Once I also suffered from this condition. Then I surfed the Internet and found that this was caused by the insufficiency of blood supply at most time, because one may be in the unsteady mood when his/her hypertension or hypotension leads to the insufficient blood supply. At the moment, when you stand up after a long time's squat, your eyes may feel blurred, which we called blurred eyes. In fact, when this case happens, we need some home remedies. As we know, pig liver, vitamin A, B, C, E, fresh vegetables and chrysanthemum tea, etc which are good to eyes can be used to support your body's nutrition. Naturally, such morbidity will decrease in your life.