPES OF LENSES MYOPTIC BY thickness
An important pattern is that the higher values are prescription lenses for eyeglasses, the thick and heavy they are.
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Example: Lenses with Sph -6.00 DPT
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Example: Lenses with Sph +6.00 DPT
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The refractive index of the glass determines the degree of refraction of light. The greater is the index of refraction of the glass, the more strongly it refracts light. The use of a material with a high refractive index (higher degree of refraction of light) enables the production of a thinner lens with the same dioptric lens relative values of a lower refractive index.
Example:
lenses - / + 6.00 dpt. with refractive index 1.67 (index 1.67) is thin and light compared to lenses - / + 6.00 dpt. having a refractive index 1.50 (index 1.5).
Conventionally the thicknesses of the lenses can be divided into 3 major groups to their index of refraction:
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Lenses with a standard thickness - these are all eyeglass lenses that have one of those basic indices of refraction: 1.50 to 1.57
Aesthetic and thin lenses - these are all glass with an average refractive index: 1.59, 1.60, 1.61. The lenses of this group are up to 25-30% thinner and lighter than lenses in the group
Super thin lenses - these are all lenses with a high refractive index: from 1.67 to 1.74. |
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The lenses of this group are up to 40-45% thinner and lighter than lenses with standard thickness and up to 25-30% thinner and lighter than lenses with an average index of refraction of the group of aesthetic and thin lenses. Using these lenses for correction ensures maximum ease and aesthetics. They are ideal for correction of high prescription values.
TYPES OF COATINGS USED FOR MYOPTIC
Safe is hard coating that is applied on organic lenses to improve their scratch resistance.
MULTi is multi-coated, combining in its structure base layers of antistatic, lipofobic, hydrophobic and hard coatings. Apply on the lenses of glasses to improve the quality of vision. Anti-reflective coating removes surface reflections from the lens surface, reducing them to less than 1%. Thus the lens becomes higher light transmission and the observed image is clear and contrasting. The presence of anti-reflective coating is recommended when working in dimly lit environments, driving, computer work, and daily use of glasses. Anti-reflective coating contributes to the aesthetic appearance of the correction lenses making them more transparent and invisible.
Antistatic layer - prevents picking up static charges on the surface of lenses for eyeglasses and does not allow attracting dust and other particles.
Lipofobic layer - makes the lens surface very smooth and slippery. It is not possible to keep grease and stains fingers. Make the cleaning of the lens easier.
Hydrophobic layer - prevents the water drops from condensation to stay on the surface of the lens. Hydrophobic layer greatly reduces perspiration lens that promotes rapid removal of condensate in sudden temperature changes - entering from cold to warm surroundings lens sweat (insurmountable physical reaction). Due to the hydrophobic layer, the lens sweating disappears quickly.
UNi coverage builds coverage MULTi, and in addition there are more pronounced self-cleaning abilities. Due to the tight and caused a greater concentration of hydrophobic and lipofobic chemical elements, the lens surface is extremely smooth, and does not retain does not attract foreign particles. This coating makes "self-cleaning" lenses as it is more difficult to smudge and almost completely alone remove condensation water.
maXprotect e coating of a new generation of advanced technology and method for applying different anti-reflective layers, preserving their initial structure and characteristics unchanged in intense and prolonged use. Thus, except that the extended life of the coating, it is possible scratch-resistant and very easy to clean. Unlike other coatings maXprotect is very low static power and low coefficient of friction - does not attract or retain dirt and particles, preventing clear vision. The high contact angle of the hydrophobic layer allows for faster flowing fluid from the surface of the lens and to minimize the reaction of condensation (sweating) of the lens, which is formed at a sharp temperature change, namely the entry of cold in a warm room.
maXprotect has excellent transmittance of 99.2% as removed completely annoying reflections, providing users extremely clear, crisp vision, even when driving at night. maXprotect is the maximum combination of all the benefits as maximum hardness for protection from scratches, high-quality anti-reflective coating for vision without glare layers with maximum sustained after prolonged use.
ComputerBlue coverage - with the advancement of modern technologies and requirements for eye protection from radiation on the TFT and LED screens (LED TVs, tablets, phones, etc.), Manufacturers of eyeglass lenses created protection of new generation that 100% protect eyesight of this radiation. Only ComputerBlue coverage filtered blue light. A number of studies show the harmful effects of blue-violet light emitted in increased proportions of the different types of monitors and displays of modern electronic devices such as tablets, laptops, Smartphones, TVs and more. Blue-violet light is the high energy of the visible spectrum and could be one of the causes of eye diseases such as cataracts, macular degeneration and others. Increasingly long use of electronic devices whose screens are the source of this radiation requires the development of specific filters restricting access of blue light to the eye and restoring natural and flow to it.
ComputerBlue coatings are always in addition to the main anti-reflective coatings MULTi, UNi and maXprotect.
