Well, as a matter of fact, I have got some previous experience in buying transition glasses at Walmart, since I find those glasses good for my vision to improve. So personally speaking, they are worth buying if well chosen. However , what you need to do is to consult a docotor and follow his instructions before you buy them. That would be the best strategy.
Yes, there is. They are of course worthy to buy. The transition glasses with different prescription lenses will help you improve your vision. At the same time, it will make you see things clearly and adjust the vision at different degree. If you buy from the walmart, you may spend at the suitable price.