I'm sorry to hear that your son was unable to pursue his career plans due to his eyesight. The best solutions to nearsightedness are glasses or contact lenses
, and so the best thing for your son would be to visit with his eye doctor
, who can help explain to him the need to continue with these treatments. If he has had an issue with contacts irritating his eye, it may just be that he needs to try a different brand of contacts, as different brands work better for different people. Once again, his eye doctor will be able to talk with him about this issue and help him decide what a good solution might be.
Unfortunately, implantable lenses are not a treatment for nearsightedness. Lenses are most often implanted for treatment of cataracts, which is a condition in which the eye's natural lens becomes cloudy, usually from normal aging.
That being said, there is a surgical procedure which can be used for nearsightedness. This is the LASIK procedure, which is becoming more and more popular these days and is performed by many eye surgeons
around the country. If your son is really unwilling to use glasses or contacts (which would be the simplest and cheapest solution) then this might be an option to discuss with his doctor.