Customer:
hi
i would like to now the difference of wide medium and narrow glasses
because im afraid that they would be too big for my face

KZFOO:
Honestly, those are very loose guidelines. What is your PD? I can probably guide you to the size you would need a little easier.

Customer:
59

KZFOO:
Okay. That's a tad small. Do you currently wear glasses?

Customer:
yes

KZFOO:
you can look at the inside of your current pair and match those numbers.
It's usually on the inside left temple, or on the bridge.

Customer:
which numbers?

KZFOO:
It's usually something like 51-16-135

Customer:
ok
and regarding the thickness
my prescription is Sphere -4.50
and right Sphere -4.50, Cylinder -0.25 and axis 140

KZFOO:
Okay. You definitely want to go with at least a super thin aspheric lens.
It has built in UV protection and anti glare.
It'll thin out your prescription quite a bit.

Customer:
it has anti reflective coating?

KZFOO:
Yep. It's already a part of the lens, so you don't have to add it. It's an extra $40-$50 total for that lens upgrade.

Customer:
it is saying that the recommended type for me is standard thin aspheric
but i think the lens would be still thick

KZFOO:
What frame did you choose?

Customer:
E185

KZFOO:
It's a larger frame, so upgrade to a thinner lens might be a good idea. I think you'd be good with the super thin aspheric 1.67 premium lenses. It's the same thickness as the 1.67 standard super thin lens and has that anti glare already.
With a plastic frame, you don't need to super worry about thickness. It'll be concealed by the frame.

Customer:
whats the difference between the super flex aspheric $45 and the $50

KZFOO:
1.67 Standard Lenses - Super Thin
Quality 1.67 index clear lenses with UV-protective, anti-scratch, anti-reflective coatings.

1.67 Premium Lenses - Super Thin
Our premium 1.67 index clear lens. Features anti-scratch, anti-reflective, UV blocking, anti-smudge, dust and water-repellent coatings.

You would be fine with either, but if you're worried about thickness, choose that one.

Customer:
ok great
and what about the ultra thin aspheric?

KZFOO:
That will thin it out even more, but you don't really need it with your prescription.

Customer:
and it is with the anti reflective right?

KZFOO:
right.

Customer:
so i better choose the 1.67 Premium Lenses - Super Thin

KZFOO:
That's definitely the best lens and will give you all that you need. :)

Customer:
perfect!
thanks so much for your help

KZFOO:
You're so welcome!