How is Lasik done?
LASIK (Laser-Assisted In Situ Keratomileusis) is a widely performed refractive surgical procedure used to correct vision problems such as nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. Here's a step-by-step explanation of how LASIK is typically done:
1. Preoperative Evaluation: Before scheduling LASIK, you will undergo a comprehensive eye exam to determine if you are a suitable candidate for the procedure. The eye doctor will assess your vision, corneal thickness, pupil size, and overall eye health.
2. Preparation: On the day of the surgery, your eyes will be numbed with anesthetic eye drops to ensure comfort during the procedure.
3. Creating the Corneal Flap: Using a specialized surgical instrument called a femtosecond laser or a mechanical microkeratome, a thin, hinged flap is created on the surface of the cornea (the clear outer layer of the eye). This flap is temporarily lifted to access the underlying corneal tissue.
4. Reshaping the Cornea: An excimer laser is then used to reshape the cornea beneath the lifted flap. The laser emits precise pulses of ultraviolet light that sculpt the corneal tissue, correcting the refractive error. This step is guided by detailed measurements and calculations made during the preoperative assessment.
5. Replacing the Corneal Flap: Once the corneal reshaping is complete, the surgeon carefully repositions the corneal flap back into its original position. The flap acts as a natural bandage and usually adheres to the underlying corneal tissue without the need for stitches.
6. Post-Operative Care: After the procedure, you will be given protective shields or goggles to wear over your eyes to safeguard them during the initial healing phase. Your vision may be blurry or hazy immediately after the surgery, but it typically improves over the following days and weeks.
It's important to note that LASIK is a highly specialized procedure and should be performed by experienced ophthalmologists or refractive surgeons. Proper patient selection, advanced technology, and meticulous surgical techniques are crucial for achieving successful outcomes. Regular follow-up appointments with your eye doctor are essential to monitor the healing process and assess the results of the procedure.