The Eye Care Blog眼科护理博客

Approximately 14 million Americans over the age of 12 suffer from visual impairment, according to the National Health and Nutrition Examination Survey (NHANES).大约14万美国人12岁以上的患有视力障碍，根据国家健康和营养检查调查（ （ NHANES ） ） 。 The most common forms are the refractive disorders myopia and hyperopia.最常见的形式是屈光疾病的近视和远视。

Myopia (nearsightedness) is a condition in which distant objects are out of focus.近视（远视）是一个条件，其中对遥远的物体是出于关注的焦点。 It happens when the eyeball is too long or when the outer layer of the eye, the cornea, has too much curvature.它时会发生眼球过长，或当外层的眼睛，眼角膜，太多的曲率。 This causes the light rays to focus at a point in front of the retina instead of directly on it.这会导致光线集中在一个点在前面的视网膜上而不是直接对。

Hyperopia (farsightedness) is the opposite problem: Close objects are out of focus.远视（远视）是相反的问题：近处的物体是出于关注的焦点。 Here, the problem is that the eyeball is too short or the cornea has too little curvature.在这里，问题是，眼球是太短，或角膜已太少曲率。 The light rays therefore focus behind the retina.光线的焦点，因此背后的视网膜。

Current treatments for myopia and hyperopia include several that are widely used as well as those targeted for unusual cases.目前治疗近视和远视包括几个被广泛采用，以及那些针对不同寻常的案件。 In addition, some new techniques are under development:此外，一些新技术正在发展：

· Corrective lenses such as contacts or glasses.矫正用的镜片，如接触或眼镜。

· Laser-related surgery such as Lasik, or PRK (photorefractive keratectomy),激光有关的手术，如LASIK术后，或PRK治疗（屈光性角膜切削术） ，

· Orthokeratology, a nonsurgical method using special rigid contact lenses that flatten the eye while you sleep.角膜塑型术，非手术方法，使用特殊的刚性接触镜片扁平的眼睛，而你的睡眠。

· Clear lens extraction is a surgical procedure in which the lens in the eye is removed and an artificial lens is inserted.明确镜头的提取是一种外科手术程序，在其中的镜头，眼睛是删除和一人工晶体插入。

· Phakic intraocular lens treatment involves inserting an implant into the eye while leaving the natural lens in place. phakic眼内晶体的治疗涉及插入一个植入眼睛，而离开自然的镜头。

Researchers are also looking at ways of slowing the progression of myopia, especially among children:研究人员也正在研究方法，减缓近视的进展，特别是在儿童中：

· Bifocal glasses have been shown to slow the worsening of nearsightedness.双部位眼镜已显示缓慢恶化，近视的。

Link链接

Filed under提起下 Bifocals bifocals , ， Contact Lens接触镜 , ， Dry Eyes干眼 , ， Eye Treatment眼科治疗 , ， Glaucoma青光眼 , ， Hyperopia远视 , ， Lasik Eye Surgery LASIK治疗眼科手术 |

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• Lasik Surgery In Kolkata, India: A Report LASIK手术在加尔各答，印度：一份报告
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• Dr. Stephen L. Ebersole Joins Local Eye Care Practice史蒂芬博士的研究ebersole加入当地的眼睛护理实践
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This entry was posted on Thursday, September 14th, 2006 at 9:59 am. 此项目被张贴在周四， 2006年9月14日在上午09点59分。 You can follow any responses to this entry through the 您可以按照任何的反应，此项目通过 RSS 2.0 2.0 feed. 喂养。 You can 您可以 leave a response 留下的回应 , or ，或 trackback Trackback跟踪 from your own site. 从你自己的网站。