Reduced retinal ganglion cell complex thickness in patients with posterior cerebral artery infarction detected using spectral-domain optical coherence tomography.
OBJECTIVE
To report a reduction in macular ganglion cell complex (GCC) thickness detected with spectral-domain optical coherence tomography (SD-OCT) in patients with homonymous hemianopia following acquired cerebral damage.


METHODS
We analyzed case reports of three patients with unilateral posterior cerebral artery (PCA) infarction. Three patients (aged 66, 68, and 71 years) with left homonymous hemianopia due to infarction of the right PCA territory were studied using SD-OCT. The duration of the lesions from the onset ranged from 12 to 36 months.


RESULTS
In all of these patients, although optic atrophy and retinal nerve fiber layer defects were not detected on funduscopy, GCC thinning was demonstrated in the hemiretinae corresponding to the affected hemifields. Macular GCC measurements showed the localized defects of retinal ganglion cells (RGCs) more clearly than circumpapillary retinal nerve fiber layer measurements. Total and outer retinal thicknesses were not found to be significantly affected.


CONCLUSIONS
Our findings suggest that degeneration of RGCs can occur within a few years after PCA infarction.
Department of Sensory Science, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288 Matsushima, Kurashiki, Okayama 701-0193, Japan.
Tsutomu
T
Yamashita
Atsushi
A
Miki
Yasuyuki
Y
Iguchi
Kazumi
K
Kimura
Fumiatsu
F
Maeda
Junichi
J
Kiryu
D000368:Aged; D005260:Female; D006423:Hemianopsia / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D020762:Infarction, Posterior Cerebral Artery / Q000150:complications*; D008279:Magnetic Resonance Imaging; D008297:Male; D009412:Nerve Fibers / Q000473:pathology*; D012164:Retinal Diseases / Q000175:diagnosis / Q000209:etiology*; D012165:Retinal Ganglion Cells / Q000473:pathology*; D041623:Tomography, Optical Coherence; D014794:Visual Fields