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Relating to the pupil.
Farlex Partner Medical Dictionary © Farlex 2012


Relating to the pupil.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
relative pupillary constriction =- [(baseline pupil diameter - maximally constricted pupil diameter)/ (baseline pupil diameter)] * 100%, (1)
She also admitted using tramadol, opium, and opioid derivatives; these substances induce a paradoxical effect on her pupil leading to pupillary constriction. The patient had no prior history of head trauma, brain tumors, or any other neurological conditions.
Relative change: a) pupillary contraction amplitude, b) rate of pupillary constriction, for a single participant in subsequent stages of measurement
Broncho-constriction, hyper salivation, lacrimation, excessive sweating, frequent involuntarily urination/ defecation and miosis (pupillary constriction) were observed in two animals which may be due to stimulation of muscarinic receptors activity as commonly observed in organo-phosphorus toxicity.
Symptoms most commonly reported by the 34 farm workers were nausea (97%), headache (94%), eye irritation (85%), muscle weakness (82%), tearing (68%), vomiting (79%), and salivation (56%); the most commonly observed signs were bradycardia (21%), diaphoresis (15%), and miosis (pupillary constriction) (12%) (Table 1).
Total 166 234 400 None of the subjects with ptosis had other features, suggesting either a 3rd cranial nerve palsy (pupillary dilatation, gaze palsy) or Horner's syndrome (pupillary constriction, ipsilateral loss of sweating).
This explains why a unilateral light stimulus evokes a bilateral (direct and consensual) and symmetrical pupillary constriction. Damage to this part of the pathway leads to light-near dissociation (where the near response is normal but the light response is defective).
Slit lamp examination showed segmental, vermiform movements of the affected pupil in all the 3 patients, with bunching up of the iris and no typical brisk pupillary constriction. All extra ocular movements were normal.
The dynamic pupillometer averages pupillary size before pupillary constriction, that is, during an initial latency period of approximately 200 milliseconds.
Clear visualization is especially effective in the demonstration of pupillary constriction in the first videotape.
If so, then there could be physiological anisocoria or a lesion affecting the sympathetic pathway, because pupillary constriction controlled by the parasympathetic pathway is intact (the size of anisocoria will increase in darker light conditions).