Is it necessary to be short-sighted when the hyperopia reserve is insufficient?

If the parents are shortsighted

, there

are genetic factors for myopia, eye habits are not good, long-term use of electronic products or reading, eye posture is not accurate, often excessive use of eyes, may occur myopia. If the parents are not shortsighted, no genetic factors for myopia, good eye habits, limit continuous use of eyes, so that the eyes get a full rest, may not occur myopia

.