| artificial pupil | An opening made by excision of a portion of the iris in order to improve the vision in cases of central opacity of the cornea or lens. (05 Mar 2000) |
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| Bumke's pupil | Dilation of the pupil in response to anxiety or other psychic stimuli. (05 Mar 2000) |
| paradoxical pupil | See: paradoxical pupillary reflex. Pinhole pupil, an extremely constricted pupil. (05 Mar 2000) |
| Marcus Gunn pupil | Relative afferent pupillary defect. Synonym: Gunn pupil. (05 Mar 2000) |
| catatonic pupil | Transient pupillary dilation with absence of pupillary reaction to light and convergence. (05 Mar 2000) |
| cat's-eye pupil | A distorted, elongated pupil; usually due to anterior segment anomaly. (05 Mar 2000) |
| Robertson pupil | <clinical sign> Pupils of the eye which react to accommodation but not to light. Seen in cases of tertiary syphilis. (27 Sep 1997) |
| Gunn pupil | Relative afferent pupillary defect. Synonym: Gunn pupil. (05 Mar 2000) |
| cutaneous pupil reflex | Dilation of the pupil following scratching of the skin of the neck. Synonym: ciliospinal reflex, cutaneous pupil reflex, cutaneous-pupillary reflex, skin-pupillary reflex. (05 Mar 2000) |
| seclusion of pupil | The condition resulting from posterior annular synechia, in which the iris is bound down throughout the entire pupillary margin, but the pupil is not occluded. Synonym: exclusion of pupil. (05 Mar 2000) |
| Holmes-Adie pupil | <syndrome> A condition manifested by usually one tonic pupil with absent tendon reflexes. An idiopathic postganglionic denervation of the parasympathetically innervated intraocular muscles, usually complicated by signs of aberrant regeneration of these nerves: a weak light reaction with segmental palsy of iris sphincter, a strong slow near response. Deep tendon reflexes, particularly ankle and knee, are often asymmetrically reduced. See: tonic pupil. Synonym: Adie's pupil, Holmes-Adie pupil, Holmes-Adie syndrome, pupillotonic pseudotabes. (05 Mar 2000) |
| pupil | 1. A youth or scholar of either sex under the care of an instructor or tutor. "Too far in years to be a pupil now." (Shak) "Tutors should behave reverently before their pupils." (L'Estrange) 2. A person under a guardian; a ward. 3. A boy or a girl under the age of puberty, that is, under fourteen if a male, and under twelve if a female. Synonym: Learner, disciple, tyro. See Scholar. Origin: F. Pupille, n. Masc. & fem, L. Pupillus, pupilla, dim. Of pupus boy, pupa girl. See Puppet, and cf. Pupil of the eye. <anatomy> The aperture in the iris; the sight, apple, or black of the eye. See the Note under Eye, and Iris. <medicine> Pin-hole pupil, the pupil of the eye when so contracted (as it sometimes is in typhus, or opium poisoning) as to resemble a pin hole. Origin: F. Pupille, n. Fem, L. Pupilla the pupil of the eye, originally dim. Of pupa a girl. See Puppet, and cf. Pupil a scholar. Source: Websters Dictionary (01 Mar 1998) |
| Horner's pupil | Constricted pupil due to impairment of sympathetic nerve innervation of the dilator muscle of the pupil. See: Horner's syndrome. (05 Mar 2000) |
| sphincter muscle of pupil | A ring of smooth muscle fibres surrounding the pupillary border of the iris. Synonym: musculus sphincter pupillae, sphincter muscle of pupil. (05 Mar 2000) |
| dilator of pupil | <anatomy> The radial muscular fibres extending from the sphincter pupillae to the ciliary margin; some anatomists regard them as elastic, not muscular, in humans. Synonym: musculus dilator pupillae, dilator iridis, dilator of pupil, musculus dilator iridis. (05 Mar 2000) |