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Figure-23 | Enhanced Mydriasis in Response to Hydroxyamphetamine | Enhanced mydriasis in response to hydroxyamphetamine in a 77-year-old woman with a long-standing, preganglionic, right-sided Horner's syndrome that occurred following cervical neck dissection for thoracic outlet syndrome 30 years earlier. Miosis of the right pupil is apparent in room light (top). Th... | Diagnostic Use, p-Hydroxyamphetamine; Pharmacology, p-Hydroxyamphetamine; Drug Effects, Pupil; Pharmacology, Amphetamines; Horner Syndrome; Testing, Pupillary Drop; Effects of Drugs on the Pupils |
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Figure-06 | The Normal Pupillary Light Reflex | The normal pupillary light reflex is initiated following exposure to light. After a brief latency, both the right (solid line) and left (broken line) pupil constrict, then undergo a small amount of redilation (escape), followed by oscillations (hippus) if the light is sustained. Hippus is not a path... | Reflex, Pupillary; Examination, Pupillary |