More on Lenses

I just wanted to add a little more information about the types of lenses that are commonly available (and that'll you'll be able to order at Focalise Eyewear).

Standard plastic CR39 - we use 1.49 index lenses as standard - these lenses are ideal for most prescriptions - for powers that are beyond +3.00 or -3.00, these lenses may give a distorted affect.

Plastic 1.56 - our standard thin lenses - again should be fine for prescriptions with powers that are between +3.00 and -3.00.

Plastic 1.61 - ideal for powers between +5.00 and -5.00.  These are more than 25% thinner than our standard plastic lenses.

Plastic 1.67 - a popular thin lens that is 15% thinner than 1.61 index and 25% flatter - these are good for prescriptions between +7.00 down to -7.00.

Plastic 1.74 - the thinnest plastic lenses currently available in the market - over 50% thinner than our standard plastics and 30% lighter than the glass equivalent - excellent for mid to high powers, but obviously a bit pricey.

Glass 1.7 - a "budget" thin lens for high power prescriptions - obviously heavier than plastic equivalents.

Glass 1.8 and 1.9 - rarely used, but can be for high powers - expensive options.

Please note that the above options cover the range we offer in single vision lenses only.  We only currently stock 1.61 index lenses for bifocals and varifocals.

Comments

[rosanna2010]

Sunglasses are a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from damaging or discomforting the eyes. Thus i always love to wear sun glasses.

workwear

[Eyeweardaily.com]

Awesome work here my friend. Kudos for writing, truly figured out very much right here.