Angetastic What's your diagnosis? Neurolens is very expensive, but the company itself offers a refund it it doesn't work; ask your doctor if they will do the same. If you get your money back, it's worth a try.
Neurolens is for convergence insufficiency / vertical heterophoria. Do you have either of those?
Vision Therapy for convergence insufficiency is effective; lookup the Convergence Insufficiency Treatment Trial (CITT).