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🎧MSRA Podcast:Entropion — When Eyelashes Turn Against You
Welcome to the DeepDive. Today we’re looking at entropion, adeceptively simple but important topic for MSRA revision and real-life generalpractice. This eyelid condition might seem minor at first glance, but leftuntreated it can lead to corneal damage andvision loss.

👁️What Is Entropion?
Entropion is whenthe eyelid margin turns inward, typicallythe lower lid, causing eyelashes to rub against the cornea and conjunctiva.
Key symptomsinclude:
• Foreign body sensation
• Tearing (epiphora)
• Redness and irritation
• Photophobia and possible blurred vision

💡Mnemonic for Causes —A-S-T-I-C-T-B:
• Ageing — most common cause
• Scarring (from surgery, trauma, or infection)
• Trauma
• Inflammatory eye conditions
• Congenital (present from birth)
• Trachoma
• Bell’s palsy (7th nerve palsy)

🧠Risk Factors:
• Age 60
• Previous eye surgery
• Chronic blepharitis or conjunctival scarring
• Neurological disorders (e.g., facial nervepalsy)

📊Epidemiology (UK):
• More common in older adults
• Exact prevalence unclear, but frequentlyencountered in ophthalmic practice

🔬Pathophysiology:
• Inward rotation ofthe eyelid causes lashes to chronically abradethe cornea
• Can lead to corneal abrasion, ulceration, and potentially vision-threateningcomplications

🩺DifferentialDiagnosis:
• Ectropion — outward turning of the eyelid
• Trichiasis — misdirected lashes with a normallid margin
• Spastic entropion — intermittent inward turningdue to orbicularis spasm
• Other causes ofred or irritated eyes, including blepharitis,foreign body, or conjunctivitis

🧪Diagnosis:
• Primarily clinical, no advanced tests needed
• Key signs: Inward-turning lid, lashes contacting the globe, cornealstaining with fluorescein
• Use a slit lamp if available to detect subtle cornealdamage

💊Management(MSRA-aligned):
Conservative (mild cases):
• Lubricating drops/ointment
• Taping the eyelid outward
• Protective eyewear
• Temporary measureslike botulinum toxin if needed
Surgical (persistent/moderate-severe cases):
• Definitive treatment
• Techniques vary —usually involve tightening and repositioningthe lower lid
• Aims to preventfurther abrasion or ulceration

⚠️Complications (IfUntreated):
• Corneal abrasions
• Corneal ulcers and scarring
• Conjunctivitis
• Permanent vision loss if corneal damage issignificant

📈Prognosis:
• Generally excellent if treated early
• Surgical correction is highly effective
• Delays intreatment increase risk of complications

🧠MSRA Key SummaryPoints:
• Entropion = inward eyelid turn
• Causes eye irritation, foreignbody sensation, watering, and potential corneal damage
• Diagnosed clinically — watch for inward lashes rubbing the eye
• Treatconservatively (drops/tape) or surgically (if persistent/severe)
• Remember ASTICTB for causes
• Prognosis is goodwith early management

📚Entropion MSRARevision Resources:
📝 Revision Notes:
https://www.passthemsra.com/topic/entropio... (https://www.passthemsra.com/topic/entropio...)
🃏 Flashcards:
https://www.passthemsra.com/topic/entropio... (https://www.passthemsra.com/topic/entropio...)
📖 Accordion Q&A Notes:
https://www.passthemsra.com/topic/entropio... (https://www.passthemsra.com/topic/entropio...)
🧠 Rapid Quiz:
https://www.passthemsra.com/topic/entropio... (https://www.passthemsra.com/topic/entropio...)
🎯 Direct Quiz Link:
https://www.passthemsra.com/quizzes/entrop... (https://www.passthemsra.com/quizzes/entrop...)

🌐Explore MoreHigh-Yield Resources:
https://www.passthemsra.com (https://www.passthemsra.com)
https://www.freemsra.com (https://www.freemsra.com)
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Episode link: https://play.headliner.app/episode/2723289...