Dry eye happens when the eyes do not make enough tears or when the tear film does not work well enough to protect the surface of the eye. Symptoms can include burning, grittiness, redness, light sensitivity, fluctuating blur and—surprisingly—watery eyes. Treatment depends on the cause, so persistent symptoms deserve more than a one-size-fits-all home remedy.
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When eye symptoms need urgent care
Dryness is common, but a painful red eye is not always simple dry eye. Seek urgent medical assessment for sudden vision loss, severe eye pain, marked light sensitivity, an eye injury or chemical exposure, a severe headache with a red eye, or new flashes, floaters or a curtain-like shadow. A red or painful eye while wearing contact lenses also needs prompt assessment because infection can threaten vision.
Why eyes become dry
A healthy tear film contains watery fluid, oils that slow evaporation and substances that help tears spread across the eye. Dryness may develop when too few tears are produced, when tears evaporate too quickly or when eyelids and oil glands do not work normally.
Common contributors include age, contact-lens wear, long periods of screen use, smoke, wind, air conditioning, eyelid inflammation, Sjögren syndrome and other autoimmune conditions. Some medicines—including certain antihistamines, antidepressants, acne medicines and blood-pressure medicines—can contribute. Do not stop a prescription medicine without discussing it with the prescriber.
Safe steps to try at home
Use lubricating drops appropriately
Artificial tears are the usual first option for mild symptoms. Choose products sold specifically as eye lubricants. If you need drops frequently, preservative-free single-use or specially designed multidose products may be more comfortable. Gels and ointments last longer but can blur vision, so they are often used at bedtime.
Avoid relying on “get the red out” drops as everyday dry-eye treatment. Some constrict surface blood vessels rather than treating dryness and can cause rebound redness. Never put homemade mixtures, essential oils, honey, lemon juice or non-sterile water into the eyes. Eye drops must be sterile; the U.S. Food and Drug Administration provides current safety advice.
Reduce evaporation and irritation
- Take regular visual breaks and blink fully during screen work.
- Move fans and air-conditioning vents away from your face.
- Use a humidifier in a very dry room and avoid smoke.
- Wear wraparound glasses outdoors in wind.
- Remove contact lenses when your eyes are irritated and follow replacement and cleaning instructions.
Care for the eyelids gently
If blocked oil glands or eyelid inflammation are contributing, a comfortably warm—not hot—compress on closed lids may help, followed by gentle lid massage and cleaning along the lash line. Do not rub or press the eyeball. Stop if care increases pain, swelling or redness.
What an eye-care professional may check
An examination can distinguish dry eye from allergy, infection, corneal injury and other problems. The clinician may check how much tear fluid you make, how quickly tears break up, the surface of the cornea, eyelid position and the oil glands along the lids. The National Eye Institute notes that untreated severe dry eye can sometimes damage the cornea.
Medical treatment options
Treatment is matched to the cause and severity. Options may include:
- Prescription anti-inflammatory drops such as cyclosporine or lifitegrast.
- Short courses of steroid eye drops under close professional supervision; these are not suitable for unsupervised long-term use.
- Treatment for eyelid inflammation or meibomian-gland dysfunction.
- Punctal plugs, which slow drainage and keep tears on the eye longer.
- Special contact lenses or other specialist treatment for severe disease.
- Management of an underlying autoimmune, skin or eyelid condition.
Some clinics offer heat- or light-based procedures for meibomian-gland dysfunction. Evidence and suitability vary, so ask what diagnosis the procedure is treating, what benefits are supported and what risks and costs are involved.
What about omega-3 and other supplements?
Omega-3 supplements are often promoted for dry eye, but a large randomized trial funded by the National Eye Institute found that omega-3 capsules were not better than placebo for typical dry-eye symptoms. Supplements can also interact with medicines and are not a substitute for an examination. Discuss them with a clinician if you are considering them.
When to arrange a routine appointment
Book an eye examination if symptoms persist for several weeks, interfere with reading or driving, require drops many times a day, or are associated with ongoing redness or blurred vision. Bring a list of medicines and eye products and note whether symptoms are worse with screens, contact lenses, certain environments or at particular times of day.
