Blepharitis

Overview

Blepharitis is a common condition where the edges of the eyelids become red, swollen, and irritated. It happens when tiny oil glands at the base of the eyelashes get blocked or irritated, leading to inflammation and sometimes flakes or crusts along the eyelid margins.

Yes. Blepharitis is very common, especially in adults. Many people have it at some point in their lives.

Anyone can get blepharitis, but it is more common in people over 40. It also happens more often in people with skin conditions such as dandruff, rosacea, or oily skin.

Symptoms

Common symptoms

• Red, swollen or itchy eyelids
• A gritty or burning feeling in the eyes
• Crusty flakes or dandruff-like scales at the base of the lashes
• Eyelashes that stick together or look greasy
• Watery eyes or sensitivity to light
• Feeling like something is in the eye

Symptoms in children

• Frequent eye rubbing
• Red or crusty eyelids, especially in the morning
• Complaints of a gritty or scratchy feeling in the eyes
• Recurrent styes (painful bumps on the eyelid edge)

Symptoms in older adults

• Drier eyes or a dry, gritty sensation
• More noticeable crusting on the lashes
• Eyelids that stick together when waking
• Increased sensitivity to light or blurred vision

Causes

Main causes

• Blocked oil glands at the edge of the eyelids
• A build-up of normal bacteria on the eyelids
• Dandruff-like flakes that irritate the lid margins
• An overgrowth of tiny mites on the eyelashes (more common in some adults)

Risk factors

• Oily skin or a history of dandruff
• Rosacea (a skin condition that causes facial redness)
• Allergies to eye makeup or contact lens solution
• Dry eye syndrome
• Age over 40

When to see a doctor

See a doctor urgently if:

• Severe eye pain or sudden vision loss
• An eyelid that becomes very red, swollen, or warm (could be a spreading infection)
• Symptoms that get worse quickly over a few hours

Book a routine appointment if:

• Symptoms lasting longer than a week despite regular eyelid hygiene
• Red, swollen eyelids that don't improve with gentle cleaning
• Frequent styes or blepharitis that keeps coming back

Diagnosis

A doctor or eye specialist (optometrist or ophthalmologist) usually diagnoses blepharitis by looking at your eyelids with a special magnifying lamp. They will check the lid margins, lashes, oil glands, and the surface of your eye.

Tests that may be done

• Most of the time no tests are needed.
• Sometimes a swab from the eyelid is sent to a lab to rule out an infection.
• Very rarely, a skin biopsy is done if the cause is unclear.

What to expect at your appointment

The exam is quick and painless. The doctor may press gently on your eyelid to see if oil comes out. They may also check your tear film to see if you have dry eyes. You may be asked to look up, down, and to the sides.

Treatment

Treatment for blepharitis focuses on keeping the eyelids clean and reducing inflammation. Most people need a daily eyelid hygiene routine. If that isn't enough, a doctor may recommend prescription treatments to control symptoms.

Self-care at home

• Apply a warm, clean washcloth to your closed eyelids for 5 to 10 minutes to loosen crusts and soften oils.
• Gently massage your eyelids with a clean fingertip in small circular motions to help release blocked oil.
• Clean the base of your eyelashes with a clean, damp cloth or a doctor-approved eyelid cleanser. Ask your pharmacist or doctor which product is right for you.
• Avoid eye makeup and eyelash extensions during flare-ups.
• Wash your hands well before touching your eyes.

Medical treatments

If daily cleaning is not enough, a doctor may prescribe antibiotic ointments or drops to reduce bacteria. They may also suggest anti-inflammatory treatments, such as topical steroid drops, to calm swelling. In some cases, oral medications are used for a short time. Always follow your healthcare provider’s instructions.

When is surgery considered?

Surgery is rarely needed for blepharitis. It may be considered if a stye becomes a collection of pus that won't drain, or if the eyelid turns in or out and causes ongoing irritation. Most people never need surgery.

Living with this condition

Think of eyelid hygiene like brushing your teeth — it works best when you do it every day. Make it part of your morning or evening routine. Use a clean towel each day and avoid sharing eye makeup or face cloths.

Lifestyle tips

• Keep dandruff under control with regular scalp washing if needed.
• Remove all eye makeup before bed.
• Take breaks from contact lenses during flare-ups.
• Protect your eyes from smoke, wind, and dust, which can worsen irritation.
• Avoid using eyelash curlers or extensions if they seem to make symptoms worse.

Diet and exercise

There is no special diet for blepharitis, but a balanced diet with omega-3 fatty acids (from fish, walnuts, or flaxseed) may help support healthy oil glands. Regular exercise can reduce stress, which some people find helps their symptoms. Always talk to your doctor before starting any supplement.

Mental health and emotional wellbeing

Living with a visible, sometimes uncomfortable condition can be frustrating. It's natural to feel self-conscious about red or crusty eyelids, especially if flaring up is frequent. If it affects your mood or confidence, talk to your healthcare provider. You are not alone, and most people find ways to manage it well.

Prevention

Blepharitis cannot always be prevented, but daily eyelid hygiene can stop flare-ups from becoming severe, and it can reduce how often they happen.

Screening programmes

There is no routine screening for blepharitis, but regular eye exams can help catch it and other eye conditions early.

Complications

If left untreated

• Repeated styes or chalazia (small cysts on the eyelid)
• Dry eye syndrome from long-term inflammation
• Scarring or thickening of the eyelid margins (rare)
• In rare cases, an eye infection affecting the cornea (keratitis) if bacteria spread

Long-term outlook

For most people, blepharitis is a long-term condition, but it is very manageable. With a regular eyelid care routine, most people keep symptoms under control, and serious complications are uncommon. It does not typically cause permanent vision loss.

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