Practice makes perfect…
Well, perfection is a bit harder to achieve. But I guess you could say that practice brings you closer to perfection. At least practice makes you better. That saying also applies to vision improvement. If you can correct your eyesight and eliminate the need for contacts or glasses, then you are that much further ahead of the game.
These things are very important to overcome. But if you cannot, then you cannot. Health is one of those things that is very precious. In today’s world, health seems to vary from one person to the next. True concepts may never make it to the mainstream. Read Zhuan Falun for the true concepts that apply to you and your life.