Choosing the Right Lens
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Lenses come in a variety of materials and thicknessses. If you choose one of our thin lens options we will use plastic lenses with a high refractive index to make up your glasses. We do this because they will significantly reduce the thickness of the lens and are far lighter than glass and less fragile.

You will see that our web site offers thinner lenses at extra cost than the standard 1.56 lens that comes FREE with your frame.

In most cases, our standard CR39 1.56 plastic lens is ideal but prescriptions that are stronger with powers over +3.00 and -3.00 will start to look a bit thick.

Plastic 1.6 Thin lens - For prescriptions +3.00 to +5.00 OR -3.00 to -5.00 the 1.6 thin lens is a good option and results in a lens that can be up to 23% thinner than the standard plastic lens. Prescriptions outside of this range will again, start to look too thick.

Plastic 1.67 Thin Lens – A very popular lens as it is up to 15% thinner than the 1.6 and around 25% flatter. Ideal for prescriptions up to + and – 7

Plastic 1.74 Thin Lens – This lens is the thinnest, lightest and flattest lens available. This is up to 40% - 45% thinner than a standard lens and around 25% – 30% lighter. An excellent choice for mid to high prescription values.