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How to choose suitable eyeglasses lens?

Arnold 2021-07-08 18:25:27

A pair of good glasses is made of suitable frame and suitable lenses. You can pick the frame according to your face shape, but how do you choose the most suitable lenses? Next, experts from Lensmart Online will provide you with instructions for picking the most suitable lenses.

Lens index is perhaps the most important factor to consider when choosing the lenses, because it indicates the thickness of the lenses.

What is lens index?

Lens index refers to the refractive ability of the lens, the higher the index, the thinner the lens. At Lensmart, we offer a variety of thickness options, from the standard lens to super-thin premium lens.

What lens thickness should I get?

The thickness of your lens mainly depends on your prescription and your personal preferences. High index lenses are thinner, lighter, and more stylish. They can be used for high vision correction needs. Low index lenses are more affordable, but can only accommodate low prescriptions. When you put in your prescription, Lensmart website will generate the most suitable lens thickness for you automatically. The chart below shows features of different lens indexes and which one to choose according to your prescription.

Lens Type

Lens index

Features

SPH

CYL

Standard

1.56

For people with medium prescriptions

+4.00 to -4.00

+/-2.00 or below

Popular

(20% thinner )

1.60

Stylish and extra thin

For people with medium-strong prescriptions

-4.25 to -6.75

or

+4.25 to +6.75

-2.25 to -3.00

or

+2.25 to +3.00

Advanced

(25% thinner)

1.67

Extremely thin

For people with strong prescriptions

-7.00 to -9.00

or

+7.00 to +9.00

-3.25 to -4.00

or

+3.25 to +4.00

Premium

(30% thinner)

1.74

Thinnest

For people with highest prescriptions

+/-9.25 and above

-4.25 to -6.00

or

+4.25 to +6.00

Lensmart Online offers a full range of glasses at affordable prices with free international shipping!

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