We will then have an objective measure of how colour discrimination and visual acuity develop at the level of the brain.
我们随后将进行一项客观的测量，看色彩辨别力和视觉敏锐度如何在大脑的层面形成。
Common symptoms include reduced visual acuity, visual distortion (metamorphosia, macropsia and micropsia).
常见病征包括视力减退、影像扭曲（变形、变大或缩小）。
At those moments, our bodies actually take over and increase blood flow so that we have greater visual acuity, increased mental capacity and more oxygen and fuel for our muscles to use.
在那些时刻，其实是我们的身体掌握了主导权，血液加速我们的视觉更敏锐、脑力更强、提供给肌肉更多的氧气恶化能量。
However, resolving power is often compromised by atmospheric conditions and the visual acuity of the observer.
然而，分辨能力还与大气状况以及观察者的视觉敏锐度有关。
Studies have confirmed that ginkgo increases blood flow to the retina, and can slow retinal deterioration resulting in an increase of visual acuity.
研究已证实，银杏增加视网膜血流量，并能减缓视网膜的恶化，结果导致视力的提高。
Patients whose visual acuity (VA) before surgery was< 6/60 in the better eye comprised 47% of the total case mix in poorly developed countries and 1% in developed countries (P < 0.001).
不发达国家中，手术前较好眼睛的视力低于6/60的患者占总病例组合的47%，而在发达国家中此比例仅为1%（P<0.001）。
Atmospheric conditions and the visual acuity of the observer will often reduce limiting magnitude.
大气状况和观察者的视觉灵敏度也会降低边缘亮度。
Visual acuity indicates the angular size of the smallest detail a person's visual system can resolve.
视觉灵敏度指出了人类视觉系统所能分辨的最小细节角度。
Visual acuity was measured at the start of the study (baseline) and then monitored over one year (54 weeks).
在研究开始，所有人进行了视力测试，然后进行一年（54周）的观察。
To help better educate our vision and visual acuity, carry a sketch pad with you always and take time to stop and draw.
为了更好的培养我们的眼光和敏锐的观察力，可以随身携带一本速写本，经常花上一点时间，静下心来画画。
With significant hemorrhage, patients may complain of blurry vision with diminished visual acuity.
若出血情况严重，患者可能会主诉视物模糊伴有视敏度下降。
Vitrectomy may be indicated for severe hemorrhage and substantially diminished visual acuity, especially if it persists longer than 3 months.
当出血情况严重且使视力严重下降，特别是当其持续时间超过3个月时则须要行玻离体切割术。
At one year, 32% of patients in the bevacizumab group gained 15 or more letters from baseline visual acuity compared with 3% in the standard care group.
第一年，进行贝伐单抗注射的32%的患者的可认字母增加了15个，而标准治疗方案组的患者增加了3%。
Visual acuity does not lie in how much we can see, but in what we feel inside.
视觉的敏锐度不在于我们能够看到多少，而在于我们内心的感觉。
It has all the characteristics of a hunter: long legs for the chase narrow neck mobile head and large eyes for visual acuity and large jaws.
它具备捕猎者的一切特点：追击猎物的长腿、窄颈、转动自如的头部、具有敏锐视觉的大眼睛，还有大颚。
The drug will have a boxed warning to alert health care professionals to this risk of a progressive loss of peripheral vision with potential decrease in visual acuity.
该药物被打上黑框，以警告卫生保健专家（该药物具有导致）进展性周边视觉丧失，伴随潜在的视敏度降低的风险。
Visual and auditory acuity level of maturity and a close relationship to the level of people's thinking.
视觉和听觉的成熟水平和敏锐程度密切关系到人的思维能力高低。
Dynamic visual acuity test and evaluation of vestibular function.
动态视力检查与前庭功能评定。
Objective:To discuss the surgery and postoperative improvements in visual acuity of medial sphenoid ridge meningiomas associated with visual impairment.
目的：探讨伴有视力障碍的内侧型蝶骨嵴脑膜瘤的手术治疗及术后视力改善情况。
Major causes of limited visual acuity were central corneal scar and irregular astigmatism.
影响视力恢复的主要原因是角膜中央区瘢痕和角膜不规则散光。
Conclusion Multiple combined surgery can decrease the complications of surgery, increase the cornea clear rate, improve the visual acuity and shorten the process of rehabilitation.
结论复杂性眼外伤眼球前段多联手术，可减少术后并发症，提高角膜的透明率与视功能，缩短疗程。
Optics and optical instruments. visual acuity testing. method of correlating optotypes.
光学和光学仪器。视觉敏锐度测试。相关的验光字体法。
Conclusion: CFF training is an effective method for raising spacial and horary visual acuity.
结论：闪光临界融合频率训练是提高时间和空间视敏度的有效方法。
Be sure to use a font size best suited to your visual acuity, and have your eyes examined regularly - at least once a year - to be sure your prescription is up-to-date.
一定要使用最适合自身视力的字体，并定期检测视力——至少一年一次——以便根据最新的状况采取对策。
Be sure to use a font size best suited to your visual acuity, and have your eyes examined regularly - at least once a year - to be sure your prescription is up-to-date.
一定要使用最适合自身视力的字体，并定期检测视力——至少一年一次——以便根据最新的状况采取对策。
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