Can Laser Eye Surgery Correct Severe Myopia?

Laser eye surgery is a widely performed procedure that corrects common vision problems such as nearsightedness, farsightedness, and astigmatism. By reshaping the cornea, the surgery allows light to focus correctly on the retina, resulting in clearer vision. The procedure is quick, often completed in under 30 minutes, and provides long-term benefits. If you’re considering laser eye surgery, understanding the process can help you feel more prepared. Here’s a detailed breakdown of what happens before, during, and after the surgery.

Before the Surgery: Preparation and Evaluation

Before the procedure, your ophthalmologist will perform a comprehensive eye exam to determine if you’re a suitable candidate. This includes:

• Measuring the thickness and curvature of your cornea
• Checking for any underlying eye conditions
• Creating a detailed map of your eye’s surface using advanced imaging technology

On the day of the surgery, you will be advised to avoid wearing makeup, lotions, or perfumes to prevent contamination. Once at the clinic, numbing eye drops Laser eye surgery will be applied to ensure you don’t feel pain during the procedure. You may also receive medication to help you relax.

During the Surgery: Step-by-Step Process

1. Creating the Corneal Flap

For LASIK (Laser-Assisted in Situ Keratomileusis), the first step involves creating a thin flap on the cornea. This is done using either a microkeratome blade or a femtosecond laser. The flap is then lifted to expose the inner corneal tissue.

In PRK (Photorefractive Keratectomy), an alternative laser eye surgery, no flap is created. Instead, the outer layer of the cornea (epithelium) is gently removed. This layer naturally regenerates over time.

2. Reshaping the Cornea

With the cornea exposed, an excimer laser is used to reshape it according to your vision correction needs. This step is highly precise and takes less than a minute per eye. The adjustments depend on your specific refractive error:

• For nearsightedness (myopia): The cornea is flattened.
• For farsightedness (hyperopia): The cornea is steepened.
• For astigmatism: The cornea is reshaped to improve focus.

A sophisticated eye-tracking system ensures accuracy, adjusting for any small eye movements during the procedure.

3. Repositioning the Flap or Applying a Protective Lens

In LASIK, the corneal flap is carefully repositioned, where it naturally adheres without stitches. In PRK, since no flap is created, a protective contact lens is placed over the eye to aid healing.

After the Surgery: Recovery and Healing

Immediately after the procedure, your vision may be blurry, but this usually improves within a few hours. Some temporary side effects may include:

• Mild discomfort or irritation
• Dry eyes
• Sensitivity to light

Your doctor will prescribe medicated eye drops to prevent infection and reduce inflammation. You’ll also receive post-surgery care instructions, including avoiding eye rubbing, swimming, and strenuous activities during recovery. Most patients experience noticeable vision improvement within 24 to 48 hours, though full recovery may take a few weeks. Follow-up appointments will ensure proper healing and optimal results.

Laser eye surgery is a safe and effective method for vision correction with minimal downtime. By understanding the process, you can feel more confident about the procedure. If you’re considering laser eye surgery, consult an experienced ophthalmologist to determine if it’s the right option for you.