Opthal: Raised Intraocular Pressure: Free MSRA Podcast

🎧 Deep Dive: Raised Intraocular Pressure — Why That Tiny Number MattersIOP might seem like a routine stat, but elevated intraocular pressure is a red flag for glaucoma — one of the leading causes of irreversible blindness. Whether you're revising for the MSRA or just want clarity on this common finding, this episode breaks it all down.🔍 What Is IOP?• Normal range: 10–21 mmHg• Raised IOP = risk of optic nerve damage (especially in glaucoma)💡 Mnemonic: "High Pressure = High Risk"💣 Causes of Raised IOP• Primary open-angle glaucoma (most common)• Angle-closure glaucoma (acute emergency)• Steroid use (drops/inhalers)• Ocular hypertension (↑IOP, no damage)• Uveitis, trauma, pseudoexfoliation🧬 Who’s at Risk? (Mnemonic: AGE PRESS)• Ageing• Genetics (family history)• Ethnicity (Black, Asian, Hispanic)• Previous trauma• Rx: Long-term steroids• Eye surgery• Systemic disease (e.g. diabetes)• Structural issues (narrow angles)🧪 Pathophysiology SimplifiedAqueous humour builds up → drainage can’t keep up → pressure rises → optic nerve fibres compressed → visual field loss → blindness.💡 Like a clogged sink building pressure inside the eye.🩺 Is High IOP Always Glaucoma?No. It could also be:• Ocular hypertension• Uveitis-related IOP rise• Steroid-induced• PseudoexfoliationAssess pressure + nerve + field + angle📊 Epidemiology (UK)• Glaucoma: ~2% over 40• OHT: ~4–7% over 40Often asymptomatic – especially in older adults.😶 Symptoms – or Lack Thereof• Usually silent (no pain/redness early on)• Late: Peripheral vision loss• Acute angle-closure: Pain, halos, headache, nausea = Emergency🧠 Key Diagnostic Tests (Mnemonic: TOP-VOG)Tonometry – IOPOCT – optic nervePachymetry – corneal thicknessVisual field – perimetryOphthalmoscopy – disc cuppingGonioscopy – drainage angle💊 Management Options✅ First-line: Drops• Prostaglandin analogues – ↑ outflow• Beta-blockers / CAIs – ↓ production• Combo therapy if needed✅ Laser – Trabeculoplasty✅ Surgery – Trabeculectomy, MIGSOHT: Often monitor first unless IOP >24 mmHg🧴 Eye Drop Tips• Use consistently• Apply punctal occlusion (press inner eye corner)• Wipe excess to reduce skin irritation• Set reminders for adherence⚠️ Complications (If Untreated)• Irreversible optic nerve damage• Progressive peripheral field loss• Permanent blindness📚 MSRA Revision Cheat Sheet• Raised IOP ≠ glaucoma, but ↑ risk• Silent early → regular screening essential• Always assess IOP + nerve + fields + angles• Treat with drops, laser, or surgery• Long-term monitoring = vision protection🔗 MSRA Resources on Raised IOP📝 Revision Notes:https://www.passthemsra.com/topic/raised-intraocular-pressure-revision-notes/🃏 Flashcards:https://www.passthemsra.com/topic/raised-intraocular-pressure-flashcards/📂 Accordion Q&A Notes:https://www.passthemsra.com/topic/raised-intraocular-pressure-accordion-qa-notes/🎯 Rapid Quiz:https://www.passthemsra.com/topic/raised-intraocular-pressure-rapid-quiz/🧠 Quiz:https://www.passthemsra.com/quizzes/raised-intraocular-pressure/🌐 Main Sites:https://www.passthemsra.com | https://www.freemsra.com🧠 Final TakeawayWhat you can’t feel might be the biggest threat to your vision. Raised IOP is easy to miss and hard to reverse once damage sets in. So test, treat, and track early.#MSRA #Ophthalmology #RaisedIOP #IntraocularPressure #Glaucoma #MSRARevision #PasstheMSRA #FreeMSRA #EyeHealth #MSRAFlashcards #MSRAQuiz #VisualFields #SilentThreat