can you really naturally improve your vision because I have -4 right now and I'm kinda tired of it
To improve your eyesight naturally, blink often as this will keep your eyes fresh and being able to focus longer. You can also do palming as this relieves stress around your eyes. Go to http://www.stevenaitchison.co.uk/blog/5-eye-exercises-to-improve-your-vision/ for more information.
do eye exercise
not really, and the carrot thing is an old wife's tale, i love carrots, i mean LOVE carrots and my vision is still getting worse no matter how many i eat..