Eye twitching is an involuntary contraction of the eyelid muscles. It is usually temporary and resolves on its own. However, persistent or severe symptoms should be evaluated by a doctor for proper diagnosis and treatment. Common causes include stress, lack of sleep, excessive caffeine intake, and prolonged eye use. Treatment and relief options include adequate rest, stress reduction, limiting eye strain, warm compresses, and avoiding caffeine. If symptoms persist, medical treatments such as Botox injections, medication, or surgery may be considered. Have you ever noticed your eyelid twitching unexpectedly? While it may last only a short time for some people, frequent eye twitching can cause concern. One common question is, “Which vitamin deficiency causes eye twitching?” or whether it is related to stress or overall health. This article explains the causes of eye twitching, along with proper care, treatment, and prevention.   What Is Eye Twitching? Eye twitching (myokymia) is a rapid, involuntary movement of the eyelid muscles. It may occur mildly or repeatedly enough to become irritating. Twitching can affect either the upper or lower eyelid, on the right or left eye. Although some believe it has symbolic meaning, medically, eye twitching is usually harmless, painless, and temporary. In some cases, however, symptoms may persist and require further evaluation.   Causes of Eye Twitching Eye twitching on the right or left side is commonly caused by daily lifestyle factors, including: Chronic stress or anxiety Irregular sleep or sleep deprivation Excessive screen time without breaks High caffeine intake Smoking or excessive alcohol consumption Bright light, wind, or air pollution Vitamin and mineral deficiencies such as magnesium, vitamin B12, or vitamin D Eyelid irritation or allergies Dry eye syndrome Neurological disorders such as Parkinson’s disease Side effects of certain medications   What Can Frequent Eye Twitching Indicate? Although most cases are mild, frequent or severe twitching may indicate underlying conditions, such as: Bell’s palsy (usually temporary) Dystonia or facial dystonia Cervical dystonia Oromandibular dystonia Tourette’s disorder Multiple sclerosis (MS)   Diagnosis for Severe Eye Twitching Ophthalmologists or neurologists may perform a medical history review and physical examination. Additional tests may include: MRI (Magnetic Resonance Imaging) to detect nerve compression or tumors Electromyography (EMG) to measure muscle and nerve activity   Treatment and Relief for Eye Twitching   Botox Injections Botox injections are a medically approved and effective treatment for uncontrolled muscle spasms around the eyes. Botox relaxes the muscles and blocks nerve signals that cause twitching. Results last about 3–6 months, and follow-up treatment may be needed.   Medication Muscle relaxants or sedatives such as lorazepam, trihexyphenidyl, or clonazepam may provide temporary relief. These should be used only under medical supervision due to possible side effects.   Treating Contributing Factors Artificial tears for dry eyes Treatment for eyelid inflammation or allergies FL-41 tinted glasses to reduce light sensitivity   Surgery Surgery may be considered if symptoms do not improve with Botox or other treatments. This involves cutting the nerves that control eyelid muscles to stop involuntary twitching.   How to Prevent Eye Twitching Reduce screen time Get enough sleep Limit caffeine intake Avoid smoking and alcohol Practice stress management techniques Massage the eye area gently Apply warm compresses for 10 minutes Use artificial tears if eyes feel dry   Summary Eye twitching is an involuntary eyelid movement commonly caused by stress, lack of rest, or nutrient deficiencies. Persistent or severe symptoms may indicate neurological conditions and should be evaluated by specialists. At Bangkok Eye Hospital, advanced diagnostic tools such as MRI and Botox treatments are available to ensure safe and effective care.   Frequently Asked Questions (FAQ)   How do you massage your eyes to relieve twitching? Gently massage around the eyes using circular motions with light pressure to improve blood circulation and relax the muscles. Avoid pressing directly on the eyeballs.   Why won’t my left eye stop twitching? Persistent left eye twitching may be caused by stress, lack of sleep, excessive screen use, caffeine, dry eyes, or magnesium deficiency. If symptoms continue, consult a doctor.   How long does eye twitching last? Most cases resolve within a few hours to 2–3 days. If symptoms last longer than one week, medical evaluation is recommended.

An intraocular lens (IOL) is an artificial lens implanted to replace the natural lens after cataract surgery or to correct refractive errors. IOLs restore clear vision and can also correct nearsightedness, farsightedness, or astigmatism. Types of Intraocular Lenses Monofocal IOL Provides clear vision at a single distance, usually for far vision. Simple, reliable, and cost-effective, but near or intermediate vision may require glasses. Multifocal IOL Provides clear vision at multiple distances (near, intermediate, far), reducing dependency on glasses. Subtypes include: Bifocal IOL: Two focal points (e.g., near + far or intermediate + far). Trifocal IOL: Three focal points (near, intermediate, far) for daily activities. Extended Depth of Focus (EDOF): One extended focal point for improved distance and intermediate vision. Some patients may notice glare or halos, especially at night. Toric IOL Designed specifically for astigmatism correction. Can be monofocal or multifocal depending on patient needs. Requires precise measurements for optimal placement. Preparing for IOL Surgery Proper preparation improves outcomes and reduces complications: Eye exam and health evaluation to assess surgical risk. Measurement of corneal curvature and eye length to calculate lens power. Discuss and choose the appropriate IOL type with your surgeon. Trial assessment of stress and ability to remain still during surgery. Remove contact lenses 3–7 days prior to surgery. Wear comfortable, easy-to-change clothing and avoid makeup, creams, or jewelry. Arrange for a caregiver to assist before and after surgery. Bring sunglasses for post-surgery eye protection. Surgical Procedure Local anesthesia (eye drops or injection) is used; general anesthesia if necessary. A small incision (~3 mm) is made at the cornea-sclera junction. Ultrasound may be used to break up a hardened cataract. The natural lens is removed while keeping the lens capsule intact. The folded IOL is inserted through the incision and positioned in the lens capsule. No stitches are required due to the small incision. Post-Surgery Care Proper care ensures faster recovery and reduces complications: Use prescribed eye drops and medications as directed. Avoid heavy eye use, liftings, or bending for the first month. Clean around the eyes with sterile materials; avoid rubbing. Wear sunglasses during the day and an eye shield at night for one month. Avoid swimming, direct water, or dust exposure. Gradually resume normal vision use; report pain, swelling, blurred or double vision immediately. Recovery and Possible Side Effects Vision improves gradually within days and stabilizes around one month. Common minor side effects include blurred vision, dry eyes, or swollen image points, usually resolving within weeks. Long-term complications are rare but may include lens capsule clouding, infection, lens dislocation, increased eye pressure, or retinal issues. Capsule clouding can be treated with laser therapy for rapid vision improvement. Cost and Insurance Coverage Average cataract surgery with IOL implantation: approximately 59,000 THB and above. Standard IOLs are usually covered by health insurance, but premium lenses (Multifocal or Toric) may require additional payment. Check with your insurance provider. Summary Intraocular lenses replace the natural lens affected by cataracts or refractive errors, restoring clear vision. Types include monofocal, multifocal, and Toric IOLs, each suited for different vision needs. Proper pre-surgery preparation and post-surgery care ensure faster recovery and optimal outcomes.Bangkok Eye Hospital provides advanced IOL services with expert ophthalmologists to restore confident vision. FAQ How long do IOLs last? IOLs are permanent and do not deteriorate over time. Replacement is generally unnecessary. Can I watch TV after surgery? Yes, but take breaks to avoid eye strain. Can I have IOLs if I have cataracts and astigmatism? Yes, Toric IOLs correct both cataracts and astigmatism, reducing dependence on corrective glasses.