Re: Help me please - I hate all opticians!

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: I just read your comments on opticians. As a practicing optician I would like to congratulate you on most of what you said. A few corrections are in order though. Even though polycarbonate lenses are made for safety conscious wear (E.G. Sports,Kids) they can scratch much easier than most other materials. There surface is softer than plastic and will scratch quicker than most. I do believe safety does come first. Also as depicted in your chart, the best clarity is crown glass, which is depicted by your ABBE value of 59. This is the reason most people see or do not see as clear through the material. All opticians do not know the index of refraction or quite frankly the relationship of a prescription to the materials used. If you want a professional you need to use a professional. Most states require a licensing requirement, unfortunately mine does not. : Scratch coating is not as important if you take care of your glasses properly. UV is very important on plastic lenses. With the proper protection you filter almost 100% of UVA and UVB light. I am not saying that the wrath of GOD will come down and blind you, but having that little extra precaution is worth the few bucks. And as you said it is a must for any sunglasses. : Polarized lenses filter the light coming off the ground as you said, but they work exactly like non-polarized for light that does not reflect off of a surface. Common complaints are that a person sees the tempering in some car windows (looks like purple squares) and digital displays on gas pumps can not be seen. All in all they are worth every penny as a sunglass. : Unfortunately, there are some places that sell 1-2 layer AR coatings, what I like to call a "crappy paint job". The reason a good AR coating works is that it flexes with the lens. By the way the scratch coatings are actually in one of those layers which are measured in microns. The AR coating will let 99% light into your eyes, to compare this vision look out of a window at the vision, than open the window and you tell me which seems better. When light is transmitted through any material it is bent, when more light travels through it gives you a clearer picture. : I am truly sorry that you received the horrible treatment at some of these places. I would just like to let you know that there are plenty of places that the optician values your vision over the price. : I too will put lenses in your own frame, whether one or two. This is done with the knowledge that the lenses might not match in color do to weathering (the lens treatments fade with time, the 1st year you may have 100% UV protection by the time the second year comes around the UV block may be 70% depending on how much time the lenses were exposed to direct sunlight. Also that if the frame breaks we can not be responsible). : The prescription is yours, you do need to take it. If you give the prescription to the shop you are getting the glasses at, ask for it back when it is done or as you said have them make a copy. Asking for a copy of your prescription from ten years back is a little ridiculous. If that was me I would take your phone number and a non-refundable deposit for the time and effort of paying someone who would need to look through the archived records (if a physician maybe, if just a store they might not even keep inactive records that far back). : Douglas B Wohl : Wohl Optics

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