眼部无明显器质性病变,矫正视力低于0.9者称为弱视。若不能及时发现治疗,必将严重影响儿童双眼视觉功能的发育。弱视若不能及时被发现和治疗,拖延时间越长,视力就越难恢复,12岁以后则基本无治愈希望。所以,一旦失去治疗时机,低下的视力将是终身的。弱视危害性严重,却没有什么痛苦的症状,除了部分儿童斜视外,大多数外表看起来与正常人一样。另外,幼小的孩子也不会表达自己的困难与不适。所以,弱视的早期诊断全靠家长、幼教人员的细心观察和及时就医。家长应从小就注意孩子有无不会看东西等视力差的表现,最好在2～3岁时教会孩子查视力。若发现有异常,应及时到医院就诊。医院经过眼部常规检查,首先排除器质性眼病,拟诊弱视者应散瞳验光,了解双眼的屈光状态,必要时配戴合适的矫正眼镜。 No obvious organic eye lesions, corrected visual acuity of less than 0.9 were called amblyopia. If not found in time treatment, will seriously affect the development of children’s binocular vision. Amblyopia can not be found and treated in time, the longer the delay, the harder vision recovery, after 12 years of basic hopeless cure. So, once lost treatment opportunity, low vision will be lifelong. Amblyopia serious harm, but no painful symptoms, in addition to some children strabismus, most appearance looks the same as normal. In addition, young children do not express their own difficulties and discomfort. Therefore, the early diagnosis of amblyopia rely entirely on parents, preschool teachers careful observation and timely medical treatment. Parents should pay attention to their children from an early age will not see things such as poor eyesight performance, preferably 2 to 3 years old to teach children check visual acuity. If found to be abnormal, should be promptly to the hospital. After the hospital routine eye examination, ruled out the first organic eye disease, hypochondriasis should be diagnosed mydriasis optometry to understand the refractive status of both eyes, if necessary, wear the right glasses.