PRK Eye Surgery
PRK laser eye surgery can be used to correct nearsightedness, farsightedness, and astigmatism by removing surface cells of the cornea. Traditional laser correction works on the tissue within the cornea by using a computer to control pulses. PRK eye surgery stands for photo refractive keratectomy, a type of surgery that is recommended for some individuals based upon the makeup of the eye's anatomy. This procedure requires removal of some surface cells within the cornea without blades and may be more painful than traditional laser surgery. Many people want the freedom of being able to see without the use of glasses or contacts. Advances in technology have made this possible and technology is continuing to provide individuals with options over using eyewear.
There are multiple procedures available for correcting vision and an ophthalmologist will want to perform an examination in order to recommend which procedure will work best for the patient. PRK laser eye surgery may seem a little dangerous when thinking about what is actually being done to the eye, but choosing a specialist that is experienced will help to set one's mind at ease. To be eligible for the procedure, patients must be in good health with no major health problems that affect vision. Illnesses that can affect vision include diabetes, rheumatoid arthritis, overactive thyroid, hardening of the arteries, high blood pressure, leukemia, among others. An ophthalmologist will need to know all the medicines that are taken by the patient because certain prescription drugs can affect vision. Viruses in the body can also affect vision including, herpes virus, and syphilis infections.
Using a high-powered telescope, an ophthalmologist can capture tiny imperfections within the cornea. The data is fed into the laser to develop an individualized treatment plan. The technology can be used to customize PRK eye surgery and correct the tiniest vision problem. Some of the imperfections with vision are not correctable by using glasses or contacts but customizable procedures can improve vision to the smallest detail. PRK laser eye surgery does not require any injections but drops that contain anesthesia are used to numb the eye before the procedure is done. Healing time for photo refractive keratectomy is longer than traditional laser correction because of the location of the correction within the cornea. Improvements in vision may be more gradual than traditional procedures.
Ophthalmologist will usually require that the candidate for a procedure have a stable vision prescription for at least one year. Young adults may experience changes as they mature so doing PRK eye surgery too soon might mean that it will have to be done again later. Since hormonal changes can affect sight, most specialists won't perform the procedure on women who are pregnant. Candidates that have extremely dry eyes are not good candidates because the procedure can make this condition worse. Those who have undesirable risks to PRK laser eye surgery might want to consider implantable lenses. Implantable lenses are surgically implanted within the cornea altering the way light rays enter the eye. At this time implantable lenses can only be used for candidates who are near-sighted.
The options today for improving sight are very promising as research continues to make new options available. Even patients with eye problems such as glaucoma, macular degeneration, cataracts, and other diseases can benefit from new technology. It can be very discouraging to not be able to take advantage of current PRK eye surgery because of an illness but there may be other options for individuals who suffer with these kinds of problems. Fear of trying something new can make one apprehensive. Trusting in God and having the faith in Him to guide one down the best path in life can bring rejoicing. "For our heart shall rejoice in Him, because we have trusted in His holy name" (Psalm 33:21). God's Word offers great and precious promises that give His children hope and peace in the midst of life's troubles and uncertain circumstances. If one procedure isn't the answer, consider some of the other options available to achieve better sight.
People who are skeptical about having vision corrective surgery may want to consider other options to correct vision. Some of the contact lens technology today has created a lens made of a substance that makes it possible to wear them up to 30 days without taking them out. This provides some freedom and flexibility but not as much as prk eye surgery would provide. It is also important to consider that corrective procedures won't correct deterioration of focusing abilities associated with aging. Even after a corrective procedure it may still be necessary to wear reading glasses. If the patient decides to try monovision, then reading glasses might be eliminated. Monovision means that one eye is corrected for distance and the other is corrected for reading or close up work. Monovision can be simulated with contacts before PRK laser eye surgery is performed, so the patient can see if it is a desirable option.
Recovery From Eye SurgeryRecovery from lasik surgery requires an extremely short amount of time and most patients see an immediate improvement the same day of surgery. Lasik surgery is the most popular form of vision surgery today and is becoming more affordable with a growing number of clinics available around the country. This type of procedure uses a laser beam to permanently alter some part of the cornea that is not functioning properly. The most common problems that respond to lasik techniques are farsightedness, astigmatism and nearsightedness. The surgical procedure applies a laser beam to the cornea to reshape and remove tissue from the eye. Afterward, it is relatively painless and has a high rate of success with doctors who have mastered the procedure through hundreds of operations.
Not every one is a candidate for the procedure since there are so many different types of vision problems that occur. However, the success rate as well as the general time of recovery from eye surgery has made lasik very appealing to many prospective patients. "The Lord openeth the eyes of the blind: the Lord raiseth them that are bowed down: the Lord loveth the righteous." (Psalm 146:8) While a laser operation can correct vision problems for those that are nearsighted, astigmatic and farsighted, the most successful operations are by far those associated with nearsightedness. This procedure is more conducive to reshaping the elongated eye that has a problem seeing at a distance. Many patients that are nearsighted report an amazing improvement of 20/20 vision and sometimes even as much as 20/15. Farsightedness is a bit more difficult to correct since the eye is too short and causes images to be seen too far behind the retina. The recovery from lasik surgery is still the same for nearsightedness as it is for farsightedness while the success rate may not be quite as astounding.
Astigmatism is the other common problem that can require corrective surgery in order to improve vision. Astigmatism is a typical problem for many people and a large portion of the population has the problem in varying degrees. Blurred vision is the common symptom of this problem and people who have astigmatism do not see clearly at any distance. There are different types of lasers used for surgeries and an operation for astigmatism requires a technique that will reshape the cornea so that it is more round rather than oblong.
An operation that is performed by a laser technique is generally safe and quite effective for patients that fit into the typical categories of vision problems. The procedure is not painful at any time including the actual operation itself. An eye is numbed with drops that allow a surgeon to perform the procedure quickly and harmlessly. Most patients are not sedated unless they specifically request it and will not feel bad after the procedure. A typical procedure may take as little as ten minutes and recovery from eye surgery is relatively unnoticed. Drops are suggested to be applied within the first 24 hours after the procedure. Avoidance of dust, smoke and other irritants are also strongly suggested. Rest is also advised after surgery, so it may be wise for anyone undergoing the procedure to plan to take off a full day of work. Most patients can return to work or other activities the following day.
Surgery can be performed on both eyes the same day although some doctors prefer to operate on one at a time. When the operation was newer on the horizon, many doctors opted to allow full recovery from lasik surgery before performing the procedure on the other eye. The theory was that in case an operation encountered problems to the one eye, the other would not be affected. In recent years, however, most doctors will perform the operation on both eyes in one day because of the proven success and short rate of recovery from eye surgery over the years. As with any type of medical treatment, there are possible side effects that must be considered before choosing to have a corrective procedure. Some of the most common side effects include dryness and glare even after a full recovery.
A few patients have experienced the sensation that feels like a speck of dust or debris is in the eye. Although these side effects are the most common, they still only occur in a handful of patients who experience an otherwise full recovery from lasik surgery. Other more serious side affects that have occurred in a few patients include infections, thinning of the cornea and diminished results with time after an operation. There are varying opinions among eye doctors as well regarding the procedure in cases where a patient may be susceptible to future cataracts. Changing the shape of the cornea can cause certain risk factors that relate to sight in older patients who may need cataract operations. Even though the recovery from eye surgery may be positive for these patients, it may not be the best choice for anyone who may need cataract surgery later on. Check online for more information regarding the newest techniques and medical advances that continue to make the lasik procedure one of the most sought after corrective eye operations in this decade.