he has very little vision in the left eye.

the doctor stared at him for a while and then asked, "well, but how can you prove to me that your eyesight is bad?"

医生看了他一会儿说：“好的，你怎么能证明你的视力差呢？”

互联网摘选

images must be easy to recognize, even for users who have poor vision.

图像要容易辨别，甚至对那些视力差的用户。

互联网摘选

having poor vision; nearly or partly blind.

半盲的视力差的；几乎失明或半失明的。

provided by jukuu

bad eyesight is less common in this part.

这地区很少有视力差的人。

provided by jukuu

he wears glasses because his vision is poor.

他因视力差而戴上了眼镜。

互联网摘选

windows phone 7 screens are required to respond to at least four simultaneous touch-points.

WindowsPhone7屏幕对于四个点同时触摸产生反应的实现是必须的。

互联网摘选

six months after the operation, the two patients with reduced acuity showed improved vision, being able to read two and four more lines on the sight chart.

术后六个月，两位视敏度较低的病人出现了视觉改善的现象，能够在视力测验表上多看清两到四行字母。

互联网摘选

two still had excellent visual acuity-clearness of vision-which is measured by reading lines of letters on a sight chart.

视敏度也被称为视觉清晰度，通过让病人阅读视力测验表上的字母来衡量。

互联网摘选

now look at this sight-testing chart, please.

现在请看这张视力测验表。

provided by jukuu

[ methods] standard logarithmic visual acuity chart were applied on 19 946 new students of colleges and technical secondary schools from 2003 to 2005. [ results] of the 19 946 new students, the rate of good eyesight was 59.45%.

[方法]采用标准对数视力表，对2003～2005年19946名大中专新生进行裸眼视力检查。

互联网摘选

this new visual picture chart is used for the measurement of visual acuity of 2-3 years old children. bird, fish, house, scissors, cup, apple, umbrella, flower and duck serve as the test optotype.

本视力表所用视标为：鸟、鱼、房子、剪子、茶杯、苹果、雨伞、花和鸭子。

互联网摘选

methods: using a contrast vision chart illuminated at 90 lx, contrast visual acuity ( cva) at 13 contrast levels was measured in 31 pilots with normal visual acuity in normal and in low oxygen.

方法：用投射式双变量对比视力表在90Lx照度下检查31名中国海军航空兵飞行人员呼吸空气和呼吸低氧时13个不同对比度的视力，同步监测心率、血氧饱和度。

互联网摘选

to clarify the advantages of 5-grade notation as well as to describe the development of logarithmic visual acuity charts abroad and compare these charts to the chart used in china.

阐明5分记录的优点，国外对数视力表的发展及其与《标准对数视力表》的比较。

互联网摘选

methods: distant and near vision, positive and negative reserve of relative accommodative capabilities were measured on thirty one freshmen with normal vision by standard vision chart.

方法：应用标准对数视力表对31名视力正常大学新生进行远、近视力及相对调节力正、负贮备的测定。

互联网摘选

methods measurements of contrast sensitivity at 6 spatial frequencies and visual acuity at 4 contrast levels were made in 39 asthenopes.

方法采用对比敏感度函数中6种空间频率和对比视力表中4种对比度的视标对有关人员进行测试。

互联网摘选

objective: to introduce a new visual noise dual acuity chart and its clinical application.

目的：介绍一种视觉噪声双视力表及其在弱视检测中的临床应用价值。

互联网摘选

the electric instrument of turned visual acuity chart with single optotype and its clinical application

翻板式电控单视标视力表及其临床应用

互联网摘选

which room was it in? the chart?

在哪个房间里是视力表吗

互联网摘选

critical issues in recording method and optotype increment during visual acuity chart design

从视标增率和记录方法看视力表设计中的核心问题

互联网摘选

people could study it to pass their driving exam.

人们可以通过学习这个视力表通过驾照考试。

互联网摘选