🧠 VISUAL FIELD DEFECTS Localize the Lesion. Predict the Defect. ⸻ 1️⃣ Optic Nerve ➊ Pre-chiasmal lesion ➋ Ipsilateral monocular blindness ➌ Vision loss in one eye only 💡 Think: “One Nerve = One Eye” ⸻ 2️⃣ Optic Chiasm ➊ Compression of crossing nasal fibers ➋ Classically caused by pituitary adenoma ➌ Bitemporal hemianopia 💡 Think: “Can’t see the sides” ⸻ 3️⃣ Optic Tract ➊ Post-chiasmal lesion ➋ Contralateral homonymous hemianopia ➌ Same visual field lost in both eyes 💡 Think: “Tract = Opposite Side Lost” ⸻ 4️⃣ Temporal Lobe (Meyer’s Loop) ➊ Contralateral superior quadrantanopia ➋ Loss of upper visual field quadrant ➌ Temporal lobe lesion 💡 Think: “Pie in the Sky” ⸻ 5️⃣ Occipital Lobe ➊ Contralateral homonymous hemianopia ➋ Macular sparing often present ➌ PCA territory infarction is a classic cause 💡 Think: “Occipital = Opposite Field Lost” ⸻ 🎯 High-Yield Rules ✅ Nasal retinal fibers cross at the chiasm ✅ Temporal retinal fibers do NOT cross ✅ Post-chiasmal lesions cause contralateral defects ✅ Macular sparing suggests occipital lobe involvement ⸻ 🧠 Easy Mnemonic N → C → T → L → O 👁️ Nerve → Monocular Blindness ✖️ Chiasm → Bitemporal Hemianopia 🔵 Tract → Homonymous Hemianopia 🥧 Loop (Meyer’s) → Pie in the Sky 🎯 Occipital → Homonymous Hemianopia Macular Sparing ⸻ 📚 Master Neurology the high-yield way with the MedicoNotes Neurology Book. 🌐 mediconotes.com #Neurology #VisualFieldDefects #Neuroanatomy #MedicalEducation #MedicoNotes

Learn about visual field defects and associated lesions with this TrueLearn infographic! Save to review later! #vision #visualfielddefects #lesions #resident #healthcare #healthcarestudents #healthcareworker #truelearn #infographic

I’m not saying I have poor spatial awareness these days, but when I walk down a busy street I channel strong Richard-Ashcroft-in-the-Bittersweet-Symphony-video vibes. #AZOOR #visualfielddefects

What is a likely cause of these #VisualFieldDefects? Potential answers... A. #PituitaryTumor 🍒 B. #CRAO ☄️ C. #MCAStroke 🧠 D. #Glaucoma ♎️ @EyeRounds @Eyes4Ears ✅ lensophthalmology.com/questi…

The student team that built this great model was made up of: 🧠 Dhritica Bora 👁️🛠️ 🧠 Sam Boxwell 👁️🛠️ 🧠 Meng Jiang 👁️🛠️ 🧠 Demi Oke 👁️🛠️ 🧠 Conor Ring 👁️🛠️ #VisualFieldDefects #Neuro #Vision (with names spelled correctly this time 🙈)