LASIK Surgery: Meaning and Overview
What is LASIK Surgery?
LASIK (Laser-Assisted In Situ Keratomileusis) is a popular and effective surgical procedure designed to correct common vision problems such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. The procedure involves reshaping the cornea, which is the clear front part of the eye, to improve how light rays are focused onto the retina.
How LASIK Works
- Preoperative Evaluation: Before undergoing LASIK, candidates undergo a comprehensive eye exam, including measuring corneal thickness, pupil size, and mapping the eye’s surface.
- Creating a Flap: In LASIK, a thin flap is created in the cornea using a microkeratome or a femtosecond laser. This flap is lifted to expose the underlying cornea.
- Reshaping the Cornea: The surgeon uses an excimer laser, which emits cool ultraviolet light, to precisely remove microscopic amounts of corneal tissue. This reshaping alters the cornea’s curvature, allowing for better light focus on the retina.
- Repositioning the Flap: After the cornea has been reshaped, the flap is carefully placed back in position where it adheres naturally without the need for stitches.
Benefits of LASIK
– Quick recovery time, often allowing patients to resume normal activities within a day.
– Minimal discomfort during and after the procedure.
– Long-lasting results, with many patients achieving 20/25 vision or better.
Considerations and Candidates
Not everyone is a suitable candidate for LASIK. Factors such as age, eye health, and the degree of vision correction required are taken into account. Patients with thin corneas, certain autoimmune diseases, or severe dry eye may be advised against the procedure.
Risks and Side Effects
While LASIK is generally safe, it carries potential risks, including dry eyes, glare, halos, or under/overcorrections. It’s important for candidates to discuss these risks with their ophthalmologist.
Conclusion
LASIK surgery is a well-established option for individuals seeking a lasting solution to refractive vision problems. With advancements in technology, the procedure has become safer and more effective, giving millions of people the freedom from glasses and contact lenses. If you’re considering LASIK, a thorough consultation with an eye care professional is essential to determine your suitability and to discuss the potential benefits and risks involved.
By understanding the meaning and process of LASIK surgery, individuals can make informed decisions about their vision correction options.