They work, but weight makes them less than comfortable.
They work. They are useful especially if you have neck pain and want to lie flat to watch tv or something. They work well over glasses. They can also be worn without glass but are not as comfortable. Overall, they are quite heavy and can hurt your face where they touch due to the weight.<br /><br />They may not be the best quality- I had to exchange one pair because the prism arrived detached from the glasses. However, I haven't had any issues with the replacements, so I don't think this is a big concern.
Rating: 4 stars