LASIK Laser Vision Correction

LASIK (Laser-Assisted in Situ Keratomileusis) The principle of laser vision correction is to use laser technology to reshape the curvature of the cornea, correcting the eye's ability to refract light and thereby improving vision and reducing dependence on glasses and contact lenses. The creation of a thinner and more even corneal flap in LASIK laser vision correction significantly reduces postoperative complications such as irregular astigmatism or glare. LASIK laser vision correction surgery has a history of over 30 years and was first approved by the FDA in the United States in 1987. Since its introduction, over 40 million people have undergone this surgery. LASIK femtosecond laser vision correction has seen a high growth rate in cities like Hong Kong. The new generation of femtosecond laser correction only requires 1.4 seconds to correct 100 degrees of refractive error, making the process safe and fast. During the surgery, there is no need for anesthesia injections, only anesthesia eye drops are used, and there is no pain during the procedure. Most people can recover clear vision by the second day after surgery, without any impact on daily life. They can resume work, go out, or read as usual, which is very convenient.

The instrument used at our LASIK laser vision correction center is the WaveLIGHT EX500 Excimer Laser.

LASIK Laser Vision Correction Process

Before the LASIK laser vision correction surgery begins, the patient's eyes are first numbed with eye drops for anesthesia. Then, an eyelid holder is used to keep the eye open. The surgeon will place a small suction ring to stabilize the position of the cornea. Once the eye is properly positioned, the surgeon will use an instrument to create extremely fine laser bubbles in the cornea and then use a femtosecond laser to create a approximately 20mm flap in the cornea. The surgeon will then lift the corneal flap and use an excimer laser to reshape the cornea to correct the refractive error. Finally, the corneal flap is repositioned, and the incision will naturally heal without the need for stitches.

Step 1

Step 2

Step 3

The corneal flap is created by lifting it.

The cutting is done using laser technology.

The corneal flap is then repositioned.

Benefits of LASIK Laser Vision Correction

Corrects myopia, hyperopia, astigmatism, and can effectively help presbyopia.
Offers a larger range of correction.
Convenient and fast, the process of PRK (photorefractive keratectomy) only takes a few seconds, and the entire surgery can be completed in approximately 30-45 minutes.
Utilizes 7D technology for enhanced safety and precision.
Fast visual recovery, with clear vision possible as early as the day after the surgery.

Eligible Candidates

Individuals with refractive errors up to a maximum of -1400 diopters for myopia, +600 diopters for hyperopia, and +600 diopters for astigmatism.

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Book A Seminar

Specialized ophthalmologists will provide explanations about various vision correction information and address any questions you may have during the consultation. They will also conduct an initial assessment of your eyes at that time. Welcome to call 6888 8811 / Book a seminar online. If you wish to make an online appointment, please fill out the following form. Our center will confirm your appointment via phone or email.

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Is it common to experience a regression of refractive error after LASIK laser vision correction?

The cornea requires time to heal following the surgery. Generally, a patient's vision and refractive error gradually stabilize within 3 to 6 months. Therefore, any regression of refractive error may be within the margin of error for myopia, hyperopia, or astigmatism. After 6 months of undergoing LASIK laser vision correction, a deviation of up to 75 degrees is considered normal and successful, and there is no need for corneal collagen cross-linking surgery*.

*An ophthalmologist specializing in the field will assess your eye condition and visual requirements to determine whether corneal collagen cross-linking surgery is necessary.

Who are not suitable candidates for LASIK laser vision correction?

Individuals with unstable myopia, astigmatism, and hyperopia.
Patients with excessively thin corneas.
Patients with conditions such as keratoconus, cataracts, or glaucoma.
Patients with a history of corneal infection or herpes simplex virus infection.
Individuals with autoimmune disorders, such as rheumatoid arthritis, lupus, etc.
Pregnant women.

What is corneal collagen cross-linking surgery?

The purpose of corneal collagen cross-linking surgery is to strengthen the cornea by increasing the number of "anchors" that connect collagen fibers together, enhancing the resilience of the cornea and reducing damage to the corneal layers during the procedure. The doctor will administer eye drops containing vitamin B2 (riboflavin) to the patient's eyes and then expose the eyes to UVA light for approximately 1 minute. This process promotes the binding of collagen proteins in the corneal fibers, achieving corneal cross-linking and strengthening.