A Case of Convergence Spasm After Head Trauma

Yeon Hee Lee; Eun Kyoung Lee; Yong Jun Yun; Sung Bok Lee

doi:10.3341/jkos.2009.50.5.804

Journal List > J Korean Ophthalmol Soc > v.50(5) > 1008567

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Lee, Lee, Yun, and Lee: A Case of Convergence Spasm After Head Trauma

Original Article

J Korean Ophthalmol Soc 2009;50(5):804-807.

Published online: 7 September 2009

DOI: https://doi.org/10.3341/jkos.2009.50.5.804

A Case of Convergence Spasm After Head Trauma

Yeon Hee Lee, MD^1,², Eun Kyoung Lee, MD¹, Yong Jun Yun, MD¹, Sung Bok Lee, MD, PhD^1,²

¹Department of Ophthalmology, College of Medicine, Chungnam National University, Daejeon, Korea

²Department of Ophthalmology, Chungnam National University Research Institute for Medical Sciences, Daejeon, Korea

Address reprint requests to Sung Bok Lee, MD, PhD Department of Ophthalmology, Chungnam National Hospital #640 Daesa-dong, Jung-gu, Daejeon 301-721, Korea Tel: 82-42-280-7608, Fax: 82-42-255-3745, E-mail: sblee@cnu.ac.kr

Received 25 August 2008 Accepted 23 December 2008

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 convergence spasm that occurred after head trauma.

Case summary

A 18-year-old female presented with intermittent diplopia and decreased vision shortly after head trauma. Her past medical history was non-specific, except myopia in the left eye. On the initial examination, her uncorrected visual acuity and was variable (0.1∼1.2 in the right eye, 0.05∼0.1 in the left), but the corrected visual acuity was 1.2 in both eyes. Manifested refraction was also variable (−0.50∼-5.50 diopters (D) in the right eye, −4.50∼-6.50D in the left eye). Cycloplegic refraction was −0.50D in the right eye, and −4.50D in the left eye. The patient showed a variable esotropia (4∼16 prism diopters (PD) at distance, 4∼30PD at near). There was no limitation on abduction. There was no abnormality in the brain MRI. Five months after the initial visit, diplopia and blurred vision persisted.

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Keywords: Convergence spasm, Diplopia, Head trauma

References

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Figure 1.

Composite photograph of nine-cardinal gaze at 1 day after head trauma: It shows a right esotropia of 30 prism diopters in primary position and no significant limitation in abduction.

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Figure 2.

(A), (B) T1 and T2 weighted magnetic resonance imaging scans did not show any abnormal signal intensity in the midbrain.

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