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What is LASIK?bShinjuku LASIK Clinic (Japan)

Shinjuku LASIK Clinic

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  2. What is LASIK?
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What is LASIK?

What is LASIK?

What is LASIK?

LASIK or Lasik (Laser-Assisted in situ Keratomileusis), is commonly known as laser eye surgery or Laser Vision Correction (LVC). LASIK is a type of refractive treatment for the correction of myopia, hyperopia and astigmatism and it is a popular treatment performed worldwide.

To correct myopia, hyperopia and/or astigmatism, a laser called an Excimer laser is used to reshape the curve(s) of the eye's cornea so light refracts correctly onto the retina and improve overall visual acuity.

With very little pain, a treatment takes about 10 minutes and over 98% of people acquire 1.0 (20/20) vision. In the year 2000, LASIK was approved by the Japanese Ministry of Health, Labor and Welfare (MHLW) and has also been approved by the FDA and EU. LASIK has continued to grow in popularity and approximately 450,000 treatments are performed each year.

How vision works

Light passes through the eye's cornea and natural crystal lens and an image is projected onto the retina.

Unfortunately due to natural flaws of the eye and/or cornea, many people see images which are out of focus, blurry or even double vision. These symptoms are called myopia (near-sightedness), hyperopia (far-sightedness) or astigmatism (double vision).

Using a laser called an Excimer Laser, LASIK treatment removes cells from the cornea (known as ablation), and reshapes the cornea to allow light and images to be projected on the retina correctly.

How vision works
How vision works

Light passes through the eye's cornea and natural crystal lens and an image is projected onto the retina.

Unfortunately due to natural flaws of the eye and/or cornea, many people see images which are out of focus, blurry or even double vision. These symptoms are called myopia (near-sightedness), hyperopia (far-sightedness) or astigmatism (double vision).

Using a laser called an Excimer Laser, LASIK treatment removes cells from the cornea (known as ablation), and reshapes the cornea to allow light and images to be projected on the retina correctly.

IntraLASIK: All-laser vision correction

LASIK treatment is generally a 2 step process. To have access to inner part of the cornea, a special laser is used to create a "flap" on the surface of the eye. Afterwards, a second laser (called the Eximer Laser) is used to reshape the cornea. Traditionally, a surgical instrument called a microkeratome (which is a precision vibrating blade), was used to create the flap, but through advancements of technology, an IntraLase laser is generally used to create the flap. With the introduction of IntraLASIK, those who were previously unsuitable for LASIK (ie: having high myopia or lack of corneal thickness), may be suitable now.

LASIK treatment is generally a 2 step process. To have access to inner part of the cornea, a special laser is used to create a "flap" on the surface of the eye. Afterwards, a second laser (called the Eximer Laser) is used to reshape the cornea. Traditionally, a surgical instrument called a microkeratome (which is a precision vibrating blade), was used to create the flap, but through advancements of technology, an IntraLase laser is generally used to create the flap. With the introduction of IntraLASIK, those who were previously unsuitable for LASIK (ie: having high myopia or lack of corneal thickness), may be suitable now.

Safety of LASIK treatment

LASIK is one of the most popular elective treatments performed worldwide due to the precision, accuracy and track record of safety and satisfied customers. Various LASIK treatment and diagnostic equipment have passed medical trials and testing to acquire FDA, CE and even Japanese Ministry of Health, Labor and Welfare (MHLW) approval.

Over 1 million LASIK procedures are performed in the US each year and over 40,000 procedures are performed in Japan.

IntraLASIK: All-laser vision correction

¦ US data unavailable prior to 2003.

LASIK treatment flow

STEP.1 Antibacterial and anesthetic eye drops are applied before starting the treatment
STEP.2 An IntraLase laser is used to create a flap on the cornea.
STEP.3 The flap is lifted to expose the cornea to receive the treatment.
STEP.4 Using data from the initial examination, an Excimer laser is used to remove cells to reshape the cornea to show images correctly onto the retina.
STEP.5 The eye is rinsed and the flap is returned back into position.
STEP.6 The flap will settle and heal naturally over time.