How Does Laser Eye Surgery Work?
Exactly how does laser eye surgery work? Eye Lasers are simply very finely focused beams of uniform wavelength (color) light that use to treat many different tissues in the eyes. The term laser is an acronym derived from Light Amplification by Stimulated Emission of Radiation. What is the purpose of laser eye surgery? The main purpose is to make correction of refractive error and eliminate or reduce a person’s dependence on contacts or glasses.
Following describe how does laser eye surgery work:
- For nearsightedness, farsightedness and astigmatism
How does laser eye surgery work for everyone that having nearsightedness? Photorefractive Keratoplasty is approved by the FDA in the U.S. It is being performed more and more widely elsewhere in the world. Laser light, most commonly produced by the excimer laser, is used to reshape the cornea and thereby reduce nearsightedness. This procedure is expected to become a major means of refractive error correction in this country in the near future. Improvements in post-laser corneal healing and refinements to allow for correction of astigmatism and farsightedness will expand the scope and utility of this technique.
- For retinal blood vessel disorders
Various photocoagulating lasers (argon, krypton, tunable dye) can be used for the treatment of blood vessel disorders of the retina including diabetic retinopathy, vein occlusions and exudative macular degeneration. How does laser eye surgery work in these cases? It works by obliterating or sealing the abnormal blood vessels. Treatment is usually conducted in an office setting or in a hospital outpatient department. A special contact lens is used to focus on the part of the retina being treated.
Does laser eye surgery last forever? The results of retinal photocoagulation depend on the status of the eye being treated. In some cases, dramatic improvements in vision can be achieved; in others, treatment may be ineffectual due to the advanced and progressive nature of the disease. Postoperative care usually involves the use of drops for a brief period of time and regular follow-up checks to monitor the status of the eye.
- For Retinal break
How does corrective laser eye surgery work in treating retinal breaks? Retinal breaks (holes and tears) can often be treated by laser; providing certain criteria are met with regard to size, type and location of the break, laser treatment can seal the break and thus preventing retinal detachment.
A special mirrored contact lens is used to visualize the break and to direct the retinal laser beam (usually argon). Two or more rows of coagulations are placed around the laser applications break. The resultant adhesions that develop between the surrounding retina and the underlying tissues safeguard against detachment by preventing the seepage of fluid through the break and under the retina. Despite adequate treatment, it is still possible to develop a retinal detachment from the original break or an additional new break. ostoperative care includes limitation of activities for a variable period of time and careful follow-up checks by the ophthalmologist.
Is laser eye surgery safe?
It is safe as there will be a complete and proper evaluation on your eye by your doctor and come out with the most suitable surgery options for your eye condition. The surgery is generally performed in the hospital setting and some require the same elaborate preparation and sterile technique that conventional surgical procedures require. Though lasers are widely used today in ophthalmic surgery, they cannot be used for all procedures. Constantly evolving technology is, however, enlarging the spectrum of disorders that can be safely and effectively managed with this modality.