Quick answer. Blepharitis is a long-term inflammation of the eyelid margins that causes gritty, crusty, red eyelids, often alongside dry eye. It is not sight-threatening and is usually controlled with daily lid hygiene rather than cured outright.
If your eyelids feel gritty, look red along the lash line and crust over in the morning, you may have blepharitis – one of the most common and most persistent eye complaints seen in Singapore. The focus keyword here, blepharitis, simply means inflammation of the eyelid margins, and while it is uncomfortable and tends to recur, it rarely threatens your sight.
It is especially common in adults, in people who already have dry eye, and in our warm, humid, air-conditioned environment where eyelid oil glands can clog easily. This guide explains what blepharitis is, how to tell it apart from a stye or conjunctivitis, and the lid-hygiene routine and treatments that keep it under control.
At a glance
| Condition | What it affects | Typical course |
|---|---|---|
| Blepharitis | Eyelid margins along the lash line, both eyes | Chronic, flares and settles, managed with lid hygiene |
| Stye (hordeolum) | A single tender red lump on or in one eyelid | Acute, often clears in a week or two with warm compresses |
| Conjunctivitis | The conjunctiva (white of the eye), with discharge | Acute, viral or bacterial, often self-limiting or needs drops |
| Dry eye | The tear film over the whole eye surface | Chronic, overlaps with and worsens blepharitis |
| Meibomian gland dysfunction | The oil glands inside the eyelids | Chronic, a common underlying cause of blepharitis |
What is blepharitis?
Blepharitis is chronic inflammation of the eyelid margins – the strip of skin where your eyelashes grow. It comes in two overlapping forms: anterior blepharitis affects the front of the lid around the lashes (often linked to bacteria or dandruff-type skin), while posterior blepharitis affects the meibomian oil glands just behind the lashes, disrupting the oily layer of your tears.
It is very common, particularly in adults and in anyone who already has dry eye, rosacea or oily skin. In Singapore, frequent air-conditioning, screen use and a humid climate can all aggravate the eyelid glands. Blepharitis is not contagious and does not usually damage vision, but it is a long-term condition – the aim is to control flare-ups rather than expect a one-off cure.
Symptoms & signs
Blepharitis usually affects both eyes and is often worse in the morning. Typical features include:
- Gritty, burning or itchy eyelids, as if there is sand in the eye
- Red, swollen or thickened eyelid margins
- Crusting, flakes or scales clinging to the lashes, especially on waking
- Eyelids sticking together after sleep
- Watery eyes or, paradoxically, dry-eye symptoms
- Sensitivity to light and intermittent blurred vision that clears on blinking
- Lashes that fall out, grow in odd directions, or recurrent styes and chalazia
Symptoms tend to come and go in flares rather than steadily worsen.
Causes & risk factors
Blepharitis often has more than one cause acting together. Common contributors include:
- Blocked or poorly functioning meibomian oil glands (meibomian gland dysfunction)
- Overgrowth of normal skin bacteria along the lid margin
- Seborrhoeic dermatitis or dandruff-type skin conditions
- Rosacea, which affects facial skin and the eyelids
- Dry eye, which both causes and is worsened by blepharitis
- Demodex mites living at the base of the lashes
- Allergies or reactions to eye make-up and contact lens products
Risk rises with age, oily skin, and prolonged screen or air-conditioned environments that reduce blinking and tear quality.
How it's diagnosed
Blepharitis is usually diagnosed clinically – a doctor or eye specialist can recognise it from your symptoms and an examination of the eyelid margins. There is no single blood test for it.
An eye specialist will typically examine the lids and lashes under a slit lamp (a magnifying microscope with a bright light) to look at the lid margins, the openings of the oil glands, the tear film and the surface of the eye. They may press gently on the lids to see the quality of the oil being released, and check for associated dry eye. If the picture is unusual, very one-sided, or not responding to treatment, further assessment may be done to exclude other lid conditions.
Treatment options
Blepharitis is managed rather than cured, and consistent daily eyelid care is the foundation of treatment. The main approaches are:
- Warm compresses: a warm, clean cloth held over closed eyes for several minutes to soften the oil and unblock the glands.
- Lid hygiene: gently cleaning the lid margins daily with a clean cloth, cooled boiled water, diluted baby shampoo or a dedicated lid-cleansing product to remove crusts and bacteria.
- Lid massage: light massage along the lid margin after warmth to express the oil glands.
- Lubricating drops: artificial tears for the dry-eye symptoms that often accompany blepharitis.
- Antibiotics: antibiotic ointment or, for more stubborn or rosacea-related cases, a course of oral antibiotics prescribed by a doctor.
- Treating related conditions: managing rosacea, seborrhoeic dermatitis or dry eye improves control.
Most people need to keep up a maintenance lid-hygiene routine even after symptoms settle, because the tendency for blepharitis often persists.
When to see a doctor & which specialist
Mild blepharitis can often be managed at home with warm compresses and lid hygiene. See a doctor if symptoms do not improve after a few weeks of consistent care, keep recurring, or interfere with daily life.
Seek prompt eye care if you develop a painful red eye with reduced or blurred vision, marked light sensitivity, or significant swelling, as these point to a more serious eye problem rather than simple blepharitis. Any sudden change in vision warrants urgent assessment, and if you have severe eye pain with vision loss you should attend A&E or an eye emergency service without delay.
For persistent, recurrent or troublesome eyelid inflammation, an eye specialist can confirm the diagnosis and tailor treatment. You can find one through our directory of the best eye specialists in Singapore.
Related guides
- Best Eye Clinics in Singapore — our editorial shortlist
- eye clinics directory
- Pericarditis
- Interstitial cystitis
- Phimosis
- Peyronie's disease
- OCD
Sources
- NHS – Blepharitis
- Mayo Clinic – Blepharitis
- HealthHub Singapore – Eye Conditions
- SingHealth – Eye Conditions and Treatments
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