1.50 Standard Index Lens

Polarized lenses are used in sunglasses to reduce glare from reflective surfaces such as for example water or snow or the hood of a car. They make this happen feat through a process called polarization. If you’re keen on fishing, skiing, riding and other outdoor activities, I think you need it. These lenses are excellent for people with moderate-to-high prescriptions. And are recommended of prescriptions of SPH (+/-6.0 to +/-9.0), CYL (+/-3.25 to +/-4.0) for the best results. It is recommended to utilize SPH (+/-6.0 to +/-9.0) and CYL (+/-3.25 to +/-4.0) prescriptions for best results.

Polycarbonate Lenses are perfect for rimless frames or anyone using their glasses for sporting activities. Designed for high prescriptions – these lenses are the thinnest & lightest plastic lenses available today! Elite Super Thin lenses are constructed of an aspheric design and

Why Select A High

Common eyeglasses lenses can be classified into glass lens, resin lens, special lens and space lens, and the 1.50, 1.56, 1.60, 1.67 and 1.74 labeled on lenses are their refractive indexes. There are various types of lens materials and they’re used depending on degree of correction needed. Included in these are 1.56 Standard Index, 1.57 Mid-index, 1.59 Thin & Light Index, 1.59 Polycarbonate, 1.61 High Index, 1.67 High Index, and 1.74 High Index. With one of these lenses, individuals can choose lens coatings, such as scratch-resistant or anti-reflective coating, to make up for just about any possible color differences or add further protection. The initial polycarbonate material makes lenses stronger and impact-resistant. Prescription glasses with a higher lens index could have thinner lenses.
Lens materials that have a refractive index higher than standard CR39 plastic (1.50) and regular glass (1.52) are considered high-index lenses. High-index lenses are specially helpful for those who have a strong eyeglass prescription for nearsightedness, farsightedness or astigmatism.

• Regular lenses which contain a solid optical prescription usually require a thicker and heavier lens so that you can bend light more effectively and correct the high refractive error.
• These lenses are recommended for prescriptions of SPH (above ±8.0, CYL above ±3.0).
• If you’re short sighted you’re likely to require glasses for distance, whereas a long sighted person would require glasses for reading.
• After reflecting on similar situations, the dispenser explained to the patient that in order to get the lenses in their best form, another frame would have to be selected.

The 1.67 High-Index lenses are 20% thinner than Polycarbonate and 30% thinner than Standard with the same prescription. Progressive lenses offer multiple focal corrections in one lens, providing a seamless transition from distance correction on top to reading correction on bottom. This means you can view all of your field of vision without switching between multiple pairs of glasses. All bifocal eyeglasses at our website are created from plastic index 1.56 also it comes automatically with anti-glare, anti-scratch and UV protection coatings. In addition, it features high thermal resistance and is highly appropriate for coating materials, making the coatings more resistant to cracking and peeling, even under challenging conditions. The lenses maintain viewing clarity for eyeglass wearers even after extended use.
Light tints are employed primarily for fashion purposes to enhance a wearer’s looks. Darker tints permit the wearer to use the lenses as sunglasses. Photochromic lenses include anti-reflective, anti-scratch, and 100% UV protection coatings. The high impact resistance and static load resistance improve safety for users. The lens material meets the criteria of the united states FDA’s drop ball test. This lens material makes it possible to produce ultra-thin lenses of the highest refractive index. Additionally, this Do Green™ product is made using plant-derived materials.

59 Polycarbonate

Polycarbonate lenses have an increased index of refraction (1.586) than CR-39 plastic (1.498) and so are therefore thinner within an equal lens prescription. With a higher index , light is bent better, so that it requires less material to achieve the eyeglass prescription making the lenses much lighter. Another significant benefit of these lenses is that they are impact resistant. It’s important to recognize that impact resistant does not mean shatterproof.

The most frequent problem with Polycarbonate is the high amount of chromatic aberrations . Polycarbonate lenses are up to 15% thinner than Standard 1.50 Index lenses. These lenses can be not even half the weight of regular glass lenses and 25% to 30% lighter than regular plastic lenses. 1.67 index lenses are appropriate for all varieties of frames, and are ideal for strong prescriptions. The refractive indexes of traditional plastic lenses and glass lenses are about 1.5 and 1.52 respectively. Any lens material with a refractive index higher than these numbers are considered a highly index lens material.

57 Index Lens

When the lenses are out of your sunlight, they become clear again. Single-vision lenses offer one correction throughout the entire lens . The heat-resistant MR-10™ lens withstands an array of working temperatures and will be offering added safety for use under challenging temperature conditions.
This lens index is a fantastic option for those with a super prescription. Because of the way basic color tint and photochromic are applied, they cannot be applied to exactly the same lens and you must choose one or the other.