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J Glaucoma. 2014 Sep;23(7):419-23. doi: 10.1097/IJG.0b013e31827b1522.

Correlation between intereye difference in visual field mean deviation values and relative afferent pupillary response as measured by an automated pupillometer in subjects with glaucoma.

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1
*Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, IL †Konan Medical USA, Irvine, CA.

Abstract

PURPOSE:

To evaluate the effectiveness of a new binocular infrared computerized pupillometer in the quantitative measurement of the relative afferent pupillary response in patients with glaucoma by assessing the correlation of the intereye difference in visual function as measured by standard automated perimetry (SAP) with the intereye difference in the afferent pupillary response.

METHODS:

Twenty-three patients with glaucoma underwent examination with a prototype, automated, binocular pupillometer. Correlation between the intereye difference in the afferent pupillary response and the intereye difference in mean deviation (MD) was explored.

RESULTS:

Within 7 months of pupillography, all patients underwent SAP using the Humphrey Field Analyzer IIi, 24-2, Swedish Interactive Threshold Algorithm. The intereye differential pupillary response was 0.69±0.59 (log units, mean±SD). The intereye difference in MD was 5.67±5.29 dB (mean±SD). There was a strong correlation between the intereye difference in the afferent pupillary response and the intereye difference in MD (Spearman correlation coefficient, r = -0.77; P<0.001).

CONCLUSIONS:

A new, binocular computerized pupillometer provides an automated method for the quantitative assessment of the afferent pupillary response. The intereye asymmetry in the pupil response correlates strongly with asymmetry in visual function, as measured by SAP, in patients with glaucoma.

PMID:
23337433
DOI:
10.1097/IJG.0b013e31827b1522
[Indexed for MEDLINE]
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