Eye pain when blinking can come from a dry or inflamed eyelid, a stye, a trapped particle, or a scratch on the cornea. Sharp pain in one eye—left or right—needs prompt assessment when it is severe, follows an injury, or occurs with redness, light sensitivity, discharge, headache, nausea, or any change in vision. Contact-lens wearers with pain or redness should remove their lenses and seek same-day professional advice.
Urgent warning: Seek emergency eye care now for chemical exposure, a penetrating injury, sudden loss or reduction of vision, severe eye pain, or eye pain with nausea/vomiting. After a chemical splash, begin rinsing the eye immediately with plenty of clean water and obtain emergency medical help.
Blinking moves the eyelid across the cornea—the clear, nerve-rich front surface of the eye. If the eyelid or cornea is dry, inflamed, scratched, infected, or irritated by a particle, each blink may trigger discomfort. The location of the pain alone does not identify the cause, so “left eye pain” and “right eye pain” are assessed in the same way.
| Pattern | Possible cause | Recommended action |
|---|---|---|
| Gritty, burning or tired eyes | Dry eye or blepharitis | Arrange an examination if persistent or recurrent |
| Tender eyelid bump | Stye or blocked eyelid gland | Do not squeeze it; seek care if worsening |
| Sharp pain after dust, rubbing or minor trauma | Foreign body or corneal abrasion | Do not rub; obtain prompt assessment |
| Pain, redness, discharge or light sensitivity | Inflammation or infection | Seek prompt professional eye care |
| Pain while wearing contact lenses | Corneal irritation, abrasion or microbial keratitis | Remove lenses and seek same-day advice |
When the tear film does not lubricate the eye adequately, blinking can feel gritty, burning or sore. Dry air, prolonged screen use, some medicines, eyelid-gland dysfunction and contact-lens wear can contribute. Persistent symptoms should be examined because different forms of dry eye require different management.
Inflammation around the eyelid margins can cause crusting, itching, burning and a foreign-body sensation. Symptoms may affect both eyes and can recur. An eye-care professional can check the eyelids, tear film and corneal surface and advise suitable treatment.
A stye is a tender inflamed lump near the eyelid edge. A chalazion is usually a blocked oil gland and may be less painful. Avoid squeezing either lesion. Seek care if swelling spreads, vision changes, pain becomes severe, or the lump does not improve.
Dust, grit, a fingernail, plant material or a damaged contact lens can scratch the cornea. Because the cornea contains many nerves, even a small abrasion can cause marked pain, tearing, redness, blurred vision and sensitivity to light. Do not rub the eye or try to remove an embedded object.
Conjunctivitis often causes redness, irritation, watering or discharge. Severe pain, light sensitivity or reduced vision is not typical of simple conjunctivitis and should be assessed promptly to exclude a more serious corneal or internal eye problem.
Microbial keratitis is an infection of the cornea and can threaten sight. Contact-lens wear is an important risk factor, especially when lenses are worn overnight or exposed to water. Warning signs include worsening pain, redness, light sensitivity, sudden blurred vision, excessive watering or discharge.
Pain felt behind the eye, particularly pain triggered by eye movement or accompanied by loss of colour or clarity of vision, may have a cause different from surface pain during blinking. It requires professional assessment rather than self-diagnosis.
Obtain urgent medical assessment for:
Vision Concern Eye Clinic and Optical provides professional eye examinations at Lazimpat near Radisson Hotel, Boudha-Tushal opposite KFC, and Makalbari–Pragati Chowk. The stated comprehensive eye-examination fee is NPR 400; confirm current availability and urgent-care arrangements before travelling.
View the comprehensive eye examination service or WhatsApp Vision Concern. Tourists and international visitors can also view eye care for tourists and expats in Kathmandu.
Dry eye can cause burning, grittiness and soreness during blinking, but sharp or persistent pain should not automatically be assumed to be dry eye. An examination can identify a scratch, foreign body, eyelid problem or infection.
One-sided pain may occur when irritation, a stye, a foreign body, an abrasion or inflammation affects one eye. “Left” versus “right” does not determine the diagnosis.
No. Remove the lenses and do not wear them again until an eye-care professional advises that it is safe, particularly if redness, blurred vision, discharge or light sensitivity is present.
Lubricating drops may ease mild dryness, but unexplained, severe or persistent pain needs examination. Avoid redness-relief or steroid drops unless specifically advised for your condition.
This page provides general information and cannot diagnose an individual eye condition. Medically reviewed by Yadav Raut – Master in Optometry (Norway). Last medically reviewed: 1 September 2026.
New or worsening pain—especially with redness, light sensitivity, injury, discharge or reduced vision—should be assessed promptly. Vision Concern assists local residents, tourists and expatriates through its Lazimpat eye clinic and Boudha eye clinic.
Do not use an online article as a diagnosis. Sudden vision loss, chemical exposure or severe injury requires emergency medical care.
Use these guides to understand common eye symptoms, then arrange an examination when symptoms persist, worsen or affect vision.
This information is educational and does not diagnose a condition or replace an examination by a qualified eye-care professional.
Book a non-emergency eye examination: Lazimpat, Boudha, or Makalbari.
Vision Concern offers:
Yes.
If your frame is in good condition, we can replace only the prescription lenses with options including:
Many international insurance providers may reimburse eye examinations or prescription eyewear depending on the policy. We recommend checking with your insurer before your visit, and we can provide invoices and supporting documentation when required.
