Quantifying 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 Sb...

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Bibliographic Details
Published in:British journal of ophthalmology 2002-09, Vol.86 (9), p.985-987
Main Authors: McCormick, A, Bhola, R, Brown, L, Squirrel, D, Giles, J, Pepper, I
Format: Article
Language:English
Subjects:
Analysis
Biological and medical sciences
Defects
Female
Flashlights
Glaucoma and intraocular pressure
Humans
Light
Male
Medical examination
Medical sciences
neutral density filters
Ophthalmology
Orthoptics - instrumentation
Pupil (Eye)
Pupil Disorders - pathology
relative afferent pupillary defect
Sbisa bar
Scientific Correspondence
Citations: Items that cite this one
Online Access:Get full text
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Description
Summary: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 amblyopia and is of a similar construct to NDFs. Before this clinical part of the study the luminance for each filter was measured, which enabled a direct comparison to be made. Results: In the analysis of patients with RAPD a high correlation was found when comparing the Sbisa and NDF bars r = 0.95. This was statistically significant (p =
ISSN:0007-1161
1468-2079
DOI:10.1136/bjo.86.9.985