Pupillary reflex to light: mechanism and clinical significance
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Pupillary reflex to light: mechanism and clinical significance
Pupillary reflex to light (also called photomotor reflex) is a nerve reflex that modulates the diameter of the pupil in response to the...
Aug 24, 2022
Afferent Pupillary Defect Causes
RAPD - Relative afferent pupillary defect - optic neuritis #drarshadchildspecialist | Dr. Arshad Mehmood - Child Specialist
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Abnormal Pupils Made Easy 🔹 Afferent Pathway Abnormalities Marcus Gunn pupil (Relative Afferent Pupillary Defect – RAPD) 🔹 Efferent / Parasympathetic Abnormalities Oculomotor nerve palsy (CN III palsy) – dilated, non-reactive pupil Adie’s (Tonic) pupil Pharmacologic mydriasis 🔹 Sympathetic Pathway Abnormalities Horner syndrome – miosis, ptosis, anhidrosis 🔹 Midbrain / Brainstem Syndromes Argyll Robertson pupil – light-near dissociation Light-near dissociation (general category) Parinaud (dor
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Abnormal Pupils Made Easy 🔹 Afferent Pathway Abnormalities Marcus Gunn pupil (Relative Afferent Pupillary Defect – RAPD) 🔹 Efferent / Parasympathetic Abnormalities Oculomotor nerve palsy (CN III palsy) – dilated, non-reactive pupil Adie’s (Tonic) pupil Pharmacologic mydriasis 🔹 Sympathetic Pathway Abnormalities Horner syndrome – miosis, ptosis, anhidrosis 🔹 Midbrain / Brainstem Syndromes Argyll Robertson pupil – light-near dissociation Light-near dissociation (general category) Parinaud (dor
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A consensual pupillary reflex is the response of a pupil to light that has entered the contralateral eye. #ophthalmology #cranialnerves https://www.instagram.com/geekymedics/ | Geeky Medics
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👁️ The earliest clue to optic nerve damage? RAPD – Relative Afferent Pupillary Defect. Quick to miss, crucial to catch. 📌 Save this gem for NEET PG prep. . . #neetpg #ophthofacts #rapd #clinicalsigns #prepladder #medstudenttips #pgprep #medical #medicalstudent #medicalstudy #medicalpreparation | PrepLadder Medical
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Dr.parthasarathy memorial eye hospital on Instagram: "Relative Afferent Pupillary Defect (RAPD), also called a Marcus Gunn pupil, is an important sign doctors check during an eye examination. It occurs when one eye’s optic nerve or severe retinal pathways are not working properly, so the pupils respond unequally to light. When a light is shone in the healthy eye, both pupils constrict normally. But when the light is moved to the affected eye, the pupils paradoxically dilate instead of constricti
Dr.parthasarathy memorial eye hospital on Instagram: "Relative Afferent Pupillary Defect (RAPD), also called a Marcus Gunn pupil, is an important sign doctors check during an eye examination. It occurs when one eye’s optic nerve or severe retinal pathways are not working properly, so the pupils respond unequally to light. When a light is shone in the healthy eye, both pupils constrict normally. But when the light is moved to the affected eye, the pupils paradoxically dilate instead of constricti
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