Quantification of relative afferent pupillary defects induced by posterior sub-Tenon's, peribulbar, and retrobulbar anaesthetics
نویسندگان
چکیده
منابع مشابه
Quantification of relative afferent pupillary defects induced by posterior sub-Tenon's, peribulbar, and retrobulbar anaesthetics.
AIMS The effect of local anaesthetics on optic nerve function can be investigated by quantifying the relative afferent pupillary defect (RAPD). METHODS The study compared the depth of induced RAPD following posterior sub-Tenon's, retrobulbar, and peribulbar local anaesthetics using crossed polarising filters before cataract surgery (time 1 = 5 minutes), immediately after surgery (time 2 = 42 ...
متن کاملQuantification of relative aVerent pupillary defects induced by posterior sub-Tenon’s, peribulbar, and retrobulbar anaesthetics
Aims—The eVect of local anaesthetics on optic nerve function can be investigated by quantifying the relative aVerent pupillary defect (RAPD). Methods—The study compared the depth of induced RAPD following posterior subTenon’s, retrobulbar, and peribulbar local anaesthetics using crossed polarising filters before cataract surgery (time 1 = 5 minutes), immediately after surgery (time 2 = 42 minut...
متن کاملPupillographic characteristics of simulated relative afferent pupillary defects.
Relative afferent pupillary defects were simulated in normal individuals by performing the alternating light test while dimming the light in front of one eye with neutral density filters. Pupillary responses were elicited using a binocular photostimulator and recorded using a binocular television pupillometer. In five subjects, four spatial variables of the pupillary response--contraction ampli...
متن کاملQuantifying relative afferent pupillary defects using a Sbisa bar.
AIM To compare the Sbisa bar (Bagolini filter bar) with neutral density filters (NDF) in quantifying relative afferent pupillary defects (RAPD). METHODS 11 patients with a RAPD were graded and a neutral density filter bar was used to quantify the RAPD. This was repeated using the Sbisa bar. The Sbisa bar (Bagolini filter bar) is used by orthoptists to quantify density of suppression in amblyo...
متن کاملAssessment of unilateral afferent pupillary defects by pupillography.
A pupillographic technique, an adaptation of the swinging light test, is described for the measurement of unilateral afferent pupillary defects. In normal persons it yielded accurate, reproducible estimates of the magnitude of artificial afferent defects made with neutral filters of 1 to 4 log units density. In 15 studies on 8 patients with unilateral optic neuritis and 2 with unilateral compre...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 2001
ISSN: 0007-1161
DOI: 10.1136/bjo.85.12.1445