LASIK for Astigmatism – How Does The Treatment Work?

Astigmatism is a refractive error caused by an irregularly shaped cornea or lens. In a normal eye, the cornea and lens are evenly curved, allowing light to focus properly on the retina. However, in astigmatism, the cornea or lens has an uneven curvature, causing light to scatter and resulting in blurred or distorted vision. This condition can occur alongside other refractive errors like myopia (nearsightedness) or hyperopia (farsightedness).

• Common symptoms of astigmatism include:
• Blurred or distorted vision
• Eyestrain or discomfort
• Headaches
• Difficulty with night vision
• Frequent squinting

LASIK (Laser-Assisted in Situ Keratomileusis) is a popular and effective surgical procedure used to correct refractive errors, including astigmatism. It reshapes the cornea, allowing light to focus correctly on the retina, thereby improving vision.

1. Preparation and Anesthesia: Before the procedure, the surgeon will conduct a comprehensive eye examination to determine if the patient is a suitable candidate for LASIK. On the day of the surgery, the patient receives numbing eye drops to ensure comfort during the procedure.
2. Creating the Corneal Flap: The surgeon uses a femtosecond laser to create a thin, hinged flap in the cornea. This flap is gently lifted to expose the underlying corneal tissue.
3. Reshaping the Cornea: An excimer laser is then used to reshape the cornea. For astigmatism, the laser specifically targets the areas of the cornea that are uneven, smoothing out the irregularities to allow light to focus properly on the retina.
4. Repositioning the Flap: After the cornea has been reshaped, the surgeon carefully repositions the corneal flap. It naturally adheres to the underlying corneal tissue without the need for stitches.
5. Recovery: The corneal flap acts as a natural bandage, promoting faster healing. Patients are typically advised to rest and avoid strenuous activities for a few days following the surgery. Most people notice an improvement in their vision within a few days, with full recovery occurring over several weeks.

Yes, LASIK can effectively correct astigmatism by reshaping the cornea to a more regular form. This allows light to focus correctly on the retina, significantly improving vision. Most patients experience a marked improvement in their vision and no longer need glasses or contact lenses for daily activities.

The cost of LASIK for astigmatism can vary depending on several factors, including the surgeon's experience, the technology used, the geographical location of the clinic, and the extent of the correction needed. On average, the cost ranges from $2,000 to $3,500 per eye. It's important to note that many insurance plans do not cover LASIK as it is considered an elective procedure. However, some clinics offer financing options or payment plans to make the procedure more affordable.

1. Surgeon's Experience: Highly experienced surgeons may charge more for their expertise and the success rates they offer.
2. Technology Used: Advanced laser technologies, such as femtosecond lasers and wavefront-guided LASIK, may come at a higher cost but often provide better outcomes.
3. Clinic Location: Clinics in metropolitan areas or regions with a higher cost of living may charge more for the procedure.
4. Extent of Correction: The severity of astigmatism and any additional refractive errors can impact the overall cost of the surgery.

During the Procedure

LASIK surgery is relatively quick, usually taking about 15 minutes per eye. The actual time spent under the laser is typically less than a minute. Patients remain awake during the procedure, but the numbing eye drops ensure they do not feel any pain. Some patients may experience slight pressure on the eye when the corneal flap is being created.

After the Procedure

Immediately after the surgery, patients might experience:

• Blurred vision
• Mild discomfort or irritation
• Light sensitivity
• Watery eyes

These symptoms usually subside within a few days. The surgeon will provide specific post-operative care instructions, including using prescribed eye drops to prevent infection and inflammation, and avoiding activities that could strain the eyes.

Recovery Timeline

• First Few Days: Vision may be blurry, and eyes may feel dry. It's essential to avoid rubbing the eyes.
• First Week: Most patients can return to work and resume normal activities, although they should avoid strenuous exercise and swimming.
• First Month: Vision continues to stabilize. Follow-up appointments with the surgeon will ensure proper healing.
• Three to Six Months: Full recovery and the final vision outcome are typically achieved within this period.

1. How long does LASIK surgery take?

The entire LASIK procedure usually takes about 15 minutes per eye, with the laser treatment itself lasting only a few seconds to a minute.

2. Is LASIK painful?

No, LASIK surgery is not painful. Patients receive numbing eye drops to prevent any discomfort during the procedure. Some may experience mild pressure on the eye, but it is not painful.

3. How long is the recovery time after LASIK?

Most patients notice an improvement in their vision within a few days, with full recovery typically occurring over several weeks. However, individual recovery times can vary.

4. Are there any risks or side effects associated with LASIK?

As with any surgical procedure, LASIK carries some risks, including dry eyes, glare, halos, and in rare cases, infection or vision loss. However, serious complications are uncommon, and the procedure is generally considered safe.

5. Can LASIK correct other vision problems besides astigmatism?

Yes, LASIK can also correct other refractive errors such as myopia (nearsightedness) and hyperopia (farsightedness), often in conjunction with astigmatism.

LASIK for astigmatism is a highly effective treatment that can significantly improve vision and reduce the need for glasses or contact lenses. By understanding the procedure, costs, and recovery process, patients can make informed decisions about their eye care. If you're considering LASIK for astigmatism, consult with an experienced ophthalmologist to determine if you're a suitable candidate and to discuss the best options for your vision needs.