A person who has usable vision should first consider having a Low Vision Examination conducted by an optometrist or ophthalmologist who has had training in the area of low vision.?In this way you'll learn if any low vision devices, such as magnifiers or a CCTV, could be of benefit to you when you're reading or writing.?After you've explored all the low vision device options you may still feel you could benefit from learning Alphabet or Literary Braille. Again, the choice is yours, but do check out the low vision devices as they could be of help to you.