What does blepharitis mean?
Blepharitis is a medical noun denoting inflammation of the eyelids, most commonly along the margins where the eyelashes emerge. Sufferers typically experience redness, itching, burning, crusting around the lashes, and a gritty sensation in the eyes. The condition may be classified by location — anterior, affecting the outer lid edge, or posterior, involving the meibomian glands inside the lid — or by cause, such as seborrheic or staphylococcal forms. Blepharitis is often chronic and recurrent rather than curable outright, and management usually centres on diligent eyelid hygiene, warm compresses, and sometimes antibiotic or anti-inflammatory treatment. Derived from the Greek word for eyelid, 'blepharon', combined with the suffix '-itis' meaning inflammation, the term belongs to the same naming pattern as arthritis and dermatitis. It appears almost exclusively in clinical, ophthalmological, and health-education writing, making it precise vocabulary for describing one of the most common presentations seen in eye-care practice.
nounInflammation of the eyelids, typically affecting the margins where the eyelashes grow, causing redness, irritation, crusting, and sometimes flaking or swelling.
- Inflammation of the eyelids, especially at the margins where the eyelashes grow, typically producing redness, crusting, itching, and flaking.
"The ophthalmologist diagnosed chronic blepharitis and recommended daily warm compresses along the lash line."
"She struggled with blepharitis for months before an optometrist prescribed lid hygiene routines that finally brought relief."
"Anterior blepharitis is often associated with dandruff of the scalp and eyebrows."
Rarely pluralised in practice; the singular is standard because clinicians usually refer to the condition generically. The Latinate plural 'blepharitides' exists on the model of other '-itis' terms but is seldom seen outside specialist pathology writing.
"Various blepharitides were catalogued in the nineteenth-century ophthalmic literature."
The word comes from the Greek for 'eyelid' — so every time you blink, you're using a blepharon.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of blepharitis
Blepharitis derives from the ancient Greek word 'blepharon', meaning eyelid, joined to the suffix '-itis', which Greek-derived medicine uses to denote inflammation. The compound follows the same classical naming convention as arthritis (inflammation of a joint) and dermatitis (inflammation of the skin). Related English coinages from the same root include 'blepharospasm' (involuntary eyelid twitching) and 'blepharoplasty' (eyelid surgery). The word entered modern medical Latin before being adopted into general medical English.
Related word forms
How blepharitis is actually used
A clinical term used almost exclusively in medical and optometric contexts; it is not part of everyday conversation. It carries no figurative or informal usage.
Easily confused with blepharitis
Conjunctivitis is inflammation of the conjunctiva (the membrane lining the eye), whereas blepharitis is inflammation of the eyelid margins themselves.