瞭解的LASIK手術以或沒有解釋Lasik手術為大家的IntraLase技術
LASIK手術在美國對待大約258,000隻眼睛近視眼和散光一年。 它是一快的門診病人手術(在30分鐘以下)，但昂貴的(大約$2,500每隻眼睛)。 它是介入幾乎神奇的精確度的科學奇蹟。
Lasik手術是一個簡單的五步做法。
第一步是準備。 在眼睛檢查計算機使用引起角膜的地圖1 辨認導致視覺畸變為患者的不規則性。
申請麻醉的眼藥水麻木眼睛為手術，并且外科醫生標記角膜以水溶墨水引導擋水板的替換。
吸圓環輕微地吸引眼睛在它的插口外面并且穩當拿著它，因此microkeratome、外科器械或者刀子用一把擺動的刀片和在軌道附有吸圓環，在皮膜，蓋角膜的膜可能切一塊擋水板。
這是一個痛苦的做法，您可以從上述認為。 實際上您將是醒的全部時間并且看它。 您可以感覺輕微的不是難受，但痛苦。
擋水板，仅160微米厚實或較少比一半人髮的寬度，被摺疊回到曝光角膜的表面。
然後計算機被引導的紫外laser (excimer laser)使角膜的表面光滑，去除在第1步被映射的不規則的「船腹」。 這個過程在許多情況下需要20到30秒。
最後角膜擋水板是被改變位置的使光滑的區域。 由於角膜組織的自然接合質量，針沒有需要。 癒合幾乎立刻開始。
LASIK複雜化是罕見的，多數，其中那從不正當地被形成的角膜擋水板發生結果。
IntraLase使LASIK手術好通過替換您的醫生的microkeratome刀片用提供微米級準確性100%大於microkeratome，是本身一個極端高精密度的設備的計算機被引導的laser。 Intralase gives you greater assurance that Step Two of LASIK eye surgery (creating corneal flap) will be as accurate and as safe as possible.
In a related news shares of IntraLase Corp. (ILSE.O: Quote, Profile, Research), which makes lasers used in LASIK eye surgery, rose 5 percent on Wednesday after an analyst upgraded the stock on evidence of higher usage of its lasers and positive feedback from surgeons.
Wachovia Securities analyst Theodore Huber raised his investment rating on IntraLase to "outperform" from "market perform," sending shares up 90 cents to $19.60 on the Nasdaq.
"This premium-priced, patent-protected technology offers lower complication rates and better visual outcomes than microkeratomes," wrote Huber in a research note to clients.
In December, Huber forecast that IntraLase would garner more than 40 percent of the total laser vision correction market by 2008, which he estimates to be worth $707 million in 2005 and $775 million in 2006.
The company's lasers are now used in about 15 percent of U.S. LASIK surgeries, which aim to correct vision in people who are nearsighted, farsighted or astigmatic by cutting a flap in their corneas and reshaping them. Most surgeries still use microkeratomes to cut the flap.
1The cornea is the outermost layer of the eye. It is the clear, dome-shaped surface that covers the front of the eye. When you touch your eye you actually touch the cornea.
Although the cornea is clear and seems to lack substance, it is actually a highly organized group of cells and proteins. Unlike most tissues in the body, the cornea contains no blood vessels to nourish or protect it against infection. Instead, the cornea receives its nourishment from the tears and aqueous humor that fills the chamber behind it.
Filed under Eye Treatment, Lasik Eye Surgery |
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