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Graefe's Archive for Clinical and Experimental Ophthalmology

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01-06-2009 | Neuro-ophthalmology

Pupil campimetry in patients with retinitis pigmentosa and functional visual field loss

Authors: Karolína Skorkovská, Holger Lüdtke, Helmut Wilhelm, Barbara Wilhelm

Published in: Graefe's Archive for Clinical and Experimental Ophthalmology | Issue 6/2009

Abstract

Background

The aim of our study was to test in a small series of cases if pupil perimetry can prove real concentric visual field loss in retinal degeneration and distinguish from feigned visual field loss.

Methods

By means of infrared-video-pupillography, light responses to perimetric stimuli were recorded. The stimulus pattern consisted of 41 stimuli presented in the central 30° visual field. Stimulus intensity was 140 cd/m². 5 healthy subjects, 6 patients with retinitis pigmentosa and 2 patients with suspected functional visual field loss were examined.

Results

Pupil perimetry was able to reproduce the visual field in retinitis pigmentosa very well. Normal subjects and patients with suspected feigned visual field loss showed normal pupillomotor fields, different from the findings in retinitis pigmentosa.

Conclusions

This study provides sufficient evidence that pupil campimetry is applicable for differentiating between retinal dystrophy and functional concentric visual field loss. Possible residual light sensitivity of the blind retina due to melanopsin ganglion cells is obviously not sufficient to provide a pupillary light response to perimetric stimuli.

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Title: Pupil campimetry in patients with retinitis pigmentosa and functional visual field loss
Authors: Karolína Skorkovská
Holger Lüdtke
Helmut Wilhelm
Barbara Wilhelm
Publication date: 01-06-2009
Publisher: Springer-Verlag
Published in: Graefe's Archive for Clinical and Experimental Ophthalmology / Issue 6/2009
Print ISSN: 0721-832X
Electronic ISSN: 1435-702X
DOI: https://doi.org/10.1007/s00417-008-1015-0

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Pupil campimetry in patients with retinitis pigmentosa and functional visual field loss

Abstract

Background

Methods

Results

Conclusions

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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