LASIK

Definition

LASIK, or Laser-Assisted In Situ Keratomileusis, is a popular surgical procedure that corrects vision by reshaping the cornea using a laser. It aims to reduce dependence on glasses or contact lenses for individuals with refractive errors like myopia, hyperopia, and astigmatism. The procedure is widely recognized for its speed and effectiveness, making it a preferred choice in the field of laser ophthalmology.

5 Must Know Facts For Your Next Test

1. LASIK typically takes about 10 to 15 minutes per eye and can lead to immediate improvements in vision.
2. The procedure involves creating a thin flap in the cornea, which is lifted to allow the laser to reshape the underlying tissue.
3. Most patients experience minimal discomfort during and after the procedure, with many able to return to normal activities within a day.
4. LASIK has a high success rate, with over 90% of patients achieving 20/25 vision or better after surgery.
5. Candidates for LASIK must be at least 18 years old, have stable vision for at least one year, and meet specific eye health criteria.

Review Questions

• How does LASIK improve vision through the reshaping of the cornea?
  • LASIK improves vision by reshaping the cornea to better focus light onto the retina. During the procedure, a laser is used to remove precise amounts of corneal tissue, correcting refractive errors such as myopia, hyperopia, and astigmatism. By altering the curvature of the cornea, LASIK allows for clearer vision without reliance on corrective lenses.
• Discuss the advantages and potential risks associated with LASIK surgery.
  • LASIK surgery offers several advantages, including rapid recovery time, minimal discomfort, and significant improvement in vision for many patients. However, potential risks include dry eyes, glare, halos around lights, and in rare cases, complications that may require further treatment. It's essential for candidates to thoroughly discuss these factors with their eye care professional to make an informed decision.
• Evaluate how advancements in wavefront technology have enhanced LASIK procedures and patient outcomes.
  • Advancements in wavefront technology have significantly improved LASIK procedures by enabling personalized treatment plans tailored to each patient's unique eye characteristics. This technology creates detailed maps of the eye's surface irregularities, allowing for more precise corrections than traditional methods. As a result, patients often experience better visual outcomes and fewer side effects, demonstrating how innovation can enhance surgical efficacy and safety in laser ophthalmology.

Related terms

Refractive Surgery: A type of surgery aimed at correcting common vision problems by reshaping the cornea to improve how light rays are focused onto the retina.

Cornea: The transparent front part of the eye that covers the iris and pupil, playing a crucial role in focusing vision.

Wavefront Technology: An advanced diagnostic method used in LASIK that maps the unique imperfections of a patient’s eye, allowing for personalized laser treatment.