Please don' t think like that. You can not call a person with severe myopia a disabled guy, which will definitely make him sad. It is absolutely not a disability, and it is just a detect, you know? In other words, severe myopia is also a kind of nearsightedness, but much worse than common nearsightedness. Besides, people with severe myopia just can' t see things clearly when in a distance but they can still see things nearby. They are not blind, so it is unfair to call them the disabled. I wish you could understand better from my answer.