Homonymous Quadrantanopia Caused by Occipital Lobe Ulegyria

Junyeop Lee; Won Jae Kim

doi:10.3341/jkos.2019.60.2.201

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Lee and Kim: Homonymous Quadrantanopia Caused by Occipital Lobe Ulegyria

Case Report

Journal of the Korean Ophthalmological Society 2019; 60(2): 201-204.

Published online: 15 February 2019

DOI: https://doi.org/10.3341/jkos.2019.60.2.201

Homonymous Quadrantanopia Caused by Occipital Lobe Ulegyria

Junyeop Lee, MD, Won Jae Kim, MD

Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea.

Address reprint requests to Won Jae Kim, MD. Department of Ophthalmology, Yeungnam University Hospital, #170 Hyeonchung-ro, Nam-gu, Daegu 42415, Korea. Tel: 82-53-620-4191, Fax: 82-53-626-5936, eyekwj@ynu.ac.kr

Received 20 September 2018 Revised 12 October 2018 Accepted 18 January 2019

The Korean Ophthalmological Society

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

We report a case of homonymous quadrantanopia caused by occipital lobe ulegyria.

Case summary

A 23-year-female was referred to our clinic because of a visual field defect incidentally discovered during preoperative evaluation for refractive surgery at another clinic. However, she did not report any symptoms. She had no systemic diseases. Visual acuity was 20/20 in both eyes, and the color vision test was normal. Both pupils exhibited normal responses to light and near stimulations. In fundus examinations, the right optic disc was normal and the left contained drusen. Automated perimetry revealed right lower homonymous quadrantanopia with macular sparing. Brain magnetic resonance imaging revealed areas of ulegyria involving the left occipital lobe, consistent with the visual field defect. A follow-up visual field test performed 5 months later yielded the same result.

Conclusions

Neuroimaging should be performed in patients with homonymous visual field defects to determine the location and etiology of the brain lesions. Occipital lobe ulegyria can cause homonymous quadrantanopia in the absence of any neurological problem.

Keywords: Brain injuries, Hemianopsia, Visual fields

Figures and Tables

Figure 1

Images of the fundus photograph at the initial visit. The right eye showed normal appearance of optic disc (A). The left eye showed optic disc drusen (B).

Figure 2

The result of visual field test (Humphrey Field Analyzer, Carl Zeiss Meditec, Inc., Dublin, OH, USA) performed at the initial visit. The visual field test demonstrated the right lower homonymous quadrantanopia with macular sparing (A: left eye, B: right eye).

Figure 3

The coronal and axial view of the brain magnetic resonance imaging (MRI, A: axial view, B: coronal view). The MRI demonstrates the focal involvement of ulegyria at the left occipital lobe (A: arrow, B: arrowhead).

Notes

^{Conflicts of Interest} The authors have no conflicts to disclose.

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