Contents:
- Medical Video: Cataract Surgery (2009)
- Types of surgery to correct the eyes
- 1. LASIK
- 2. PRK (photorefractive keratectomy)
- 3. LASEK (laser epithelial keratomileusis)
- 4. RLE (refractive lens exchange)
- 5. Epi-LASIK
- 6. PRELEX (presbyopic lens exchange)
- 7. Intacs
- 8. Phakic intraocular lens implants
- 9. AK or LRI (astigmatic keratotomy)
- 10. RK (radial keratotomy)
Medical Video: Cataract Surgery (2009)
Many people think that LASIK (laser-assisted in situ keratomileusis) is the only type of refractive surgery to improve eye health. However, there are actually various types and variations of LASIK and other refractive surgical procedures that you can choose from. Refractive surgery is also known as corrective eye surgery, which uses several procedures designed to restore and correct errors in eye bias, including nearsightedness, farsightedness, and astigmatism. In each of these procedures, a laser is used to reshape the cornea by changing the way light beam enters the eye to achieve focus.
Types of surgery to correct the eyes
1. LASIK
Eye surgery is used to improve vision in people with nearsightedness, farsightedness, or astigmatism. During LASIK surgery, vision is corrected by reshaping the underlying corneal tissue, so that it can focus light into the eye and into the retina. What is different from LASIK eye surgery is that it makes it flap in the outer layer of the cornea, so that the underlying tissue can be accessed. LASIK is also done with the addition of computer imaging called technology wavefront to make detailed images of the cornea and medication guide.
2. PRK (photorefractive keratectomy)
This eye surgery is used to correct farsightedness, farsightedness, or mild to moderate astigmatism. During PRK surgery, the eye surgeon uses a laser to reshape the cornea. Lasers that provide cool emission from ultraviolet light are used on the surface of the cornea, not below flap cornea as in LASIK. PRK can also be done with corneal imaging on a computer.
3. LASEK (laser epithelial keratomileusis)
This is a type of eye surgery related to PRK. Flap the epithelium is made and then the epithelial cells are loosened using an alcohol solution. A laser is used to reshape the cornea, then flap replaced and protected by soft contact lenses during recovery. LASEK surgery is used to treat farsightedness, farsightedness, and astigmatism.
4. RLE (refractive lens exchange)
RLE is identical to eye surgery performed for cataracts by making small incisions on the edge of the cornea to remove the natural lens of the eye and replace it with silicone or plastic lenses. RLE is used to correct farsightedness or extreme nearsightedness. Maybe this is appropriate for someone with a thin cornea, dry eyes, or other corneal problems. To correct cylindrical, a LASIK operation or other LASIK method can be combined with RLE.
5. Epi-LASIK
In this procedure, a very thin layer of cells will be separated from the cornea and the inside of the cornea reshaped with a laser excimer. Depending on the method chosen, thin layers can be left or replaced. Areas that have been operated on will be given soft contact lenses temporarily during healing.
6. PRELEX (presbyopic lens exchange)
This is a method in which multifocal lenses are implanted to correct presbyopia (a condition in which the eyepiece loses flexibility, so it will be difficult to focus on a close object).
7. Intacs
This eye surgery is also known as ICR (intracorneal ring segments) This method involves a small incision in the cornea and placing two crescent-shaped plastic rings on the outer edge or on the cornea, thereby changing the way light rays focus on the retina. ICR has been used to treat farsightedness and mild nearsightedness, but it has been replaced by a laser-based procedure. Irregular cornea which is a form of keratoconus (a condition that causes loss of vision due to thinning and irregularities in the cornea) is the most common condition treated with intacs.
8. Phakic intraocular lens implants
This eye surgery is designed for nearsighted patients who cannot be treated by LASIK and PRK. Phakic implants are inserted through a small incision on the edge of the cornea and attached to the iris or inserted into the back of the pupil. This procedure is different from RLE, because it keeps the natural lens of the eye in place.
9. AK or LRI (astigmatic keratotomy)
This is not a laser eye surgery, but a surgical operation used to correct astigmatism. Corneas of people who have astigmatism are usually shaped like footballs. AK or LRI corrects astigmatism by making one or two incisions in the steepest part of the cornea. This incision makes the cornea more relaxed and rounder. This eye surgery can stand alone or be combined with PRK, LASIK, or RK.
10. RK (radial keratotomy)
This is an eye surgery that was often used as a procedure to correct farsightedness. However, due to the development of more effective laser eye operations, such as LASIK and PRK, currently RK is rarely used and is considered an outdated procedure.
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