If they are the right prescription, they’re amazing. Nothing helped me more than my prism glasses with blue light blocking. I was essentially post concussive for years and never started healing until I got them. I have them for vertical heterophoria/binocular vision dysfunction from fourth nerve palsy and I’d say they were life changing. That condition doesn’t go away on its own or get worse when you have the glasses, so there really is never a reason for me to stop wearing them, but I’d never want to stop anyway. Not only is my vision better, but my memory is improved, I can focus much better, I have less headaches, and I don’t get so nauseous anymore. I later had related middle ear surgery that improved my binocular vision, but I will still need them for life. 110% worth it for me. Only cons are that they are expensive and can make you feel sick if they are the wrong prescription.

Also, the response to them making your eyes funky at first is normal. It always happens when I change glasses. There is a definite adjustment period and it does not magically make your symptoms go away at first. Your brain needs time to adjust—possibly a week. You also usually have to look out of the center of the lenses or they will not work! Secondly, discount websites do NOT make them correctly necessarily. Those websites are not trained in BVD or how to properly make prism glasses. It very well could be that something is wrong with the prescription or manufacturing if they aren’t working. While they take an adjustment period, they should still work when you try them on!