Refractive Surgery and Laser Eye Surgery is the set of surgical techniques that aim to eliminate or minimize ocular refractive errors of people suffering from myopia, astigmatism or hyperopia. The image that reaches the eye undergoes a process known as refraction and is projected on the retina, allowing the image to be transmitted to the brain and is perceived clearly. This is what happens in a normal eye. When the eye has a refractive error, the image is projected abnormally, implying an altered perception of the image and, therefore, blurred vision. Scheduling a consult with wavefront lasik can help you repair this issue.
The refraction effects people can suffer are:
Myopia manifests when people perceive distant objects to be blurry because the image is formed in front of the retina, either because the cornea, lens or both are too powerful or because the eye is longer than normal. This visual impairment can develop from childhood and change over time, resulting in changes in graduation.
Farsightedness is an error that causes an issue with visual approach and can cause near vision blurriness, though, after a certain age, distant objects also look weird. In the case of hyperopia, the image is focused behind the retina rather than directly on it.
Astigmatism occurs when the cornea has the same curvature in all areas. The light focuses on more than one point on the retina and causes a blurred and distorted vision. There are several types of astigmatism: single (affects only one axis), compound (associated with myopia or hyperopia astigmatism) and mixed (one axis is focused in front of the retina and one behind). To determine which one you suffer from, visit Dr. Robert Paul at the WA Laser Eye Centre.
Requirements to refractive surgery
Enjoy good eye health.
Over 18 years of age and a maximum of 50 years old.
Ocular stability, i.e., graduation that does not advance at least a year earlier.
Patients must have been without contact lenses long enough before the corneal topography is performed so that the cornea recovers its normal form, two weeks in the case of soft contact lenses, three weeks with semi-rigid lenses, and 4 weeks for rigid lenses.
Diopters must be within range too.
The period of greatest incidence of onset of infection occurs during the first 48 or 72 hours postoperatively. The risk of infection is 1 in 1000 in surface treatments and 1 in 7000 in depth treatments. The best way to prevent infection is to perform adequate preoperative antibiotic prophylaxis and postoperative controls in a timely manner. However, there are reported cases in which the infection could not be controlled. Fortunately, this has never happened to many doctors. Visit Walasereye. to learn more.