It is difficult to align the lens with the line of sight. Very painful on the nose even with the included pads attached (they don't stick and don't solve the problem when added). Return not possible due to hazardous waste problems. (This was a Revain issue… Seller contacted and offered help and refund when I couldn't get the glasses to work.) Edit after seller contacted them: They offered to return the product but made some suggestions to try to change glasses first move. Following the seller's instructions, I removed the bridge of the nose, removed the temples and replaced them with a headband. Now I can wear them with good vision. These are the solution, and while I don't find them particularly comfortable (I could put a moleskin between my forehead and a dot-textured pillow), at least they're comfortable and useful at this stage. I value customer service and helpful tips to make it work, and also offer refunds for returns. Given the opportunity to get a better arrangement for my close-ups... I'm neutral on the product itself - it might be just what you need, but it wasn't my best fit.
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