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Even if LASIK (LAser in SItu Keratomileusis) surgical procedure can be considered the most popular kind of refractive surgery, there are occurrences when it cannot be done. For these situations, another from of laser vision correction treatment is considered. The ASLA (Advanced Surface Laser Ablation) system is used when the LASIK procedure is belived to be inapt for a specific patient, for example, if the cornea is very thin or if the corneal topography is unbalance or if the corneal face layer (the epithelium) is unbalanced. ASLA can be used for correction of myopia or astigmatism, but it is not used for repairing hypermetropia. An eye expert will be able to decide which procedure is best suitable for a particular eye condition.
Here’s a detailed description of how the process is done. The ASLA method takes about 15 minutes for every eye. First, the cornea is anaesthetized. Second, anaesthetic drops are put on to the eye, and an eyelid holder is put in place to hold the eye from blinking. Additionally, anti-inflammation eye-drops are put on to the cornea in order to decrease the post-surgical effect and pain. The corneal epithelium layer is removed after. The front surface coating of the cornea (epithelium) is then tendrly removed away from the rest of the cornea. This shows the corneal ‘bed’ which is now prepared to obtain the energy from the laser beam. The cornea is instantly remodel by the laser. The laser beam, consisting of UV energy, vaporizes a determined total of tissue from the corneal bed, therefore giving the cornea the new shape necessary to correct the eye’s optical remedy. Then, the ample epithelium tissue can be placed back over the corneal bed. A soft contact lens is applied next. Next, the eye is fitted with a “band-aid” soft contact lens for added protection while the outside of the eye restores to health. Antibiotic eye-drops are also put on. Anti-inflammation eye-drops are prescribed.
About 4 days after surgery, the contact lens is removed, and a chain of gentle anti-soreness eye-drops is started. The ASLA technique is similar to the PRK (PhotoRefractive Keratectomy) and LASEK (LASer Epithelial Keratomileusis) techniques, but with particular alterations to help the recuperation of the eye. It is possible to have both eyes subjected to surgery on the same day. For post-operation visual recovery, it can take 4 days or more for patients to accomplish functional ability to see. The eyes frequently feel gritty and stining for about 2 days after operation and, in several situation, they may even sense tenderness firstly subsequent to the surgical procedure. Healing takes about 1-2 months. A mild haze may be present for quite a few weeks. For more information concerning ASLA and additional Laser Vision Correction Treatments, visit the Vision Group clinics or go to http://www.southline.com.au – refractive surgery and cataract surgery specialists.
Tags: cataract surgery, Laser Surgery, Laser Vision Correction, Lasik Surgery, Refractive Surgery
Posted in Health Issues · December 21st, 2009 · Comments (0)
The earliest application of lasers in the every day existence of the general population was the store barcode scanner. It was pioneered in 1974. The laserdisc player was introduced in 1978. It was the first successful consumer merchandise to incorporate a laser, despite the fact the compact disc player was the first laser-equipped piece of equipment to grow to be truly common in consumers’ homes since 1982, followed shortly by laser printers. When lasers were invented in 1960, they were called “a solution looking for a problem”. Since then, they have become ever-present, finding function in thousands of exceedingly disparate uses in a lot of aspects of modern society, including consumer electronics, information technology, science, industry, law enforcement, entertainment, military and medicine.
Laser is an apparatus that ejects light known as electromagnetic radiation through a process called stimulated emission. Laser light is typically spatially consistent, which means that the light either is emitted in a fine, low-divergence beam, or can be transformed into one with the help of optical apparatus such as lenses. In general, even light typically indicates the source produces light waves that are in step. They have the equal frequencies and identical phase. The coherence of standard laser emission is a usual quality of lasers. Most other light sources emit incoherent light, which has a point that varies erratically with time and position. By and large, lasers are thought of as giving off light with a narrow wavelength spectrum or monochromatic light. This is not accurate of all lasers, nevertheless, some give off light with a broad spectrum, while others discharge light at many distinct wavelengths all together.
Laser in situ keratomileusis, LASIK, recognized name in refractive eye surgical treatment, bestows vision improvement through the application of a laser by restructuring the cornea and adjusting its focusing power. Since 1993, LASIK has been carried out in the U.S. on millions of patients with the use of a wide array of lasers. This process can be used to correct myopia or nearsightedness, hyperopia or farsightedness, and astigmatism or distorted cornea. There are at present more than a few diverse lasers that have received FDA permission for LASIK Eye Surgery. There are varied lasers for use in myopic and hyperopic patients, but most allow for rectification of astigmatism.
One of the extreme enemies of our eyes is the sun. Analogous to the skin, eyes are damaged by UV rays coming from the sun, whether it is a cloudy or a clear and sunny day. Sunglasses should at all times be worn in daylight hours when you are outdoors and you need to be sure that the sunglasses you select give UV ray shield. There are lots of sunglasses sold which are just tinted glass and do not really care for your eyes, they simply provide cover from the brightness. Take care of your eyes, we only got a pair. For LASIK Eye Surgery Melbourne, visit the Vision Laser clinics, Laser Eye Surgery specialists.
Tags: Astigmatism Surgery, Eye Surgery, Laser Eye Surgery, Laser Surgery, Lasik Eye Surgery
Posted in Health Issues · November 9th, 2009 · Comments (0)