LASIK Surgery
LASIK (Laser-Assisted In Situ Keratomileusis) is generally used to repair refractive errors, which are typical visual impairments in which the eye fails to properly focus light, resulting in blurred vision. Here are the major reasons why individuals choose LASIK.
Why It's Done
- Vision Correction: LASIK can treat myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. These disorders are caused by imperfections in the shape of the cornea, which can be corrected using LASIK to allow light to focus properly on the retina.
- Reduced Dependence on Corrective Lenses: Many people choose LASIK to minimize or eliminate their need for glasses or contact lenses, giving them more freedom in their daily lives.
- Convenience and Lifestyle: For people with active lives, LASIK offers a major convenience by eliminating the need for glasses or contacts, which can be inconvenient during athletic activities.
- Long-Term Financial Benefits: While LASIK may be expensive at first, it can be a cost-effective solution in the long run when compared to the continuous costs of purchasing glasses and contact lenses.
Procedure Explanation
The LASIK process is a rapid and minimally invasive operation that normally takes 30 minutes for both eyes. Here’s a step-by-step description of the procedure:
- Pre-Surgery Preparation: Prior to surgery, the patient has a complete eye examination to confirm they are a good candidate for LASIK. This includes assessing the cornea’s curvature, pupil size, and refractive error.
- Numbing the Eye: On the day of surgery, numbing eye drops are used to guarantee that the patient is not in pain during the process. The patient stays awake and alert.
- Creating the Flap: Using a microkeratome or femtosecond laser, the surgeon forms a thin, hinged flap on the cornea’s surface. The flap is then lifted, revealing the underlying corneal tissue.
- Corneal Reshaping: Microscopic amounts of corneal tissue are carefully removed using a computer-controlled excimer laser. This reshaping ensures that light entering the eye is appropriately focused on the retina, so correcting the visual impairment.
- Repositioning the Flap: After reshaping the cornea, the surgeon carefully aligns the corneal flap. It binds naturally to the underlying corneal tissue, eliminating the need for stitches.
- Post-Surgery Care: Patients are advised to relax for a brief time following the treatment. They may have slight discomfort, dryness, or blurred vision for a short time. Follow-up visits are scheduled to check the healing process and assure the best results.
- Age: Candidates must be at least 18 years old, as vision may still be evolving in younger people.
- Stable Vision: Candidates should have had stable vision for at least a year prior to surgery.
- Refractive Error: LASIK is effective in correcting myopia, hyperopia, and astigmatism within certain ranges.
- Healthy Eyes: Candidates should not have a history of glaucoma, cataracts, or keratoconus. The corneas must be sufficiently thick to resist the development of the corneal flap.
- General Health: Candidates should have decent general health. Certain medical disorders, like autoimmune illnesses or uncontrolled diabetes, may exclude someone from being eligible for LASIK.
- Myopia (Nearsightedness): Difficulty seeing distant objects clearly due to a bent cornea or a large eyeball.
- Hyperopia (Farsightedness): Difficulty seeing close objects clearly due to a flattened cornea or a short eyeball.
- Astigmatism: Distorted or blurred vision at any distance caused by an unevenly shaped cornea.