推荐回答(5个)
标准。学龄前儿童视觉仍处于发育过程,6岁后相对稳定。对于不同年龄的孩子,应采用不同标准判断视力是否异常。
一般,3岁孩子视力≥0.5(4.7),4岁视力≥0.6(4.8),5岁视力≥0.8(4.9),6岁及以上视力≥1.0(5.0),就说明视力正常。另外,孩子发育情况不同,视力标准也只能作为参考,要综合验光结果判断。如果孩子视力低于同龄人正常视力下限,或双眼视力相差超过两行,说明视力异常。

扩展资料:
影响孩子视力的常见原因有,屈光不正、斜视、弱视等。儿童期是用眼习惯形成的关键时期,家长应该帮助孩子养成良好的用眼习惯,如培养正确的看书、写字姿势、握笔方法。
持续近距离看书不超过30分钟,看屏幕不超过20分钟;在照明良好的环境下读书、写字;多到户外活动;不盲目使用眼部保健产品;到正规医院进行眼部健康检查。
建议3岁及以上孩子至少每年进行一次视力检查,一旦视力异常,应及时到医院做进一步详细检查。
参考资料来源:人民网——为啥孩子视力多为0.8
1岁时相当于成人的10%(0.1-0.2),2岁时相当于40%(0.4),以后每增加1岁,视力大约增加0.2,5岁时视力发育基本完善,应达到1.0。
5岁以内儿童正常视力发育对照表:
1岁 0.1 新视力表4.0
2岁 0.4-0.5 新视力表4.6-4.7
3岁 0.6-0.7 新视力表 4.8左右
4岁 0.8 新视力表 4.9
5岁 1.0 新视力表 5.0
1~3岁孩子的视力发育标准约能达到0.1~0.6之间。一般2岁时为0.4,已经可以判别事物的远近,且视线跟得上快速移动的东西,并看得清楚。3岁时为0.6,视觉较为敏锐,喜欢观察,会借由眼睛来引导手去接触新事物,眼手协调更灵活,立体视觉的建立已接近完成。
如果4岁到5岁之间的孩子,视力达不到标准视力的话,这时候家长一定要引起重视。有的儿童视力稍低于同龄水平,但屈光度在正常范围,其视力会随着年龄的增加而达到正常,属于视功能发育稍迟缓;有的儿童屈光度存在问题,以后的视力将很难达到正常水平,所以,当发现自己孩子的视力低于正常范围时,应及时去医院验光就诊。
另外就是平时一定要养成孩子良好的用眼习惯。
1、孩子一定要注意手的卫生,要勤洗手。孩子玩起来,手上往往沾满了细菌,如果不及时清洗的话,揉了眼睛,势必会让眼睛不舒服。如果不勤洗手的话,把细菌吃进肚子里,也是不好的。
2、如果是上幼儿园的孩子,一定要让老师督促孩子认真的做眼睛保健操。
3、最好不要让孩子长时间的观看电视或者玩电脑。长时间看动画片不仅会让孩子性格越来越孤僻,而且对孩子的眼睛也是百害而无一利。
4、定期补充视力营养素,从根本上促进眼睛的发育,提高视力。一般医生建议服用乐睛视力营养素,温水冲服,坚持服用一段时间,能很好的促进视力发育,提升视力。
儿童视力标准: 婴幼儿刚出生时,眼睛的各部位组织和功能均未发育成熟。多数婴幼儿眼睛属正常或轻度远视,新生儿视力差,只能看见2-3米以内物体轮廓。 两个月婴儿的眼睛能随目标的活动而转动; 4个月婴儿视力为0.02-0.05; 5-6个月婴儿视力为0.04~0.08; 7~8个月婴儿已有固视,能长时间看一个方向; 一周岁儿童能识别眼.耳、鼻等器官; 2~3岁儿童的视力达到0.5~0.6; 3~4岁儿童视力达0.7~0.8; 5~6岁儿童的正常视力接近1.0; 而1.0视力是标准正常视力。
裸眼视力不能说明什么的哦,你需要带他经过电脑验光才行,看他的眼睛是否存在远视、近视或散光。
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