Laser eye surgery is a transformative procedure designed to correct refractive errors such as near-sightedness, farsightedness, and astigmatism. It has gained immense popularity due to its potential to significantly reduce or eliminate dependence on glasses or contact lenses. However, understanding the relationship between laser eye surgery and overall eye health is essential for anyone considering this option.
In an interview with Asian Voice, Sunil Shah, Consultant Ophthalmic Surgeon at Midland Eye, shares insights on laser eye surgery, explores alternative treatments, and offers guidance on choosing the best option for your vision needs.
How does one determine if they are a good candidate for laser eye surgery? Are there any conditions that might disqualify someone?
An ideal candidate for treatment is someone with a moderate prescription in their glasses or contact lenses. While patients with prescriptions up to approximately -8D for shortsightedness, +3D for longsightedness, or 6D for astigmatism can be treated, smaller prescriptions are generally easier to address. Certain conditions may disqualify an individual, such as severe dry eye, corneal issues like herpes or eye infections, and broader health problems, including active rheumatoid arthritis. A thorough consultation is essential to evaluate each individual’s suitability for treatment and to ensure that expectations are realistic, particularly for those with more complex prescriptions.
Is it common for vision to become defective again a few years after laser eye surgery?
It is uncommon for a distance prescription to change after treatment. Typically, any changes are due to age-related loss of reading ability, known as presbyopia or age-related visual loss, which affects everyone around the age of 45.
With presbyopia, the situation is complex, and there is no one-size-fits-all solution. Broadly, there are laser options, such as monovision (where one eye is corrected for reading and the other for distance) and presbylasik (a hybrid laser solution) or AceVision presbyopia treatment, which is expected to become available within the next year. Additionally, there are lens-based options, including monovision and premium lenses that correct both near and far vision.
There is no universally "best" solution—it depends on the patient's prescription, age, and individual needs, which is why a consultation is essential to determine the most suitable approach.
What does the recovery process look like after laser eye surgery, and how long does it typically take?
The recovery process varies depending on the type of laser surgery. Procedures such as SMILE or LASIK generally settle overnight, while PRK or LASEK typically require about five days for recovery. Each type of procedure has its own advantages and disadvantages, so an assessment is necessary to determine which is most suitable for you. The laser treatment itself usually takes less than 60 seconds to complete.
Are there any long-term care requirements?
No, but it is important to visit an optometrist regularly to monitor overall eye health. The optometrist should be informed about the surgery you have undergone and the degree of correction, as this information impacts the measurement of intraocular pressure for glaucoma and the assessment of intraocular lenses.
What do you think is the biggest misconception about laser eye surgery that you'd like to address?
This is one of the most accurate and successful surgical procedures available, with millions performed worldwide, transforming countless lives—including reportedly that of Taylor Swift.
While it is a surgical procedure and has occasionally received negative publicity, when performed by skilled professionals who select the most suitable approach for each patient, it is exceptionally safe and precise—far more successful than many other surgical interventions.
The results of the procedure are permanent; it does not wear off over time and does not require repetition. It is designed as a one-time, lifelong solution.
What are the most significant risks associated with laser eye surgery, and how are they managed?
The most common physical risk associated with surgery is dry eye. However, the greatest concern for many patients is having unrealistic expectations, which can lead to dissatisfaction with the outcome. Other risks are specific to the procedure, and while there is a list of potential complications, the likelihood of these occurring is very small. When the surgery is performed by a skilled professional using the appropriate equipment, the overall risk is exceptionally low.
Is there any particular advice or guidance you’d like to share for individuals exploring their vision correction options?
Research thoroughly to find a provider who offers a range of vision correction options, has a high level of expertise, and extensive experience in performing such procedures. The Royal College of Ophthalmologists recommends meeting your surgeon at least a week before the procedure. If the provider typically does not arrange for you to meet the surgeon beforehand, request an appointment to ensure you have the opportunity. This is an important surgery, and it is essential that you feel confident and comfortable with your surgeon.
