Where can i get 1.74 lenses

As a result, they may benefit people with stronger prescriptions who might otherwise have heavier, thicker lenses. An estimated million people in the United States have a refractive error. The four most common types of refractive error are:. People with refractive errors often require stronger prescriptions.

They may, therefore, benefit from using high index lenses. In this article, learn more about high index lenses, what to consider when choosing them, and where to purchase them.

Glasses and contact lens prescriptions contain different numbers and abbreviations. When looking at a prescription , a person will likely notice the following information:. The plus sign indicates that a person is farsighted, and the minus sign indicates that a person is nearsighted. The eye is usually spherical, but a new curve can develop and change the eye shape. The CYL indicates how much curve is present. The axis indicates where the curve appears on the eye. High index lenses are made using a type of plastic that bends light more efficiently than other common types of lenses.

The result is a lighter, thinner lens that more easily fits inside regular frames. High index corrective lenses bend light more efficiently than standard lenses, allowing for a thinner, lighter lens option.

This makes it easier to fit them inside regular frames and opens up a wider selection of glasses. Those with a weaker prescription can also purchase high index lenses, as they are often lighter than traditional lenses. All glasses lenses work by bending light, and how quickly the light travels through the lens is known as the refractive index. The refractive index generally defines the type of high index lens a person has.

Plastic lenses, known as CR, have a refractive index of 1. High index lenses have a refractive index of 1. Polycarbonate, which has a refractive index of 1.

Many companies offer polycarbonate lenses for an additional fee. Lenses that are 1. Typically, only people with very high prescriptions use these. Our High Index lenses will fit in many different frame types, including drill mount frames, which connect the lens directly to the temple arm of your frame. We add a free anti-reflective coating to your order because these lenses are very reflective, as well as a free anti-scratch coating because you deserve it. First, pick the type of eyeglass lenses that you need, the lens material and any other options.

LensFactory offers a wide selection of available lens. From plastic to glass, we have you covered. Send us your current or new eyeglass frames, and latest prescription with your pupil distance.

We can also find your PD from old lenses that you send. Our shipping kit makes it easy! Sit back and relax while we make your new lenses. After replacing your lenses, we will send your glasses back to you! High index lenses 1. Top Quality Thinnest 1. Tianhe Manufacture Lenses 1. Dagas 1. High Index Lenses. RX lab freeform customization lenses IOT design index 1.

Eyeglasses Lenses Lenses. Supplier Types. Product Types. Ready to Ship. Malaysia Pakistan 4. Taiwan, China 1. Vision Effect. Lenses Color. Lenses Material.