Doctor insights on:
What Are The Best Eyeglass Lenses That Change To Dark Shade
Transitions: My personal favorite is transitions xtraactive which is one of the few photochromic lenses to actually darken in the car. Most lenses that darken automatically are activated by ultraviolet light and need to be directly expsed to uv light in order to activate/darken. The transition xtraactive lenses have a slight tint indoors but will darken in the car as well as outdoors. ...Read moreSee 1 more doctor answer
Water: Although, you may get bombarded with a number of eyeglass cleaners, in my experience and opinion, there is no better one than water. I use liquid hand soap and tap water to clean my glasses daily and then tap them dry with a flanel cloth. Works like a champ! ...Read moreSee 4 more doctor answers
I just bought contact lenses and i noticed a dramatic change in my vision from my eyeglasses. I see way clearer. I feel and see shapes and size, why ?
How can I fix small scratches on eyeglass lenses or lessen their effect without distorting vision?
You can't : You replace the lenses.Get a more detailed answer ›
No: I wouldn't worry too much about that. Do clean if off thoroughly before using. ...Read more
A little more: Polycarbonate lenses have a higher index of refraction and can be made a little thinner which lightens the eyeglasses and makes them more comfortable. So they charge a little more for them. I consider eyeglass costs way too high for the technology and manufacturing costs, but it is an industry charging what the public will put up with. ...Read more
Very different: Eyeglass lenses can either magnify, minify (make images smaller) or correct astigmatism. Magnifying glasses are used in readers and prescription lenses for farsighted and presbyopic people, while minifying lenses are used for those with nearsightedness. Also, there can be magnification or minification with astigmatism correction at the same time. Glasses are built specifically for your vision. ...Read moreSee 1 more doctor answer
Safety glasses.: Polycarbonate (a type of plastic) in cetain thicknesses and specifications, is the type of material used in most industrially used safety glasses. It is reputed to be able to stop a speeding bullet (depends on the speed and type, of course)! most high-index eyeglass lenses these days are made of alternate material with better optic quality than polycarb. ...Read more
Snap and crack: For the same size lens Plastic is heavier. Polycarbonate will be uv400. For those 2 you probably can't tell. Plastic snaps or shatters went bent past tolerance, polycarbonate just bends and then past tolerance will not resume its original shape. Plastic is typically cheaper but has better optical quality ...Read more
Aspheric glasses: Aspheric glasses may minimize induction of aberrations in nearsighted people but usually not to a clinically significant degree. That being said you are better off spending your money on high index glass to minimize the thickness and weight of your glasses. Contact lenses are also a very good option. ...Read more
Hi, I have this eyeglass lens cleanser that I found in my house; it's a few years old. Is it still safe to use them on my eyeglasses?
I discarded 2 pairs of high cost progressive eyeglass lenses due to inaccurate astigmatism results by 2 optometrists. The 3rd one got it right. Why?
3rd Times a charm: Is the question, why did the 3rd one get it right? That could be that the 3rd one got it right because he did a better job-Or that he saw the other 2's mistakes & did not repeat those mistakes. If you are asking why the other 2 optoms gave you glasses that your eyes were not comfortable with then it could be a few reasons. If you are asking why you discarded 2 pairs of glasses, that is a good "?" ...Read moreSee 1 more doctor answer
I have a crack a polycarbonate eyeglass lens starting at the edge. What would happen if hit by ball?
The ones you like: Most people know instinctively what they like and what makes them look good. You have o wear them so you should pick out what you like. ...Read more
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