diabetes military service
Lasik Eye Surgery with
To reduce the dependency of a person's glasses or contact lenses can undergo Lasik surgery. The term LASIK stands for Laser-Assisted In Situ Keratomileusis and is a method by which you permanently change the shape of the cornea. The cornea is the clear front covering of the eye.
Doctors use an excimer laser to carry out this type of surgery. A small knife called a microkeratome is used to cut a flap in the cornea. A hinge is left at one end of this flap. The flap is back revealing the stroma, the middle folded portion of the cornea. The pulses from a computer controlled laser vaporizes a portion of the stroma and the flap is replaced. Other techniques are also in use.
The cornea is a part of the eye that can focus light to create an image on the retina. The bending and focusing of light is also known as refraction. The shape of the cornea of the eye and are usually not perfect and the image on the retina is out-of-focus (blurred) or distorted.
These deficiencies in the focusing of the eye are called refractive errors. There are three main types of refractive error: nearsightedness, farsightedness and astigmatism. Persons with myopia, or nearsightedness, have more difficulty seeing distant objects as clearly as near objects. Persons with hyperopia, or farsightedness, have more difficulty seeing near objects as clearly as distant objects. Astigmatism is a distortion of the image on the retina caused by irregularities into the cornea or lens of the eye caused. Combinations of myopia and astigmatism or hyperopia and astigmatism are common.
Glasses or contact lenses are designed to compensate for the imperfections of the eye. Surgical procedures are called for improving the focus of the eye to refractive surgery. With Lasik surgery precise and controlled removal of corneal tissue by a special laser shapes the cornea and changes its focusing power.
Before the Lasik there were other Techniques developed to reshape the cornea, for example, photorefractive keratectomy. Often the exact same laser is used for the two types of operations. The main difference between the two operations by the way, the stroma, the middle layer of the cornea, is exposed before it is vaporized with the laser. In PRK, the top layer of the cornea, the epithelium, is scraped away to expose the stromal layer underneath. In LASIK, a flap in the stromal layer of cut and folded the flap back.
Can someone a Lasik surgery? Most, but not everyone, and certain complications are avoided in a percentage of patients, and there are no long-term data for the current procedures. Some jobs prohibit certain refractive procedures so be sure to check with your employer submit / trade association / military service before all procedures.
Most health insurance will not pay for refractive surgery and the cost is still significant. If the so-called refractive instability, as have young people, you can not have this type of surgery. If you are pregnant or are taking certain medications or diseases such as diabetes, you should not Lasik surgery. In these cases, you should analyze the possible additional risks with your doctor.
About the Author
Keith George always writes about valuable news & reviews.
A related resource is
Lasik
Further information can be found at
Questions & Answers
The Rhizomes Of Life
|
|
Implementation of the Diabetes Practice Guideline in the Army Medical Department: Final Evaluation $22.35 Can the ARmy effectively implement clinical treatment guidelines in its military treatment facilities to achieve consistent and high-quality practices throughout its health system?… |
