Also, to learn more about other procedures such as PRK and femtolasics, read other pages.

لیزیک یکی از دقیق ترین روشهای جراحی عیوب انکساری چشم محسوب می‌شود که پرتوهای دریافتی نور را به درستی روی قرنیه چشم متمرکز می‌کند. هدف از انجام لیزیک رسیدن به دیدی واضح و شفاف می‌باشد. ما در کلینیک فوق تخصصی نورآفرین این مورد رو به طور کامل انجام می دهیم.

Uses of LASIK surgery

1. Nearsightedness: When a person has a large eyeball or the curvature of the cornea is such that light is focused in front of the retina, it becomes difficult for them to see distant objects.
2. Farsightedness: On the other hand, when a person has an average eyeball or the curvature of the cornea is such that light is focused behind the retina, it becomes difficult for him to see objects that are close and, in some cases, far away.
3. Astigmatism: Astigmatism occurs if the cornea has an irregular shape or distortion, causing difficulty seeing near and distant objects.

Complications of LASIK surgery

Like any other surgery, LASIK also has complications, which include:

• In nearsighted people, the use of LASIK is often associated with very little corneal tissue removal; as a result, the patient will not achieve clear vision and will need to undergo re-surgery.
• On the other hand, there is a possibility that too much tissue will be lost during LASIK surgery, making corneal correction more difficult.
• After LASIK surgery, there is a possibility that vision will return to its pre-operative state. Some of the contributing factors include incomplete wound healing, hormonal imbalance, or pregnancy.
• In very rare cases, a person may lose their vision or have unclear or unclear vision.
• Astigmatism: If the tissue removal is done irregularly, the person may develop astigmatism. In such cases, reoperation, glasses, or contact lenses may be required.
• After LASIK surgery, a person may have difficulty seeing objects at night. In such cases, the person may experience blurring, double vision, or seeing halos around light sources.
• Dry eyes: LASIK causes a decrease in tear production in the eyes, which may last for 6 months. Dry eyes reduce the quality of vision. The use of eye drops can be very beneficial. In very severe cases, the person may have to undergo surgery again to fully examine the tear ducts.
• Complications from peeling: LASIK involves removing layers from the front surface of the cornea. This layer is attached to the surface of the cornea with a hinge, and after lifting it from the surface of the cornea, a laser is used to reconstruct and change its curvature. Finally, the layer is returned to the surface of the cornea and a dressing lens is placed. In this situation, the patient may subsequently develop infection, inflammation, and increased tear secretion. If the corneal peeling is not done properly, the outer layer (epithelium tissue) may not adhere well to its lower part and grow abnormally.

Risk factors

There are certain factors that increase the risks of LASIK surgery and doctors are advised not to perform this surgery:

• Autoimmune diseases such as rheumatoid arthritis
• Immunodeficiency conditions caused by diseases such as HIV or the use of immunosuppressive drugs.
• Persistent dry eyes
• Unstable vision due to certain medications, hormonal changes, pregnancy, breastfeeding, or aging
• Keratoconus, corneal inflammation, uveitis, herpes zoster, glaucoma, cataracts, eye injury, or other eyelid disorders

Reasons for not prescribing LASIK surgery to a patient

• The overall view is fairly good.
• Has a large pupil or thin cornea
• Specific occupations that may affect a person's recovery
• Age-related eye problems, such as presbyopia
• Impact sports that can cause facial injuries.

It is recommended that you consult with an eye specialist before deciding on LASIK surgery to fully consider its advantages and disadvantages.

Also, to learn more about other procedures such as PRK and femtolasics, read other pages.