How many degrees of myopia become blind

Myopia is divided into congenital and acquired, acquired most of it is caused by improper use of the eye, wrong posture of the eye, such as overwork of the eyes, long-term watching TV, watching computers, which may cause myopia. Myopia generally does not become blind, high myopia may show retinal degeneration, cracks, or retinal detachment, which may cause blindness.