No, eye power typically does not increase after LASIK surgery for the majority of patients.
However, there are certain factors, such as your baseline eye condition, ageing, or lifestyle, that can influence long-term outcomes and occasionally result in changes to vision over time.
LASIK (Laser-Assisted in Situ Keratomileusis) has become one of the most popular and effective surgeries for vision correction worldwide. Known for its quick recovery and instant results, it’s a choice many people make to eliminate their dependence on eyeglasses or contact lenses. However, individuals considering LASIK often have questions about its long-term effects, specifically whether their eye power can worsen or increase post-surgery. This article aims to address this concern and provide clarity on the factors influencing vision stability after LASIK.
How Does LASIK Work?
To understand whether eye power can increase after LASIK, it helps to first understand what the procedure involves. LASIK reshapes the cornea using a precise laser to correct refractive errors, such as:
- Myopia (nearsightedness) – Difficulty seeing distant objects clearly.
- Hyperopia (farsightedness) – Difficulty seeing nearby objects clearly.
- Astigmatism – Blurred or distorted vision due to uneven curvature of the cornea.
The procedure essentially changes the way light enters the eye and focuses on the retina, ensuring clearer vision. Once successfully performed, LASIK permanently alters the corneal tissue. This means that, for many patients, the correction is intended to last.
But are the results guaranteed forever? Let’s examine some common scenarios.
Why Eye Power May Seem to “Increase” After LASIK
While LASIK itself permanently corrects the cornea, several factors can impact vision over time:
1. Age and Eye Aging (Presbyopia)
One of the most common reasons people notice changes in their vision after LASIK is simply the natural ageing process. Presbyopia, which affects almost everyone after the age of 40, is unrelated to LASIK. It results in difficulty focusing on nearby objects and is caused by the gradual stiffening of the eye’s lens over time. Even if LASIK eliminates your refractive errors, presbyopia can occur later, necessitating reading glasses for close-up tasks.
For those approaching their mid-40s and beyond, it’s important to understand that LASIK cannot prevent presbyopia, and any post-surgery vision changes may be attributed to this natural ageing process rather than the procedure itself.
2. Regression
Regression refers to slight changes in vision that may occur in some patients after LASIK. While rare, regression happens when the cornea subtly shifts back toward its pre-surgery shape, which can result in a minor return of refractive error, especially in people who had a high prescription before surgery.
For example:
- If you initially had severe myopia, there may be a slightly higher risk that your vision doesn’t remain as sharp as immediately post-surgery.
- Patients who have weaker corneas or certain health conditions may also be at a slightly higher risk of regression.
3. Underlying Eye Conditions
Not all vision issues are caused by refractive errors. Conditions like cataracts, glaucoma, retinal detachment, or macular degeneration can affect vision after LASIK. These conditions are unrelated to the LASIK procedure and need to be addressed separately.
Cataracts, for instance, can cloud the lens of the eye with age, reducing the clarity of vision. While LASIK corrects the cornea, it does not prevent or treat other vision impairments arising from the eye’s lens or retina.
4. Changes in Lifestyle or External Factors
For some people, visual changes may stem from external circumstances, like extended screen time, poor lighting, or eye strain. LASIK patients are not immune to the effects of these habits. Spending long hours in front of screens or neglecting proper eye care can still contribute to vision fatigue or discomfort, though they don’t necessarily increase “eye power.”
Can LASIK Results Be Guaranteed for Life?
The results of LASIK are permanent in terms of corneal correction, but vision can still be influenced by the factors listed above. For the majority of patients, LASIK provides stable vision for many years, often decades. However, there are no absolute guarantees that vision will remain unchanged forever.
How to Maintain Vision Stability After LASIK
While no procedure can stop natural ageing or prevent all eye conditions, there are steps you can take to promote long-term vision stability after LASIK:
1. Attend Follow-Up Appointments
Post-LASIK care is critical for monitoring your results. Follow-up visits allow your ophthalmologist to ensure proper healing and detect any early signs of regression or other conditions.
2. Protect Your Eyes
- Wear sunglasses to shield your eyes from UV rays, which not only protect your LASIK results but also reduce the risk of cataracts.
- Use safety glasses when engaging in activities that could expose your eyes to injury.
3. Practice Good Eye Hygiene
Reduce screen time, use adequate lighting when reading or working, and take breaks during extended digital device use (follow the 20-20-20 rule—look at something 20 feet away every 20 minutes for 20 seconds).
4. Maintain a Healthy Lifestyle
Eating a diet rich in vitamins A, C, and E can benefit your eyes. Regular exercise and proper hydration also contribute to overall eye health.
5. Consult Your Doctor About Enhancements
Enhancement procedures are rare but can be performed for patients experiencing regression after LASIK. These minor touch-ups adjust vision further if needed, ensuring continued clarity.
Who Has a Greater Risk of Eye Power Changing After LASIK?
Certain individuals may be at higher risk for fluctuations in vision post-surgery, including:
- Younger patients (<20 years): Their eyes may still be changing, which makes LASIK less ideal.
- Patients with very high prescriptions (e.g., extreme myopia): They may be more prone to regression.
- Patients with unstable vision before surgery.
- Individuals with certain health conditions, such as diabetes, that can impact healing.
If you fall into one of these categories, discussing the potential risks with your surgeon is essential to set realistic expectations.
Final Verdict
LASIK is a life-changing procedure that offers a long-term solution to refractive errors, freeing people from glasses and contact lenses. For the majority of patients, it results in stable vision for many years. While eye power rarely increases after LASIK, factors like age, lifestyle, and individual health can influence your vision over time.
To minimise any potential changes and maintain optimal results, follow your doctor’s recommendations, attend regular follow-ups, and take proactive steps to keep your eyes healthy. If you still have concerns about LASIK surgery or its long-term effects, consult with an experienced ophthalmologist who can guide you based on your specific needs and circumstances.
