Laser eye surgery is a modern line of ophthalmology that allows to permanently solve the problem of poor vision using laser surgery.
Before starting treatment, the doctor conducts a detailed examination to determine whether your eyes are healthy and suitable for laser surgery. If you wear contact lenses , you should stop wearing them for at least two to six weeks before the actual treatment, depending on the type of contact lenses you wear.
In preparation for surgery, the doctor conducts an extensive examination of your eyes before laser treatment in order to accurately determine their health, the thickness of the cornea, as well as the degree of visual defect. As soon as the examination is completed and the day of treatment is scheduled, you are placed on a special laser operating table. Then the doctor will use eye drops to numb your eyes.
In the first step of the procedure, the doctor creates a thin flap in the upper layer of your cornea. During this time, your vision may be briefly interrupted due to an increase in eye pressure. Then the flap folds gently to expose the lower stratum corneum. At this point you can see, but everything will be blurry.Go
For the next step, the doctor will ask you to focus your eyes on the green light. Then the actual laser treatment begins. Due to the high speed of laser surgery, the average treatment time takes only a few seconds.
After the laser operation is completed, the flap returns to its original position, where it fully adheres and works as a natural adhesive plaster. Your eye will now receive antibiotics in the form of eye drops to prevent infections. On this treatment is actually completed.
After the operation, you will already be able to see everything around you much better as your visual acuity has noticeably increased, but for some time your eyes may itch and there will be an increased sensitivity to light. You should try not to strain your eyes, your eyes should rest, and such visual activities as reading or watching TV for the next few hours are highly discouraged while your eyes continue to heal.
Photorefractive keratectomy PRK (PRK)
In photorefractive keratectomy (PRK PRK), the laser is used to remove part of the central cornea after the outer epithelial layer has been moved to the surface. This method is usually used in cases of slight refraction and astigmatism, or even on patients whose corneas are too thin to withstand LASIK. A postoperative course of therapeutic lenses and eye drops is important and lasts for several months.
PRK itself lasts only a few minutes and is performed under local anesthesia. PRK at a time is usually performed on one eye and the patient is ready for work and other activities in a week. Temporary therapeutic contact lenses used in the recovery process can cause itching, tearing, and pain in the operated eye, and blurred vision also occurs to varying degrees of severity. After the lenses are removed permanently and clarity gradually improves and stabilizes after a few months.
For those patients who cannot qualify as candidates for LASIK surgery, there is another solution for improving vision in the form of IOL (intraocular lens) implantation. There are many possible causes for this, including refractive disorders or the presence of conditions and problems, such as glaucoma, infection, extreme dryness of the eye, or cataracts.
For these patients, the real alternative to vision correction with an excimer laser is the surgical implantation of intraocular lenses (IOLs) in the eyes in order to improve vision and reduce dependence on glasses or contact lenses. An IOL is like a miniature lens inserted into the eye to correct impaired refraction. Intraocular lenses can be additionally implanted while maintaining the natural lens (the so-called phakic IOL) or the natural lens can be replaced completely.