近视

Objective To evaluate the effect and safety of laser in situs keratomileusison low,moderate and high myopia using a scanning spot excimer laser.

目的 探讨小光斑飞点扫描准分子激光系统应用于准分子激光角膜原位磨镶术治疗低、中、高度近视的效果。

Myopia prevalence and mean spherical equivalent in relation to patterns of near, midworking distance, and outdoor activities.

近视发生率和球面镜片均值与近距离学习形式，户外活动有关。

RESULTS: Patient age ranged from 18 to 43 ( 25.3±5.7) yaers old. Mean preoperative spherical equivalent refraction was -7.44± 2.13 D (range,-1.50 to -14.50 D).

结果：本组患者年龄为18～43(25.3±5.7)岁，平均术前等量球镜近视度数为(-7.44±2.13)D(-1.50～-14.50)D。

Methods LASEK was performed on 40 eyes of 22 patients with extremely high myopia. Mean preoperative uncorrected visual acuity was 0.02±0.02(range 0.01-0.05) and the mean spherical equivalent was -12.75±2.30 D.

应用德国Zeiss MEL 80准分子激光器对－10.00以上的超高度近视22例（40眼）施行LASEK术，术前平均裸眼视力0.02±0.02 (0.01~0.05)，平均等效球镜(-12.75±2.30)D。

Synoptophore combined with Yans randomdot stereograph was employed for distant stereopsis. Furthermore, the identifying time for minimal threshold of distant stereopsis was measured simultaneously.

200608/200612间观察在我院行 LASIK 手术的46例中、高度近视患者，于术前，术后1wk，术后1mo检查远体视锐度（包括交叉视差和非交叉视差）及测量远立体视锐度最小辨别阈值的辨认时间。

Companies rely on High technology, with the international advanced production technology and manufacturing equipment, production of environmental protection, health, energy saving, no stroboscopic, no radiation, effective in preventing myopia, eliminate radiation on the brain injury and harm to the human body to a certain extent, depending on the benefits Smart lights series.

公司依托高科技技术，凭借国际先进的生产工艺和制造设备，生产制造具有环保、健康、节能，无频闪、无辐射，有效预防近视，杜绝辐射对人的大脑伤害和对人体造成一定危害的惠视聪明灯系列产品。

Excimer laser refractive surgery is an important adjunct to the subspecialty of refractive surgery. The principles of the excimer laser refractive surgery and surgery categories are analyzed.

在初始角膜模型假设的基础上，提出了能够用于近视、远视和散光等屈光手术的数学模型，计算出切削量和切削的层数，并给出了相应的算法框图。

At present, myopic people are increasing, and each kind of eye care products are more and more, so our machine which has superior function and design will be their first choice.

目前随着近视患者比例的显著增加，各种护眼液产品的市场空间越来越大，因此，该生产设备凭借其绝对的功能以及设计上的优势，必将成为新建滴眼液生产厂家的首选设备。

Believe yourself when you are having an exam,pay attention to don't lose your scrip on the floor,because the surveillant teacher is not nearsighted except he or she is sleeping.

考试时，凭着自己的感觉走。注意，小纸条不要掉在地上，因为监考老师不是都是高度近视，除非他睡着了。

He likes to sit in front of the screen which made him badly shortsighted, playing with codes arid talking with the machine; he likes to manipulate the mouse, surfing on different websites and playing some tricks as well.

他只知道他目前的生活不能没有电脑。他喜欢做在那个让它得了深度近视的屏幕前玩游戏和与机器对话。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐