Must the height of frame with bifocal/progressive lens be at least 30 mm ?
Yes. If the height is lower than 30mm, you may experience problem
of seeing far or near....
Can I order the frame with plain lenses?
Generally speaking, all the frames can be made with plain
lenses. Just choose non-prescription lens when you order....
Can I just buy the frame with no lenses?
Yes, just select “Non-RX” when our system asks you to choose the purpose you will use your glasses for your order, and then leave a message in your order or send your request to firstname.lastname@example.org.If you want to purchase a frame in our website and then take it to the local...
Lens Thickness/ Lens Index
a. Standard Spheric 1.5 lens
Standard Spheric 1.5 lens are the basic CR-39 lenses, come with anti-scratch hard coating, and are shatter-resistant, suitable for spherical power +/- 2.00 or below, and cylindrical power +/- 1.50 or below.
b. Super Flex Aspheric 1.56 lens
Super Flex Aspheric 1.56 lens are super light and highly impact-resistant. These lenses are...
What type of bifocal lens do you use?
We use Flattop or Roundtop for all our bifocal lenses.Flat-top bifocalsRound-top bifocals...
What coatings and add-ons do you offer for your lenses?
We offer anti-scratch, anti-reflective/anti-radiation, UV coating, tint, mirror, Super Hydrophobic Water Resistant A/R , Oleophobic Fingerprint Resistant A/R Coating and photochromic add-ons.
All our lenses come with anti-scratch hard coating to avoid lenses being easily scratched, ensuring vision clarity and durability.
Anti-reflective coating reduces the reflection of light, enhances the light transmission...
Do you offer bifocal or progressive lenses?
Yes, we do process bifocal lenses and progressive lenses.
You may start by selecting the proper frame with height over 30mm for making bifocal or progressive lenses and then input your prescription as requested.Please note bifocal/progressive lens are needed when there is ADD in your prescription. Check here for frames available with bifocal/progressive lens: http://www.firmoo.com/bifocal-glasses.html...
Do you have prism lenses?
We only provide
single vision prism lenses right now. Just upload the picture of your original prescription and then our professional will help check it. ...
Can I buy lenses only to fit into my old glasses frame?
No, we offer our lenses with our frames as a whole package.
We strongly suggest not to do it as the lenses may not be suitable for
your old eyeglasses frame if you buy them only.What's more, the best service life of frame is about one year. The frame may be deformed and...
How to choose lenses?
This mainly depends on the strength of your prescription. The higher the prescription, the higher index is required for the lenses. Selecting a higher index will ensure your lenses are as light and thin as possible. This will improve the overall look (by being thinner) and comfort (by being lighter)...
What is the difference between single-vision and bifocal/progressive lenses?
Single vision lenses refer to lens that have only one
use, to see objects in the distance, to see intermediate like computer or phone, or to see near for reading (reading glasses), while bifocals/progressives are a type of prescription eyeglasses that can be
used to correct both near and farsightedness. This
means you can...
Can I order lenses that are both tinted and photochromic?
No. Both work as sunglasses and cannot be combined
Do the lenses include coating?
All of the lens have anti-scratch coating. The sunglasses lens have UV coating and the 1.60 super thin lens come with anti-reflective/anti-radiation coating. ...
Which kind of lenses are free?
Standard index 1.50 lens are free....
What're the difference between Tint lens, Photochromic lens and polarized lens?
The effect of tint lens is thoroughly and only one tint
color no mater indoor or outside. Photochromic lens are transparent indoor
while color darkens outside. Polarized lens have the same color indoor and
outdoor, and their effect is better than tint lens and can filter harmful UV....