Is bad vision becoming a problem for you? Vision problem has affected a major part of the world population. As such, glasses and contact lenses act as top rated health aid to you. But would that help you in correcting your vision? No, it would not!
With the use of glasses and lenses, the components of your eye are not stimulated but rather suffer from a narrow range of use. It is a word of mouth that suggests eye exercises to naturally correct eye vision. Natural correction involves eye exercises and relaxation techniques to enhance the optimal muscle strength and coordination of the eyes.
Although exercise is the best alternative one can go for, but our fast changing lifestyles and busy schedules provide hardly any time for ourselves. What to do if we don't get time to de-stress ourselves? Eye vision correction through surgery would be the next possible option in that case.
Remarkable advances have been made in the field of refractive eye surgery for vision correction from time to time. There are number of options available to help the people reduce their dependencies on contact lenses or eyeglasses. The surgery is beneficial to people with problems of myopia (near sightedness), hyperopia (far sightedness) and astigmatism.
Myopia is defined as a visual defect in which distant objects appear blurred as images are focused in front of the retina rather than on it. Hyperopia is another abnormal condition of the eye in which vision is better for distant objects as images are focused behind the retina. Astigmatism is an abnormal condition in which the eye has various focal points causing images to be blurred and distorted. The unequal curvature of one or more refractive surfaces of the eye, usually the cornea, prevents light rays from focusing clearly at one point on the retina.
Today, vision corrective surgery provides various options, a few among them include:
?Radial keratotomy (RK)
?Laser vision correction
Photorefractive keratotomy
Laser in situ keratomileusis (LASIK)
Laser thermal keratoplasty
?Intacs
?PRELEX (presbyopic refractive lens exchange) or clear lens extraction.
Although these surgeries are well advanced with technology, but being a surgery, it does involves some risk factors. In laser vision corrections, risk may occur during the procedure of surgery or at the time of healing. Sometimes infection of the cornea or inflammation can also occur. Refractive complications include under-corrections or over-corrections which may demand for further retreatment. The most common complication after the treatment is of dry eyes. Dry eyes following Lasik may be due to decrease in corneal sensation as the microkeratome cuts through the superficial corneal nerves.
Laser Vision Correction New
Lasik surgery is perhaps the most common type of surgery that is performed in the US. Lasik is a type of surgery that changes the shape of the cornea to help correct the vision. Lasik surgery is a common procedure where a laser is guided to correct the cornea. However there are new developments in the Lasik eye surgery procedure and one major development has been the custom Lasik surgery.
Let us understand what custom lasik surgery means here. In the conventional world the Lasik eye surgery is used to correct the vision whereby using the laser the surgeon corrects the cornea. In the custom Lasik surgery the doctor uses the results from the laser to detect the aberrations and then use those results to direct the laser to a correct place on the cornea. In a nutshell, the laser is used for two things one is detecting the aberration and then uses the individual customized results to direct the laser.
Wavefront technology is not very new though it has been only a few years since the Wavefront technology has been used in the eye surgery area. Astronomers used to apply this technology to adjust the optical lenses of their telescopes. There is a reflecting mirror in the telescope which is constantly adjusted based on the information the Wavefront data sends about the deformities or aberration in the atmosphere.
The scenario is something similar in the human vision area where the Wavefront technology is used for doing two things. One is the detection of the aberrations and then other is corrections of the aberrations using this data received while detecting aberrations. Now the data received is different for every individual and hence customized. That is why in the Lasik world this is known as custom Lasik and the normal Lasik surgery is known as conventional Lasik surgery.
The manufactures who make this Wavefront responsive technology available to doctors are only four in the United States. These come with trade names like CustomCornea, CustomVue and Zyoptix. These three are customized Lasik solutions and the last one by the trade name Wave Light Allegretto does not use customized data but uses the data which was derived in the laboratory to guide the laser.
The Wavefront diagnosis is done using light which is sent into the eye using a specific pattern and if there are aberrations then light will come out in a wavy pattern. Then there are higher order aberrations which can only be detected by Wavefront diagnosis. Conventional eye exams can only detect lower order aberration particularly related to cylindrical and spherical aberrations. So make sure to ask you doctor about conventional as well custom Lasik and evaluate your options.
Both Ventura Eye Institute & Amit Kheterpal are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
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