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You have mentioned that you had less vision in one eye at the age of 12 years. This goes in favor of the weak eye being amblyopic. Amblyopia with vision problem should be initiated very early in life, before the age of 10 to 12 years. Was any treatment, like patching, done at that age? As the eye was weak before, LASIK surgery will not help in improving the vision. Nowadays, current research shows that some cases of amblyopia may improve at a later date also. So, I suggest you continue patching of the unaffected eye (good eye) for one hour every day, while watching television for six months. Remember to wear your glasses, if any, while patching. I hope this helps you. Regards.