Forum»Flap procedures
Page 1 of 1 [1 Post]
| Author | Message | ||
|---|---|---|---|
Administrator   Firstname: Marc Gender:  Joined: 28 Aug 2004 Posts: 39598 Chats: 11125 Location: Hennef  | Consists in cutting a flap in the cornea in order to access the tissue underneath. Automated lamellar keratoplasty (ALK) Laser Assisted In-Situ Keratomileusis (LASIK) is the most commonly performed refractive surgery procedure as of 2007. Surface treatment ablation has gained a renewed interest in recent years as evidence of good outcomes have been shown. LASIK is performed for a wide range of nearsightedness. The surgeon uses an instrument called a microkeratome to cut a flap of the corneal tissue (usually with about 160 micra in thickness). He then opens the flap like a hinged door, removes the targeted tissue in the corneal stroma beneath it with the excimer laser, and then replaces the flap. Some variations do not use a microkeratome but cut the flap with a laser (intralase). Laser Assisted Sub-Epithelium Keratomileusis (LASEK) is a procedure that changes the shape of the cornea using an excimer laser to ablate the tissue from the corneal stroma, under the corneal epithelium, which is kept almost intact to act as a natural bandage. EPI-LASIK is a new technique similar to LASEK, that uses an epi-keratome (rather than a trephine blade and alcohol) to remove the top layer of the cornea. | ||
| Back to top | View user's profile Send private message Send e-mail | ||
| Guest |
| ||
| Back to top | |||
Page 1 of 1 [1 Post]
| Similar Topics | Re: | Hits | Last Post | |
|---|---|---|---|---|
 | Photoablation procedures Photorefractive keratectomy (PRK) is an outpatient procedure generally performed with local anesthetic eye drops (as LASIK) . It is a type of refractive surgery which reshapes the cornea by destroying microscopic amounts of tissue from corneal stroma,... [General]von mgutt | 0 | 1214 | 07.08.2007, 00:29  mgutt |
| Corneal incision procedures Radial keratotomy (RK) uses spoke-shaped incisions (usually made with a diamond knife) to alter the shape of the cornea and reduce myopia or astigmatism; this technique has now been largely replaced by the other methods (that use excimer laser).... [General]von mgutt | 0 | 1678 | 07.08.2007, 00:29 mgutt |
| Other Refractive surgery procedures Thermal keratoplasty is used to correct hyperopia by putting a ring of 8 or 16 small burns surrounding the pupil, and steepen the cornea with a ring of collagen constriction. It can also be used to treat selected types of astigmatism.
Laser thermal... [General]von mgutt | 0 | 535 | 07.08.2007, 00:30 mgutt |
© 2004 - 2012 www.lasik-forums.com (srv02) | Communities | Imprint