视力不良是裸眼视力低于多少|
  • 视力不良是裸眼视力低于多少|
  • 视力不良是裸眼视力低于多少视力不良是裸眼视力低于1.0,凡裸眼视力低于1.0者即为视力不良,可因屈光不...