Last Updated on September 2, 2026 by Aaron Barriga
Initially thrilled with the results of LASIK surgery, many find the freedom from glasses and contact lenses to be a remarkable improvement in their daily lives. However, for some, in rare cases, this satisfaction is short-lived. Some may notice their vision isn’t as sharp as it once was and begin to wonder if LASIK can be performed a second time.
Quick Answer
Yes, you can get LASIK twice through a procedure called LASIK enhancement or retreatment. It’s uncommon though, since only about 1-2% of patients need it within the first year and roughly 5% ever need it in their lifetime. Eligibility depends on sufficient corneal thickness, a stable prescription for at least 12 months, and healthy corneal flap condition, so a pre-LASIK evaluation is required.
Can LASIK be Done Twice?
Yes, you can get LASIK surgery twice, also known as the LASIK retreatment or enhancement procedure. While you can get LASIK twice, it’s highly uncommon for patients to need it again, and only approximately 1% to 2% of previous LASIK treatment patients get an enhancement within the first year of the treatment, and about 5% get it again in their lifetime. About a majority of the patients only need one LASIK procedure for improved vision.
What are the Reasons to Get LASIK Twice?
As mentioned above, people usually do not have to get LASIK done more than once; it entirely depends on your vision’s health and the stability of your vision. There are several reasons that people may have to get LASIK done more than once in their lifetime. Here are some known reasons why:
1. Regression
Changes in the healing process or eye structure post the first LASIK surgery can cause regression in your vision over time. Sometimes, due to this regression, you may have to get LASIK done again to correct your vision.
2. Residual Refractive Error
It may so happen that following an initial LASIK procedure, a residual refractive error such as myopia (nearsightedness), hyperopia (farsightedness), or astigmatism may persist.
3. Aging
As you age, your eyesight undergoes gradual changes, typically shifting by about 1% on an annual basis. Consequently, nearly a decade after undergoing LASIK, your vision might differ by approximately 10 percent. Most people experience age-related nearsightedness, or presbyopia, around age 45. This condition, which makes close-up reading challenging and often necessitates reading glasses, is neither caused nor corrected by LASIK. If you had LASIK before developing presbyopia, you might consider Monovision LASIK, an enhancement surgery to address this new condition.
4. LASIK Surgery Complications
In rare circumstances, complications may develop during your initial LASIK surgery, impacting your vision. To correct this complication, a second LASIK surgery may be required.
5. Pregnancy
Pregnancy can influence various aspects of eye health and vision, but may not directly influence your need for LASIK enhancement. But here’s how pregnancy may indirectly affect women’s vision:
- Hormonal Changes: Pregnancy can cause hormonal fluctuations that may lead to temporary changes in vision. These changes can include altered corneal thickness and shape, dry eyes, and fluctuations in prescription. Because these changes are often temporary, it’s recommended to wait until postpartum to assess the stability of vision before considering any surgical intervention.
- Postpartum Period: It is generally recommended to wait several months after giving birth and after breastfeeding is completed to allow hormonal levels to return to normal and for vision to stabilize before considering any refractive surgery.
- Vision Stability: For LASIK surgery to be successful, the patient’s vision should be stable. During pregnancy and breastfeeding, vision can fluctuate, making it difficult to determine a stable prescription. Therefore, ophthalmologists usually advise against undergoing LASIK surgery or a second LASIK procedure during this period.
Learn more about Pregnancy & Vision: Can You Get LASIK While Expecting?
6. Cataracts
The development of cataracts in seniors after the first LASIK surgery may also be a reason for getting LASIK enhancement done. But one thing to note is that in such situations, vision may be mostly affected by cataracts, and LASIK enhancement may not correct your vision. In such situations, you will need cataract surgery.
Lasik Surgery Touch-Up Or Enhancement
Over 90% of patients who undergo LASIK surgery successfully recover from their vision problems, with only 1 to 5% requiring a LASIK enhancement. This enhancement involves a touch-up laser treatment, where the corneal flap is lifted again, and additional laser correction is applied to address any residual vision issues. This is not considered a failure of the initial LASIK surgery but rather a variation in how the cornea responds to healing after laser treatment. When performed a second time, LASIK enhancements yield excellent and predictable results compared to other surgical procedures.
A pre-LASIK evaluation is necessary before undergoing a LASIK enhancement to determine the feasibility of the touch-up treatment. In some cases, the corneal thickness may be insufficient, making an enhancement impossible. During the pre-LASIK check, it is crucial to assess whether the cornea is of adequate thickness; if it is too thin, a second LASIK procedure cannot be performed.
Am I a Candidate for a Second LASIK?
Not everyone who wants a LASIK enhancement is eligible for one. Your surgeon will evaluate several key factors before determining if a second procedure is right for you:
- Sufficient Corneal Thickness – This is the most critical factor. Each LASIK procedure removes a layer of corneal tissue, so there must be enough remaining thickness to safely perform another ablation without compromising the structural integrity of the eye.
- Stable Vision Prescription – Your prescription must have been stable for at least 12 months before considering an enhancement. If your vision is still changing, a second LASIK will not produce lasting results.
- It Has Been at Least 3 Months Since Your First LASIK – The eye needs adequate time to heal and stabilize after the initial surgery. Most surgeons recommend waiting a minimum of 3 months, and sometimes up to a year, before evaluating the need for an enhancement.
- Residual Refractive Error is Present – You must have a measurable remaining prescription — such as myopia, hyperopia, or astigmatism — that is significant enough to warrant surgical correction rather than being manageable with glasses or contacts.
- No Significant Dry Eye Issues – Chronic or severe dry eye is a contraindication for LASIK enhancement, as the surgery can worsen the condition. Your surgeon will assess your tear production and ocular surface health before proceeding.
- Healthy Corneal Flap – The original flap created during your first LASIK must be in good condition. If the flap shows signs of irregular healing, scarring, or complications, lifting it again may not be safe — and an alternative like PRK may be recommended instead.
- No Signs of Corneal Ectasia or Keratoconus – If your cornea shows any signs of weakening, bulging, or early keratoconus since the first surgery, you will not be a candidate for a second LASIK. In such cases, corneal cross-linking may be explored first.
- Overall Eye Health – You should be free from active eye infections, inflammation, glaucoma, or any other condition that could impair healing or increase surgical risk.
How Many Times Can You Get LASIK?
In general, there is no set limit on the number of times someone can have LASIK eye surgery. The primary considerations for being a candidate for a LASIK enhancement usually involve the overall health of your eyes, the stability of your vision, and the reasons for contemplating an additional procedure.
Risks of Getting LASIK a Second Time
While LASIK enhancement is generally safe and effective, it does carry a slightly higher risk profile compared to the first procedure. Being informed about these risks helps you make a confident decision with your surgeon:
- Further Reduction in Corneal Thickness: Each procedure removes additional corneal tissue. If the cornea becomes too thin, it can weaken over time, increasing the risk of a condition called corneal ectasia, where the cornea gradually bulges outward.
- Dry Eye Syndrome: Dry eyes are one of the most common side effects of any LASIK surgery, and the risk is amplified with a second procedure. Some patients experience chronic dryness that requires long-term management with eye drops or other treatments.
- Flap Complications: Lifting the original corneal flap a second time introduces risks such as flap tears, irregular edges, or incomplete lifting. In some cases, the flap may not re-adhere properly after the procedure.
- Undercorrection or Overcorrection: As with the first surgery, the eye may not respond to the laser exactly as expected, resulting in residual or new refractive error. The margin for precise correction can be smaller the second time due to reduced tissue availability.
- Increased Risk of Halos and Glare: Visual disturbances such as halos, starbursts, and glare, particularly in low-light conditions, can be more pronounced after a second LASIK, especially if the optical zone of the cornea has been reduced.
- Slower or Irregular Healing: The cornea may not heal as predictably the second time around. Some patients experience a longer recovery period or minor surface irregularities during the healing process.
- Reduced Effectiveness Over Time: A second LASIK enhancement may not deliver the same longevity as the first procedure, particularly in patients whose vision continues to change due to aging or other systemic factors.
What Type of Procedure is Required to Repeat LASIK Surgery?
The protocol for performing a repeat LASIK surgery hinges on the residual corneal bed thickness beneath the flap and the type of initial procedure used.
- Excimer Laser Ablation: If the remaining corneal bed is adequately thick, the excimer laser can be utilized for ablation to adjust the vision. If the corneal bed is insufficiently thick, alternative methods are considered.
- Surface Ablation: In this technique, the flap is not lifted. Instead, the laser is applied directly to the corneal surface. This approach is suitable for cases with thinner corneas where conventional touch-ups on the underlying bed aren’t feasible. Patients are prescribed antibiotics to prevent eye infections. Although LASIK can be performed more than twice, it is typically unnecessary, as the initial surgery corrects over 95% of patients’ vision, making subsequent surgeries rarely required.
What is the Ideal Time Required Between LASIK Treatment and LASIK Enhancement?
The key to effectively enhancing LASIK surgery lies in the interval between the initial procedure and the follow-up touch-up treatment. Enhancement should only be considered once the eye’s residual power has stabilized post-surgery. Consequently, a waiting period of 2-3 months is recommended before undergoing enhancement treatment.
Occasionally, blurred vision may persist after the initial surgery, often resolving within a few weeks. Therefore, it is premature to assume that the initial surgery was unsuccessful if clear vision has not yet been achieved. A touch-up LASIK or enhancement procedure can be performed if vision does not improve within a few months.
Bottom Line
LASIK surgery is one of the most reliable surgeries for correcting your vision and removing your eye prescription. However, even the best things have exceptions. While most LASIK cases won’t need a second chance, some are rare, and you might need to get LASIK enhancement. It’s always best to consult your ophthalmologist.
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Dr. Azhar I. Salahuddin is an ophthalmologist and is fellowship-trained in cornea, external diseases, and refractive surgery. Dr. Salahuddin has been performing cataract surgery for over 19 years and specializes ocular reconstruction, corneal transplantation surgery as well as vision correction through a variety of intraocular lenses. Dr. Salahuddin is board-certified by the American Board of Ophthalmology and was trained at Boston University.
