查询词典 visual acuity

Although outnumbered more than 20:1 by rod photoreceptors, cone cells in the human eye mediate daylight vision and are critical for visual acuity and color discrimination. A variety of human retinal diseases, e.g.

尽管视杆细胞光感受器在数量上以20：1远远超过视锥细胞，然而人类眼中的视锥细胞担负着调节明视觉的重要任务，并对视力和颜色辨别有重要作用。

RESULTS: The postoperative IOP significantly declined compared with preoperative value (P.05); All maintained functional filtering blebs; and the visual acuity kept invariable or improved.

结果：术后与术前相比眼压明显降低，P.05，差异有统计学意义；滤过泡均为功能性滤过泡；视力保持不变或有所改善；并发症仅为早期浅前房和低眼压。

Methods Forty volunteers with best corrected visual acuity better than 5.0 in the right eye were enrolled in the study. Their ages ranged from 21 years to 32 years; they were all emmetropes or myopes.

对年龄为21~32岁的40例最佳矫正视力≥5.0的近视和正视志愿者分别采用照相机拍摄法、Pupillometer瞳孔测量仪和Rosebaum瞳孔尺三种方法测量瞳孔大小。

In addition, we use contrast sensitivity and contrast acuity as indicators of visual function and try to investigate: 1 the impact of aging on corneal and total ocular HOAs 2 the change of HOAs after the cataract surgery 3 to compare intraindividually the HOAs and functional vision between implantation of spherical and aspherical IOLs.

二、接受白内障超音波乳化术并人工水晶体植入的病人手术前后角膜及眼球整体高阶像差的变化。三、比较接受白内障超音波乳化术并植入传统球面人工水晶体，或新型态非球面人工水晶体术后高阶像差及视觉品质的不同；并分析其可能影响因子。

Methods Four hundred and eighty-four (968 eyes) myopes were treated with laser in situ keratomileusis in the Qinghai Red Cross Hospital from May 2005 to March 2007. The predictability of visual acuity and refractive error postoperative were analyzed.

收集2005年5月～2007年3月在地处高原地区的青海红十字医院完成准分子激光角膜磨镶术(laser in situ keratomileusis， LASIK)的患者484例（968眼）。

On the condition ,for simpling the terrain model ,the paper gives a detailed algorithm by takeing gemotry and visual acuity as error criterion to decrease the load of computer.All these ,the result will realize the purpose of increasing the scene frame rate.

在此基础上，论文利用一种基于几何和人眼视觉空间的混合误差判别准则对地表网格模型进行了一定的简化，并以此来降低计算机的处理数据量，达到快速的场景生成。

Objective To discuss the causes of myopia, and providing evidences of visual acuity health for students in shools.

目的 探讨近视原因，并对在校学生视力保健提供依据。

Fixations are required to recognize words, but saccades are needed to bring new information into the center of the visual field where acuity is best.

注视的任务是辨认词，而眼跳的目的则是把新的信息带入眼球的中央窝视觉区以便进一步辨认它。

Results IOFBs in all the 48 cases had been extracted successfully. Retinal detachment had complete reattached, visual acuity improved in 38 cases.

结果 48例均一次成功摘出异物，有视网膜脱离者均在术中复位。38例视力有不同程度的提高。

Methods Using the corneal topography analysis system, changes in topographic parameters and best corrected visual acuity were analyzed before surgery and 3 months after the surgical removal of pterygia in 56 eyes.

对56例(56眼)翼状胬肉行手术切除，分别于术前、术后使用角膜地形图仪进行检测，记录术前、术后第3个月的角膜地形图主要参数、最佳矫正视力，术前和术后以角膜地形图及综合验光仪验光法确定角膜散光情况，并进行统计学分析。

You can get the best service in the first-class cabin, but you pay for it.

在头等舱可以得到最好的服务，但那是你付钱买来的。

It will make the characters of ethnical and local culture eliminated. On the other hand, this tendency stimulates the arousal of the selfconsciousness of ethnical and local culture. The selfconsciousness comes from the recognition, that is the global culture be a combination of kinds of local culture, not a one kind of culture.

民族和地区&的概念从来就是与&全球的概念相伴的，人类文化的全球化趋势同时也促进了民族性和地区性文化意志的勃兴和加强，它们构成了多种文化并存的全球文化体系中的有机组成部分。