天气预报15天查询> 其他> 4周岁小孩视力达到多少是标准

4周岁小孩视力达到多少是标准

更新时间: 2020-11-05 00:00:00     

4周岁小孩视力达到0.7~0.8是标准,如果视力低于正常的标准,应该进行一下验光检查。

视力是指视网膜分辨影像的能力。视力的好坏由视网膜分辨影像能力的大小来判定,然而当眼的屈光介质变得混浊或存在屈光不正时,即使视网膜功能良好的眼视力仍会下降。

关键词: 周岁 小孩 视力 达到 多少 标准

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-1309435/ | 耗时:0.6025 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1309435 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1309435 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1309435 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1015577,1052105,1048000,1094219,1092365,1082309,1074630,1057770,1086338,980715,1076786,1092724,1064447,1091362,1067351,1080118,1086698,1081422,996794,1062706,1095307,1068973,1064613,1080116,1084243,1054380,1082303,1057178,1064861,1065589) ORDER BY field (ArticleID,1015577,1052105,1048000,1094219,1092365,1082309,1074630,1057770,1086338,980715,1076786,1092724,1064447,1091362,1067351,1080118,1086698,1081422,996794,1062706,1095307,1068973,1064613,1080116,1084243,1054380,1082303,1057178,1064861,1065589)