Eyes

Eyes

Under the generic term lambulatorio eye refractive summarizes the operations that you want to change the total rupture force and replace the eye like conventional optical corrections such as glasses or contact lenses, or significantly reduces the resistance of at least. Loftalmologia know several methods of operation for the correction of ò Ametropien, which can differ about the exact measure of pi ù, persistence and potential side effects. From the thirteenth century, the glasses are used to correct the view difficult.
Refractive began at the beginning of the Lambulatorio of the 20th century. The first clinical studies on surgical methods sullindagine of the cornea began in the 1930s with experiments on radi. Up to sixteen oriented radially or star-shaped cut into the surface of the cornea should flatten them with destabilisation, and increase its radius of curvature to correct Kurzsichtigkeiten. However, this procedure has encountered complications from scarring of the cornea. Only in 1978, the radial Keratotomy è been sighted people always pi ù and applied mainly in the USSR and in the United States with initial successes.
When you open the door to the radi. Initially impressive successes were put into perspective by the so-called studio PERK in the United States. There ò shown in between the other cos ì as a significant decline in the medium term a nelleffetto operating prevedibilit ì cos à difficult and has ensured that the radial Keratotomy loses its significance. Rather than face a weakening of the cornea with direct cuts deep, Spaniard Jose Iganacio Barraquer that followed the decline by two-dimensional tissue removal of corneal interior from 1963 (Keratomileusis). Stephen Trokel and others.
1983 first described the method of correcting refractive excimer laser with a.
in 1987, by Theo Seiler allospedale Department à Department à free Berlin with photorefractive Keratectomy (PRK), this procedure è was followed for the first time in humans. In the 1990s, the PRK pi ù è been developed further to LASEK.
in 1989, Keratomileusis for the first time è been combined with the Excimerlaserverfahren and è was described by Pallikaris and others. as laser-in-situ-Keratomileusis (LASIK). This laser procedure today mainly used and largely supplanted other methods such as radial Keratotomy. In Germany 12. 2% of the population have treat their diseases by means of refractive surgery (since 2004). Each year 25,000 124.000 operations undertaken (according to the source) and increase. Outpatient operation for the correction of deficiencies in the sar currently à% 0 1000-2000 Germany to eye and shall be adopted in accordance with the guidelines of the Federal Committee of doctors and health insurance of 10 December 1999 dallazienda statutory health insurance (there are some rare exceptions), as for example the exchange of objective for cataract) speaks of disease if the reflective axial focal length optical system of the eye does not match the length of the eyeball. Compared to the eyeball is too long, Augenbrechkraft è è myopia, or nearsightedness. An eyeball of too-short leads to farsightedness or hyperopia. Lastigmatismo, corneal curvature or Stabsichtigkeit occurs when the optical system of the eye has different focal lengths in different meridians.
The limit of a specified Ametropie è in diopters. Need myopic Zerstreuungslinsen with negative refractive doublet of farsightedness and power with a positive refractive power. Designates all refractive surgical operations targeting è the breaking strength of the optical system of the eye in such a way that programs the warm environment è to the retina. ò pu ò be there by the change of corneal refractive power (such as laser procedures such as LASIK or PRK, astigmatism Keratotomy) or via an additional or replacement of a generous of the bodys. The change of crushing strength of the cornea is changing their curvature through ablation of tissue (laser) or cuttings defined that determine a change in form largely due to pressure.
Nellocchio myopic è a decrease, in order to crush the reduction of the force and provident above a representation, in order to gain the strength necessary to crush. The generous (so-called intraocular lens) are practically implanted goals that can be selected according to the correction request. While there are implants, that extra ù they used for the purpose of the bodys.

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