LASIK Surgery Risks: Side Effects, Warning Signs

Last updated: 23/5/2026

LASIK surgery is one of the most common vision correction procedures. However, many patients search before making a decision for LASIK surgery risks, LASIK risks to the eyes, and whether symptoms after LASIK surgery may appear, such as dry eye, blurred vision, or light halos. Some people also have LASIK concerns about pain, worsening vision, or the need for medical follow-up after surgery.

Doctors at Magrabi Hospitals explain that most symptoms after LASIK are temporary and gradually improve during the recovery period. However, some cases require careful follow-up to ensure eye safety and vision stability. The most important step remains the preoperative examination to confirm whether LASIK is suitable for the patient’s condition.

 

Do you have a quick question about LASIK surgery risks? Contact us now via WhatsApp.

 

What are the possible LASIK surgery risks?

The possible risks of LASIK surgery may appear after the procedure, and their severity varies from one person to another depending on the condition of the eye, the degree of vision correction, corneal thickness, and how well the patient follows the doctor’s instructions after LASIK surgery. In most cases, these symptoms are temporary and gradually improve during recovery, but they require medical follow-up if they persist or affect visual clarity.

Some of the most common risks that patients may experience include:

• Dry eye: The patient may feel burning, stinging, or an urge to rub the eye. This can happen because LASIK may temporarily affect tear production. Therefore, doctors at Magrabi Hospitals recommend using lubricating eye drops only as prescribed by the doctor.
• Blurred vision or hazy vision: Vision may be unstable during the first days or weeks after surgery, especially when reading or using screens for long periods.
• Light halos and glare: Some patients may notice halos around lights or discomfort from bright light. This often appears during night driving or in places with strong lighting.
• Poor night vision: Vision in the dark or in low-light conditions may become temporarily less clear, especially during the first weeks after LASIK.
• Light sensitivity: The patient may feel discomfort when exposed to bright light, so the doctor may recommend wearing sunglasses during the early period after surgery.
• Unstable vision: The patient may notice that vision improves one day and changes the next. This may happen while the cornea heals and the eye surface stabilizes.
• Keratitis or irritation: This is one of the less common LASIK complications, but it requires seeing a doctor if severe redness, pain, discharge, or a clear decline in vision appears.
• The need for additional correction: In some cases, the patient may not achieve the expected degree of correction fully and may need mild glasses or an additional corrective procedure if medically suitable.

These symptoms do not mean that LASIK surgery is unsafe or that the result is poor. However, they highlight the importance of a precise examination before surgery and follow-up afterward. Magrabi doctors explain that eye evaluation before LASIK helps reduce LASIK risks, because the doctor determines from the beginning whether the cornea is suitable and whether there is dryness or another problem that may affect recovery.

Why do some symptoms appear after LASIK surgery?

LASIK surgery risks may appear due to the nature of the procedure itself, as the laser is used to reshape the retina so that light rays focus more accurately on the retina. The eye’s response to recovery varies from one person to another.

The main factors that may increase the likelihood of LASIK complications include:

• Having dry eyes before surgery.
• Weak corneal thickness or problems with the shape of the cornea.
• Having a high degree of nearsightedness, farsightedness, or astigmatism.
• Rubbing the eye after surgery or not following the doctor’s instructions.
• Having previous eye infections or eye diseases.
• Not attending follow-up appointments with the doctor after surgery.
• Having unrealistic expectations about the final result.

The FDA explains that LASIK results may vary between patients, and that some people may need glasses or contact lenses after surgery. It also confirms that there are no absolute guarantees in medicine.

What are the less common LASIK risks?

Although most patients go through a stable recovery period, there are less common risks that should be understood before surgery. The purpose of knowing them is not to cause fear, but to help the patient make an informed decision after examination and discussion with the doctor.

Less common LASIK surgery risks include:

• Overcorrection or undercorrection of vision.
• The need for an additional corrective procedure in some cases.
• Keratitis or infection after surgery.
• Problems with healing of the corneal surface.
• Changes in the shape of the cornea when risk factors are already present.
• Dry eyes last longer than expected.
• Persistent halos or night glare.
• Difficulty seeing in low-light conditions.

Doctors in the ophthalmology department at Magrabi Hospitals explain that some patients may experience bothersome visual symptoms such as glare, halos, or double vision, and these symptoms may affect night vision in some cases.

Can LASIK surgery cause blindness?

One of the most common LASIK concerns is the following question: Can LASIK surgery cause blindness? The medical answer is that severe vision loss after LASIK is extremely rare, but it cannot be completely ruled out because any medical or surgical procedure may carry limited possibilities of complications.

In most cases, LASIK surgery does not lead to blindness, especially when the right patient is selected for the procedure after a detailed eye examination. Therefore, doctors at Magrabi Hospitals explain that evaluating the cornea, vision prescription, dry eye, and overall eye health before surgery helps reduce LASIK risks and choose the most suitable decision for each case.

LASIK surgery risks may be linked to factors such as:

• The cornea being unsuitable for surgery: This may include weak corneal thickness or changes in its shape. For this reason, corneal examination before LASIK is an essential step.
• Severe dry eye before surgery: Dry eye may increase irritation or blurred vision after LASIK and may need treatment before considering the procedure.
• Inflammation or infection after surgery: These cases are uncommon, but they require seeing a doctor quickly if severe pain, obvious redness, discharge, or vision decline appears.
• Not following the doctor’s instructions: This includes rubbing the eye, neglecting eye drops, or missing follow-up appointments, which may affect corneal healing.
• Undergoing the procedure without a comprehensive examination: The examination before LASIK is not just a routine step. It is the most important factor in determining whether the procedure is suitable and safe for the case.

Therefore, fear of blindness should not cause excessive anxiety. At the same time, LASIK should not be treated as a simple procedure suitable for everyone. The right decision begins with a comprehensive examination and a clear discussion with the doctor about benefits, risks, and realistic expectations after surgery.

 

You can read more about vision correction services at Magrabi to learn about the medical details, examination steps, and treatment options.

 

Long-term LASIK surgery risks

Some effects of LASIK surgery may last longer in a limited number of patients, especially if they have chronic dry eye, a thin cornea, or unsuitable expectations before surgery. This does not mean that every patient will experience long-term symptoms.

Symptoms that may continue in some cases include:

• Recurrent dry eye.
• Poor night vision.
• Light halos around lamps.
• The need for reading glasses with age.
• Unstable vision in certain cases.
• The need for additional correction if vision changes later.

LASIK surgery risks for diabetic patients

Patients with diabetes need a more careful evaluation before LASIK, because diabetes may affect tissue healing, eye health, and vision stability. Some patients may also experience changes due to the effect of diabetes on the retina or dry eye.

This does not mean that every diabetic patient is unsuitable for LASIK, but the decision depends on:

• The level of blood sugar control.
• Vision stability.
• The condition of the retina.
• The presence of dryness or inflammation.
• Corneal examination results.
• The doctor’s evaluation of recovery expectations.

Doctors at Magrabi Hospitals explain that retinal examination and measuring vision stability are important before considering LASIK for diabetic patients, because the decision must be based on both eye condition and overall health.

How can the likelihood of LASIK complications be reduced?

Not all LASIK complications can be completely prevented, but their likelihood can be reduced through proper examination and adherence to medical instructions. Prevention starts before surgery, not only afterward.

Tips that help reduce LASIK surgery risks include:

• Having a comprehensive examination before surgery.
• Informing the doctor about any previous dry eye.
• Telling the doctor about chronic diseases or medications being used.
• Making sure the vision prescription is stable before LASIK.
• Avoiding contact lenses before the examination according to the doctor’s instructions.
• Using eye drops after surgery as prescribed by the doctor.
• Avoiding rubbing the eye after LASIK.
• Avoiding swimming or dust during the period specified by the doctor.
• Attending follow-up appointments.
• Avoiding night driving until the doctor allows it.

The NHS confirms that following postoperative care instructions, using lubricating eye drops, and avoiding night driving until the eye heals and vision returns after LASIK surgery are important recovery steps.

When should you see a doctor after LASIK?

Doctors at Magrabi Hospitals recommend seeing a doctor if symptoms persist, become more severe, or affect daily life. The patient should also not wait for symptoms to improve on their own if unusual signs appear.

You should see a doctor in the following cases:

• Severe or increasing eye pain.
• Obvious redness that does not improve.
• Eye discharge.
• Sudden deterioration in vision.
• Severe blurred vision that does not improve.
• Strong and persistent light sensitivity.
• Flashes or a dark curtain in the field of vision.
• Persistent and bothersome dry eyes.
• Clear difficulty with night vision.
• Feeling that vision is getting worse instead of improving.

The Saudi Ministry of Health highlights the importance of regular eye examinations and seeing a doctor when redness, itching, discharge, pain, or unusual eye symptoms appear.

If you are looking for a suitable medical solution, book your appointment at Magrabi by phone call or through the booking form so your condition can be evaluated and the most appropriate plan can be selected.

 

LASIK surgery risks are often temporary and can be managed when the patient commits to proper examination and medical follow-up. Common symptoms include dry eye, light halos, blurred vision, and light sensitivity, while serious complications are less common. Doctors at Magrabi Hospitals recommend not making the decision to undergo LASIK before a comprehensive examination determines whether the procedure is suitable for the eye condition, with medical consultation if symptoms persist or affect quality of life.

Medically reviewed by Dr. Sherif Tolees.

Medical Disclaimer: The information in this article is for health education purposes only and does not replace a visit to a doctor or consultation with a qualified specialist. Magrabi doctors recommend seeking medical evaluation for an accurate diagnosis and appropriate treatment plan.

References

• American Academy of Ophthalmology — Facts About LASIK Complications.
• Mayo Clinic — LASIK eye surgery.
• Cleveland Clinic — LASIK Eye Surgery.
• Egyptian Ministry of Health and Population — Educational references in ophthalmology.
• Ministry of Public Health Qatar — Eye health awareness and access to eye care.