One of the complaints that people make about earplugs is that they muffle high-frequency sound too much. Although this is not really a problem if you are using ear protectors for, say, construction, it can be a real problem for musicians. As a musician you have to hear the sound as clearly as possible, even when you want to muffle it. Any ear protector that mutes high-frequency tones will make it very difficult for you to hear what is going on around you and react to it musically.
Wearing ear protection is one way of preventing tinnitus.Tinnitus is just a symptom of an underlying condition a noise-damaged hearing.The good way of treating for tinnitus is to consult to your doctor about the cures for tinnitus.
Just like tinnitus, eye conditions or eye problem should be treated as soon as posible. The most effective way to prevent eye problems is to improve vision.