Surgical Vision Correction
The most common type of surgical vision correction, due to extensive advertising and promotion, is laser-assisted in situ keratomileusis. Of course, that's not what the advertisers and promoters call the procedure. Instead, it's known by its acronym, LASIK. With this type of laser eye surgery, a corneal flap is lifted, the eye is reshaped, and the corneal flap is replaced. The flap is created with the use of a laser. The eye is reshaped, depending on whether the person is nearsighted (myopia) or farsighted (hyperopia), by using an oscillating blade called a microkeratome. A computer guides the procedure for increased accuracy. In a newer operation, the microkeratome is replaced by a femtosecond laser which has proven to be more accurate. Laser eye surgery is a relatively quick operation that is performed on an outpatient basis. In most cases, the process is over in just a few minutes. But just because the process is simple doesn't mean that it's something to be done on a whim. The use of such unfamiliar terms as microkeratome and femtosecond laser should be enough for most people to realize that this is a serious surgical vision correction procedure that should be thoroughly researched.
Before undergoing surgery, the prospective patient will be required to have an eye evaluation. This allows the surgeon to determine the eye's shape and discuss different options with the patient. An individual may go into the surgeon's office believing that her eyesight will be miraculously transformed to 20/20. For the majority of patients, this is a realistic outcome. However, many individuals may find that their corrected vision is no better than 20/40. This is still acceptable, but not perfect. For a few individuals, perfect vision is an unrealistic expectation. Not even surgical vision correction can end dependence on glasses or contacts for people with very poor eyesight. The procedure may help sharpen visual acuity, but these individuals will still need to wear glasses or contacts. A reputable surgeon will discuss likely outcomes with the prospective patient so a good decision can be made on whether to go ahead with the procedure.
LASIK is not the only type of surgical vision correction. Some patients opt for a no-flap procedure. In photorefractive kertectomy, also known as PRK, an excimer laser is used to reshape the eye. Here again, prospective patients will want to do as much research as possible about the differences in procedures so that they can make the best possible decision. Basically speaking, surgery that takes less time and has less initial discomfort also has greater risk of future complications. A surgery that takes more recovery time often has better long-term results. Prospective patients may be interested in doing a side-by-side comparison of different surgical vision correction options. This comparison, along with the surgeon's recommendations, can help the individual in the decision-making process.
Prospective patients may want to do research on various eye surgeries before consulting a surgeon. There are just so many new terms to learn and they really should know what the words mean. And a prospective patient definitely will want to carefully choose the surgeon that is being entrusted with his sight. Consumer advocates warn individuals to not allow either price or easy financing plans to be determining factor when it comes to selecting a surgeon or eye surgery clinic. One's eyesight is much too important for money to be a primary issue. Wise individuals will look for a physician who has experience in advanced techniques, who answers questions clearly, and who has a broad knowledge of surgical vision correction options. The apostle John records the time when a blind man chose the Great Surgeon to heal his eyes. When asked about his newly-gained sight, John tells us: "He answered and said, A man that is called Jesus made clay, and anointed mine eyes, and said unto me, Go to the pool of Siloam, and wash: and I went and washed, and I received sight" (John 6:11).
There are other surgical vision correction options besides LASIK and PRK. Another type, known as laser thermal keratoplasty, or LTK, is especially for people who are farsighted and forty years of age or older. This technique zaps different places on the cornea to shrink the tissue. When people get to about age forty and older, their eyes don't focus the same as in their younger days. This is a condition known as presbyopia and is the reason that older people wear reading glasses. Some contact lens wearers even find it necessary to wear reading glasses in addition to their contacts to read fine print. Two more procedures are refractive lens exchange and implantable lenses. Anyone who is considering surgery should be aware of all the options instead of focusing only on the advertising hype that surrounds LASIK. Though this surgical vision correction option is the most popular and well-known, and works for many people, prospective patients should see if another option will work better for their individual circumstances. It can't be stressed enough that no procedure can be guaranteed one-hundred percent successful. This isn't a surgery that should be entered into on a whim. Instead, research into different procedures, treatments, surgeons, and clinics should be thoroughly undertaken. A well-informed patient will know the questions to ask and will have realistic expectations of the outcome. Armed with pertinent information and cared for by a respectable and knowledgeable surgeon, this individual will know what decision is best regarding surgery.
Surgery For FarsightednessSurgery for farsightedness can correct the length and curvature associated with the cornea that makes objects far away easier to see and near objects harder to see. Laser vision correction can correct sight by reshaping the cornea. Some procedures are performed on the surface of the cornea and others on the inside of the cornea. A thorough examination from an ophthalmologist can help determine what procedure is best for the patient. This procedure is not only successful for a farsightedness cure but is also a cure for nearsightedness, and astigmatism. Imagine the freedom of no longer having to change contacts or clean eyeglasses. Being able to wake up first thing in the morning and see clearly without having to reach for eyewear.
Radiofrequency keratoplasty devices used radiofrequency to change the shape of the cornea instead of lasers. This is an optional surgery for farsightedness if the extent to the curvature of the cornea isn't extreme. Women who suffer from hyperopia have trouble putting their eye makeup on without having their glasses on or contacts in. A farsightedness cure would simply make this problem go away. Having to wear glasses or contacts when participating in sports can be aggravating due to glasses falling off and contacts causing irritation. Other people do not like wearing glasses because they are self-conscious. Eyewear today is made lightweight and attractive but some people feel that it takes away from their looks. While this is just a matter of opinion, it bothers some individuals enough that they will put up with irritation from contacts over wearing glasses. God's Word helps to put some things into perspective, "The Lord knoweth the thoughts of man, that they are vanity." (Psalm 94:11)
Some of the benefits associated with lasik surgery include a quick recovery period. Minimal discomfort is caused by the procedure and quick vision improvement will be noticed within 24 hours. Surgery for farsightedness can increase the curvature of the cornea to correct the refraction. It is important to let the doctor know about all medications that are being taken and any medical problems that might affect one's eyesight. In order to be a candidate for a farsightedness cure, a person will need to be over 18 years of age and in general good health. An extensive medical and family history will most likely be needed in order for the doctor to make sure the patient is a candidate for surgery. Laser procedures and therapy are also performed on patients with cataracts, in order to remove them. If a patient has a tendency to have dry eyes, the ophthalmologist will need to know since the procedure may worsen this condition.
There is another technology that is used for corrective refractions called Wavefront technology. This technology is recommended for individuals with refractions that are difficult to locate. Wavefront can capture a detailed picture or map of the eye with extreme detail. Some individuals with unusual curvatures may benefit from this type of procedure. There are refraction errors that are not correctable with eyeglasses or contacts that can be corrected through Wavefront technology. This procedure can also be used as a farsightedness cure if the curvature of the cornea is extreme. For those people who aren't able to take advantage of this kind of technology, there are other options. The good thing about advancing technology is that if it isn't possible to take advantage of one procedure, there will be other options eventually.
When contacts first came out there were only contacts for people who were nearsighted. Then as advances were made the market included ones for farsightedness. It was a little while later before contacts came out for those people with astigmatism. The reason for this is because the majority of people are nearsighted so the market tailored the advances in technology to those people first. Now there are contacts that can be implanted inside a person's eyes. Today surgery for farsightedness can include a procedure that includes corrective lens implants. Individuals who aren't good candidates for lasik surgery may want to consider this option. In addition there are contacts on the market now that can be used for up to 30 days before they have to be removed. This provides another option for people who either can't or choose not to have lasik.
Monovision is an option for those people who wish to forego having to resort to reading glasses. Lasik surgery for farsightedness can be performed by correcting one eye for distance and the other eye for close up activities. Wearing the contacts as a trial before undergoing this type of procedure might be best since it is difficult for some people to get use to monovision. Usually within a couple of weeks or so, most people can adjust to monovision and some learn to love it. Monovision can be accomplished with contacts or surgery, but not when wearing eyeglasses.