Paediatric
Paediatric Blepharokeratoconjunctivitis (BKC)
Also known as: BKC, blepharokeratoconjunctivitis, paediatric blepharitis, childhood blepharitis, recurrent chalazia child, chronic red eye child, staphylococcal blepharitis child, marginal keratitis child
Filed as: Soon
Source-cited from the record's own evidence list. Clinical content programme led by Dr Ankit Mathur, PhD, Grad Cert Ocu Thera, B.S. Optom. How the clinical content is governed
Clinical decision support only
Overview
Chronic lid-margin inflammation with corneal and conjunctival involvement in children. Bimodal presentation with a peak around 4-5 years and a second peak in adolescence, range 6 months to adolescence. It is the paediatric anterior-segment diagnosis most often missed: reported diagnostic delay is 1 to 3 years, because the presentation overlaps with 'recurrent conjunctivitis', 'allergy' and 'styes'. A unified diagnostic definition was only established in 2024. Sight loss comes from corneal scarring, neovascularisation and consequent refractive or deprivation amblyopia.
Recognition
Symptoms: what patients report
- Chronic or recurrent bilateral red, irritable eyes, often described by parents as 'conjunctivitis that keeps coming back'.
- Photophobia — an important symptom because it is associated with corneal involvement.
- Recurrent lid lumps (chalazia), frequently multiple and bilateral.
- Grittiness, burning, crusted lashes on waking.
- Symptoms often long-standing by the time of presentation — a history measured in months to years is typical rather than exceptional.
Signs: what the examination shows
- Lid margin telangiectasia, collarettes, crusting, meibomian gland capping and inspissation.
- Recurrent or multiple chalazia — the single most useful prompt to examine the lid margin properly.
- INFERIOR corneal punctate epithelial erosions and marginal infiltrates — the inferior distribution reflects lid-margin contact and distinguishes it from adenoviral or allergic patterns.
- Peripheral corneal neovascularisation, pannus and, in advanced disease, central corneal scarring.
- Phlyctenules — nodular limbal or corneal lesions representing a hypersensitivity response.
- Conjunctival hyperaemia, papillary reaction, sometimes with a bulbar limbal component.
What OptoGuide™ covers for paediatric blepharokeratoconjunctivitis (bkc)
- Pattern reasoning: what this combination of findings points to, and its differentiators
- Don't-miss risks and escalation triggers
- Management tiers with linked Australian therapeutics
- Referral urgency, specialty, and letter drafting
Sources
- Blepharokeratoconjunctivitis (BKC) of Childhood — EyeWiki
- Pediatric Eyelid Margin Disease / Blepharokeratoconjunctivitis — AAO disease review
- Paediatric blepharokeratoconjunctivitis: a review (Advances in Therapy 2025)
- Optometry Board of Australia — Board-approved scheduled medicines list for endorsed optometrists
- Pediatric Ocular Surface Inflammatory Diseases: Clinical Features and Practice Patterns. Fung SSM, Boghosian T, Perez C, et al. Cornea. 2026;45(10):1279-1285.
- Definition and Diagnostic Criteria for Pediatric Blepharokeratoconjunctivitis. Morales-Mancillas NR, Velazquez-Valenzuela F, Kinoshita S, et al. JAMA Ophthalmology. 2024;142(1):39-47.
- Blepharokeratoconjunctivitis in Childhood: Corneal Involvement and Visual Outcome. Rodríguez-García A, González-Godínez S, López-Rubio S. Eye (London, England). 2016;30(3):438-46.
Standard texts: Kanski's Clinical Ophthalmology: A Systematic Approach.