NEUROPATHIC TONIC PUPILS
\njˌuːɹəpˈaθɪk tˈɒnɪk pjˈuːpə͡lz], \njˌuːɹəpˈaθɪk tˈɒnɪk pjˈuːpəlz], \n_j_ˌuː_ɹ_ə_p_ˈa_θ_ɪ_k t_ˈɒ_n_ɪ_k p_j_ˈuː_p_əl_z]\
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A pupillary abnormality characterized by a poor pupillary light reaction, reduced accommodation, iris sector palsies, an enhanced pupillary response to near effort that results in a prolonged, "tonic" constriction, and slow pupillary redilation. This condition is associated with injury to the postganglionic parasympathetic innervation to the pupil. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp492-500)
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