Natural Vision Improvemnt is supporting standing that reason for function vision problems is in stress and strain. Strees is condition produced by many negative feelings we have on more permannet basis, so therefore in most cases we are not even aware of it. Eventually, we consider our stressed state as normal and in that case is very hard to release that stress aNatural Vision Improvement is supporting standing that reason for function vision problems is in stress and strain. Stress is condition produced by many negative feelings we have on more permanent basis, so therefore in most cases we are not even aware of it. Eventually, we consider our stressed state as normal and in that case is very hard to release that stress and have our vision improved.