A.老視者晶狀體硬化,彈性減弱 B.視近物時應佩戴凹透鏡 C.老視者近點前移 D.老視是病態(tài),屬于屈光不正
A.4mmHg; B.5mmHg; C.6mmHg; D.8mmHg
A.30mmHg; B.40mmHg; C.50mmHg; D.60mmHg