How many degrees of eye myopia can be inherited

Myopia refers to the state of accommodation relaxation, parallel light through the refractive system of the eyeball before focusing on the retina, can be divided into refractive myopia and axial myopia. Refractive myopia, is due to the cornea or lens bending power caused by too much, the vast majority are congenital. Axial myopia, is due to unhealthy eyes, resulting in the extension of the eye axis, resulting in the occurrence of myopia and the deepening of the degree. It is generally believed that myopia more than 600 degrees, will occur genetic. Therefore, people with genetic tendency should pay more attention to prevent long-term close use of eyes. Close use of eyes for too long will cause visual fatigue, thus causing myopia to deepen faster.