Relative Afferent Pupillary Defect (RAPD) 🔦👁️ RAPD is an important clinical sign indicating asymmetric optic nerve or severe retinal dysfunction. ✔️ Detected using the Swinging Flashlight Test ✔️ Commonly seen in optic neuritis, optic nerve damage, and advanced retinal disease ✔️ Helps differentiate neurological vs ocular causes of vision loss A simple torch test, yet a powerful diagnostic clue in clinical practice. 📚 Continuous learning, one step every day #Optometry #ClinicalOptometry #RAPD #NeuroOptometry #EyeExamination #StudyWithNithyaOptom #Eyecare #Torchlightexamination #Opticnerve #dhaoptometrists #EyeHospitals #Eyeclinic #Continuouslearning #Learneveryday
RAPD Diagnosis with Swinging Flashlight Test
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CT Brain – Emergency vs Routine Protocols 🩻This is the same scan but the priorities are really different. Look at this … 🩻☢️Emergency CT Brain 🩻Priority: Speed & life-saving diagnosis • Non-contrast first • Rapid positioning & minimal adjustments • Coverage: Foramen magnum → vertex • Focus on: Hemorrhage, acute stroke, trauma, mass effect • Thicker slices acceptable for faster scan • Contrast only if clinically indicated (CTA / follow-up) ⸻ 🩻☢️Routine CT Brain 🩻Priority: Image quality & detailed assessment • Non-contrast ± contrast (based on indication) • Careful positioning & alignment (OML/IOML) • Optimized kVp & mAs • Thinner slices for better detail • Used for: tumors, follow-up, chronic conditions ⁉️⁉️Common Mistakes -Using routine protocol in emergencies → delays -Extending scan length unnecessarily -Poor head alignment → artifacts.
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