编辑同志关于瞳孔的调节,初中《生理卫生》中没有作具体的说明,而且有不少资料对此问题的认识也不正确,如在有的书上有这样一组题目:①人从暗光走到阳光下,(3)(瞳孔)会(变小),这种变化是由于(4)(虹膜)内平滑机收缩引起的;②当人从光线暗处步入光线较强 The editing of comrades on the adjustment of pupils was not specifically explained in junior high school “Physical Hygiene”, and there is a lot of information on this issue is not correct, as in some books there is such a group of topics: 1 from the dark light Go to the sun, (3) (pupil) will (be smaller), this change is due to (4) (iris) within the smoother caused by the contraction; 2 when people step from the dark place into the light is strong