Graefes Arch Clin Exp Ophthalmol (2017) 255:1837–1842 DOI 10.1007/s00417-017-3721-y NEUROPHTHALMOLOGY Chromatic pupillography in hemianopia patients with homonymous visual field defects 1,2 1 1,3 1,4 Fumiatsu Maeda & Carina Kelbsch & Torsten Straßer & Karolína Skorkovská & 1 1 1 Tobias Peters & Barbara Wilhelm & Helmut Wilhelm Received: 18 February 2016 /Revised: 31 May 2017 /Accepted: 13 June 2017 /Published online: 30 June 2017 Springer-Verlag GmbH Germany 2017 Abstract controls [maximal constriction: 35.6 ± 5.9% (hemianopia) to Purpose The pupil light reflex is considered to be a simple 42.3 ± 5.7% (normal); p = 0.004; 3 s after stimulus onset: subcortical reflex. However, many studies have proven that p = 0.004; stimulus offset: p = 0.001]. No significant differences patients with isolated occipital lesions with homonymous in any parameter were found between the two groups using the hemianopia show pupillary hemihypokinesia. Our hypothesis blue stimulus. is that the afferent pupillary system consists of two pathways: Conclusions The results support the hypothesis that the one via intrinsically photosensitive retinal ganglion cells ipRGC pathway is mainly subcortical, whereas a second, (ipRGCs), the other running through the normal RGCs via non-ipRGC pathway via the occipital cortex exists. the visual cortex. The purpose
Graefe's Archive for Clinical and Experimental Ophthalmology – Springer Journals
Published: Jun 30, 2017
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