Homonymous Quadrantanopia Caused by Occipital Lobe Ulegyria
10.3341/jkos.2019.60.2.201
- Author:
Junyeop LEE
1
;
Won Jae KIM
Author Information
1. Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea. eyekwj@ynu.ac.kr
- Publication Type:Case Report
- Keywords:
Brain injuries;
Hemianopsia;
Visual fields
- MeSH:
Brain;
Brain Injuries;
Color Vision;
Follow-Up Studies;
Hemianopsia;
Humans;
Magnetic Resonance Imaging;
Neuroimaging;
Occipital Lobe;
Pupil;
Refractive Surgical Procedures;
Visual Acuity;
Visual Field Tests;
Visual Fields
- From:Journal of the Korean Ophthalmological Society
2019;60(2):201-204
- CountryRepublic of Korea
- Language:Korean
-
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.
