An Unusual Case of Benign Episodic Bilateral Mydriasis.

Ahn, Ye Rim; Kim, Han Ul; Kim, Yerim; Choi, Youn Joo

doi:2019.60.9.901

J Korean Ophthalmol Soc > Volume 60(9); 2019 > Article

Case Report

Journal of the Korean Ophthalmological Society 2019;60(9):901-904.
DOI: https://doi.org/10.3341/jkos.2019.60.9.901 Published online September 15, 2019.

An Unusual Case of Benign Episodic Bilateral Mydriasis.

Ye Rim Ahn, Han Ul Kim, Yerim Kim, Youn Joo Choi

¹Department of Ophthalmology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea. ophdrchoi@gmail.com
²Department of Neurology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.

양안에서 발생한 양성 간헐동공산대 1예

안예림¹ · 김한얼¹ · 김예림² · 최연주¹

한림대학교 의과대학 강동성심병원 안과학교실¹, 한림대학교 의과대학 강동성심병원 신경과학교실²

Correspondence: Youn Joo Choi,
Email: ophdrchoi@gmail.com

Received: 14 March 2019 • Revised: 1 May 2019 • Accepted: 16 August 2019

Abstract

PURPOSE
Although benign episodic mydriasis has been rarely reported worldwide, most of the reports so far have occurred in unilaterally. To report an unusual case of benign episodic bilateral mydriasis. CASE SUMMARY: Nineteen-year-old woman who presented with intermittent dilation of both pupils two months ago. She had difficulty on reading and doing tasks because of her visual blur. This symptom usually lasted for 1–2 hours, occurred once every 2–3 days, most frequently during stressful situations. Headaches and dizziness accompanied the eye symptoms, and her pupils were both 5 mm in a lighted room and both 7 mm in a dark room. All tests, including brain magnetic resonance imaging, showed no abnormal findings. We diagnosed her as benign episodic bilateral mydriasis. The frequency of her symptoms decreased during the university vacation period. CONCLUSIONS: In the absence of ophthalmologic or neurologic abnormalities other than headaches in patients with transient mydriasis, benign episodic mydriasis should be considered as a differential diagnosis. Although benign episodic bilateral mydriasis has a unilateral predominance, for the first time the authors report that benign episodic mydriasis may occur in both eyes during same episode.

Key Words: Benign episodic mydriasis;Mydriasis;Pupil