LASIK: Radial Keratotomy

Medical progress has been possible for many patients the option, as an alternative to glasses or lenses. Radial Keratotomy was practiced and generally known to the first surgery, refractive correction of shortsightedness.

Radial Keratotomy was pioneered by a group of Russian motor insurance directives, which the Dutch ophthalmologist Jan LANs were first Lendert 1896 techniques improved upon ophthalmologists and late 1930s ophthalmologist Sato of Japan. Since then, radial Keratotomy is widely performed throughout the world. This action was in the United States extensively shortsightedness correction is carried out at least Medical procedure.

At the beginning of the popularity of this procedure led to the Medical progress to reduce or remove the need for glasses or contacts. However, the popularity of the radial Keratotomy Photorefractive keratectomy is rejected (PRK) as excimer laser Vision correction procedures and after the introduction of LASIK (due to a better degree of predictability and stability).

If you are under the age of 20 are not carried out because the user is not necessarily stable refraction.

Radial Keratotomy, Myopia can be repaired – ½-8.0 D, however, in practice, is a mild. Myopia, even a small correction to the effective-4.00 d to disrupting the Visual problems prior to interfere with Medical repair results.

Radial Keratotomy is an outpatient care Medical procedure. It is made to the surgeon's Office or on the same day surgery Center, in accordance with local anesthesia.

Prior to the cut of your cornea, to determine the exact measurements of the thickness using a special device called a Pachymeter.

The number of eye drops will be placed just before the surgery, the eye. These eye drops anesthetize the eye and prevent infection. You lie down the bed during the surgery. A special solution is used around the eyes. Oman surgeon will guide you through the process of fixate target. The holder of the eyelids (speculum) is used to record a broad range of your eyelids open. The ink marks made tunnistettavasti to parse the optical zone, which is the central cornea clear unincised area. Then your surgeon makes a series of small radius or similar institutions for the promotion and protection of your cornea spoke with the ground, in particular, the special diamond Tipped knife, the depth value. Typically, 90% of the bodies to move to the thickness of the corneal pachymetry depends. The bodies of the quantity being delivered depends on the age and Fold the fault. Generally four or eight, depending on the required radius to create institutions for the promotion and protection of the amount of the correction.

Recovery is usually rapid, only a little discomfort. You can return to normal activities within a few days.

The radius of the bodies created in the cornea provides the Ardennien portion of the cornea and Flatten the border with the central part of the cornea. By varying the length and the number of bodies created by the surgeon directs the patch the quantity produced.

As the bodies to heal after the surgery, the cornea becomes permanently flatter. This corrects Myopia by moving the focal point of the eye closer to the retina and to improve the distance vision. Reoperations (additional functions) may be necessary to improve the result of the surgery.

Radial Keratotomy has several side effects, which make the excimer laser procedures, such as PRK and LASIK is much more favourable, in particular, where holders of higher degrees are used to correct Myopia. These problems are:

1 Self-limited complications:

Glare and starbursts are common, especially in the night, the first surgery, three to six months. Random instability of Visio: Radial Keratotomy is not uncommon for patients to be relatively more developed in the morning and evening, a nearsighted. The higher the fluctuations in emerge.

2-as the Visio changes: the threat of Medical complications

Overcorrection: nearsighted after surgery-with vision. Undercorrection: yet nearsighted after surgery. It occurs more frequently higher myopes. Hyperopic shift; Some eyes have become significantly developed in future years. Gradually over time has become less common Hyperopia phenomenon. Irregular astigmatism , which causes decreased best corrected acuity, Ghost pictures, or double vision.

3-other than Visio, threatening complications:

Loss of use, lenses the shape of the cornea after surgery and can therefore, by reason of new. Today, the new templates and rigid gas Permeability, the lenses can be used to overcome this difficulty, as the case may be.  Degraded cornea , which may rarely value or serious eye cornea Punch after the accident.

4-Vision threatening complications:

Cornea (infectious keratitis) infections: although its presence is less than the contact lens wearers, is considered to be the radius of the drawing-up of the process associated with the most common keratotomy Visio is threatened.  This may occur immediately after the surgery, or later the cornea still improve.

As a alternative to LASIKradial Keratotomy has some advantages, such as corneal tissue loss and relatively low cost. However, the radial Keratotomy is now only a few degrees of nearsightedness in patients who are not good candidates for laser Refractive Surgery to repair.

So if you're handing off surgery improve Myopia, consider the available options to take into account these days, such as LASIK, PRK, LASEK, and intraocular lens silicone prostheses with your surgeon and talk.

Now you can watch the Video of the radial Keratotomy surgery to understand fully how the radial Keratotomy.

References:

1. the Yanoff M, Duker JS, Augsburger JJ, et al., Ophthalmology. 3rd ed., Mosby; 2009.

2. within the framework of the Feder RS and Christopher Jr. LASIK Handbook: Case-based approach, Lippincott Williams & Wilkins, 2007.

3. Mandelbaum S, McLeod SD et al. American Acad. Ophth. Preferred practice patterns, Medical errors, 2002.