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Intralase SBK
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Intralase SBK : ウィキペディア英語版
Intralase SBK

Intralase SBK (Sub-Bowman’s Keratomileusis) is the name of a refractive surgery procedure deriving its name from the Intralase Corporation which is owned by Advanced Medical Optics (1), a division of Abbott Laboratories (2).
Intralase SBK (sometimes referred to as “SBK”) is a method of Laser Vision Correction that employs a process called photodisruption to create a thinner flap than that usually created by a microkeratome. The procedure is essentially the same as Bladeless LASIK but with a different brand name. The process uses highly focused, femtosecond-duration laser pulses to divide material at the molecular level without impacting the surrounding tissue. Microscopic bubbles of carbon dioxide and water vapor are created at the points where the laser is focused. Thousands of these bubbles are precisely positioned to define the flap’s dimensions, as well as the location of the hinge. The surgeon can then lift the flap and perform corneal ablation using an excimer laser, which corrects refractive error in the eye. When the treatment is complete, the flap can be accurately repositioned due to its beveled edge.
==Flap Thickness==

Like Bladeless LASIK, Intralase SBK uses a computerized process to create a flap that is thinner and more precise than one made by traditional microkeratomy, which means the laser correction takes place much closer to the surface, similar to what occurs during a standard Photorefractive keratectomy (PRK) procedure. With a thinner flap – approximately 95 µm, versus 150 µm for traditional microkeratomy – the eye maintains its structural rigidity. Advocates of SBK explain that a thin flap combines the advantages of Blade LASIK and PRK without the disadvantages. Preserving the flap results in faster visual recovery, less discomfort, reduced risk of haze, and the thinness of the flap preserves the biomechanical properties of the cornea, which are weakened with traditional microkeratomy flaps. Recent studies have also shown that corneal sensitivity after SBK is similar to that after PRK. (3).

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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