- Dry eye after LASIK occurs due to the surgery affecting the function of the tear glands, causing reduced tear production and imbalance in the tear film, which leads to eyes feeling dry and less hydrated.
- Post-LASIK dry eye is usually not dangerous, but if left unmanaged, it can cause irritation or increase the risk of infection. You should consult a doctor if symptoms are severe or persist.
- Artificial tears after LASIK help moisturize the eyes, relieve dryness and irritation, promote faster recovery, and reduce the risk of complications.
After LASIK, many people experience dry eyes, a common issue that can cause significant discomfort. Understanding the causes and proper care—such as using artificial tears or adjusting daily habits—can help restore eye health quickly and safely, allowing you to return to normal life comfortably.
Causes of Dry Eye After LASIK
The main causes of dry eye after LASIK are related to temporary effects of the surgery on eye function, such as:
Corneal flap creation
During LASIK, a laser creates a flap in the cornea, cutting some corneal nerves that normally send signals to the brain to stimulate tear production. This temporarily reduces tear production.
Corneal surface inflammation
LASIK causes mild inflammation on the corneal surface, affecting tear film balance. Normally, the tear film lubricates and protects the eye, but when it becomes unstable, tears evaporate faster, causing dry, irritated eyes. Frequent use of artificial tears can help restore moisture and relieve discomfort.
Pre-existing dry eye
Patients who already have dry eye before LASIK may experience worsened symptoms after surgery. The procedure affects tear glands and tear film, increasing dryness, irritation, and discomfort. Inform your ophthalmologist beforehand and prepare for close post-surgery care.
Is Dry Eye After LASIK Dangerous?
Dry eye is common after LASIK and usually not severe. It can cause discomfort, burning, or irritation for a period after surgery. The main reason is that surgery affects tear gland function and tear quality, reducing tear production. With proper care and following medical advice, dry eye usually improves and resolves within a few weeks to months.
The Importance of Artificial Tears After LASIK
The most effective way to relieve post-LASIK dry eye is frequent use of artificial tears as directed by your doctor, especially in the first week after surgery.
Artificial tears contain moisturizing agents like hypromellose, sodium hyaluronate, or carboxymethylcellulose. They are essential for all LASIK patients, helping restore moisture, reduce burning, and relieve dry eye—a common side effect in the first six months after surgery. LASIK affects the cornea and tear production, making artificial tears crucial.
Which Artificial Tears Should You Use?
Artificial tears come in various types and formulations to suit individual needs, including:
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Preservative-free single-use vials
These are used within 24 hours of opening, feel comfortable on the eyes, have lower risk of allergy, but are more expensive than preservative-containing versions.
Self-Care to Relieve Dry Eye After LASIK
Proper self-care is essential in addition to artificial tears, helping eyes recover fully. Recommendations include:
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Take regular breaks
Avoid prolonged screen time. Follow the “20-20-20” rule: every 20 minutes, look at an object 20 feet (≈6 meters) away for 20 seconds to reduce strain and maintain moisture. -
Use eye shields as directed
Immediately after surgery, use eye shields to protect from dirt and prevent irritation. Follow doctor instructions, usually for the first day and then nightly for one week, except when applying prescribed drops. -
Avoid dry environments
Stay away from direct air conditioning, fans, strong wind, or smoke, as these can worsen dryness. Artificial tears help maintain moisture in such conditions. -
Avoid water contact
Do not swim, splash your eyes, or wash your face forcefully to prevent infection or interfere with healing. -
Avoid eye makeup
Eyes are sensitive after LASIK, particularly during dry eye recovery. Avoid makeup unless advised by your ophthalmologist, usually allowed one week after surgery. -
Avoid dust
Exposure to dust or dirt can cause irritation or infection. Protect eyes with glasses or masks if needed and wash hands before touching eyes. -
Support eye health
Stay hydrated to promote natural tear production. Omega-3 supplements (fish oil or flaxseed) can improve tear quality and reduce dryness.
Summary
Dry eye after LASIK is a common side effect caused by surgery affecting tear production, leading to dryness and irritation. Proper care—such as preservative-free artificial tears, adequate hydration, and avoiding dust—helps relieve symptoms and speeds recovery. Choosing the right type of artificial tears according to doctor recommendations is important. Bangkok Eye Hospital provides LASIK with advanced technology and post-surgery care for safe and effective results.
FAQ About Dry Eye After LASIK
How long does dry eye last after LASIK?
Symptoms usually improve and resolve within 3–6 months as corneal nerves recover, though some individuals may take slightly longer.
Which artificial tears are best?
Preservative-free artificial tears are recommended because they are gentle and can be used frequently without causing irritation. Always follow your doctor’s instructions.
Can I wear contact lenses if my eyes are dry?
No, avoid contact lenses during recovery, as they can increase friction, irritation, and complications.
