I paid over $700 for frameless eyeglasses. Both lenses cracked at the screw near the nose rest, at just over 3 month after purchase. Glasses were used and cleaned very carefully, never dropped or bent, and worn all day. I purchased the glasses at Glen's Eye Care in Manalapan, NJ. I was not told the glasses have a 3 month guaranty. Glasses are bought for use of at least 3 years. Glen's Eye Care said I must call Minima USA to get the problem resolved. I called Minima USA and was told the Poly lenses I bought do crack and that they have other, more expensive lenses that will not crack. I spent over $700 and was not told about the possible problem or that there was a better alternative. MinimaUSA said I must deal with Glen's Eyecare. I went back to Glen's and after a major argument, he agreed to exchange the glasses for framed glasses. I now have framed glasses that are strong and fine. These are much less expensive glasses and I was refused a refund for the difference in the price of the glasses.
Do not buy eyeglasses manufactured by Minima USA. Do not buy Poly frameless lenses - they will likely crack. Do not buy eyeglasses without a warranty that is as long as the glasses should last you. You must ask about and get proof of the warranty time and details.