High quality triangular prism glasses
These glasses have a triangular prism in front of each eye. The case is better than the case on $200 prescription glasses.<br /><br />My wife confiscated mine and I had to order another. Have purchased 4 sets so far.  That should tell you something about the quality and how happy we are with the purchase.<br />The last 2 we gave away as gifts.
Rating: 5 stars