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Transient Choroidal Thickening Associated with Hyponatremia
Journal of Retina 2018;3(2):92-96
Published online November 30, 2018
© 2018 The Korean Retina Society.

Hae Min Kang

Department of Ophthalmology, Catholic Kwandong University International St. Mary’s Hospital, Incheon, Korea
Correspondence to: Hae Min Kang, MD, PhD
Department of Ophthalmology, Catholic Kwandong University International St. Mary’s Hospital, #25 Simgok-ro 100beon-gil, Seo-gu, Inchoen 22711, Korea
Tel: 82-32-290-3888, Fax: 82-32-290-3879
E-mail: liebe05@naver.com
Received March 17, 2018; Revised June 6, 2018; Accepted June 14, 2018.
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: This study reports two cases of transient choroidal thickening accompanied by hyponatremia.
Case summary: (Case 1) A 51-year-old patient experienced hyponatremia associated with inappropriate vasopressin secretion complained of blurry vision of both eyes. The refractive error based on the spherical equivalent was +2.00 diopters in both eyes. The mean subfoveal choroidal thickness (SFCT) by spectral domain optical coherence tomography was 262.5 μm in the right eye and 250.5 μm in the left eye. The serum sodium level was 117 mEq/L. After correcting the hyponatremia, the serum sodium level was 138 mEq/L, and the hyperopic shift of refractive errors resolved to emmetropia. The mean SFCT was reduced to 244.5 μm in the right eye and 229.5 μm in the left eye. (Case 2) A 39-year-old patient with hyperosmolar hyperglycemic state complained of decreased vision in both eyes. The refractive error of each eye was -4.25 diopters in the right eye and -3.75 diopters in the left eye. The mean SFCT was 267.0 μm in the right eye, and 252.0 μm in the left eye. The serum sodium level was 124 mEq/L. After glycemic control, the refractive error was changed to -1.50 diopters in the right eye and -1.25 diopters in the left eye. The serum sodium level was 141 mEq/L, and the mean SFCT was reduced to 240.0 μm in the right eye and 233.0 μm in the left eye.
Conclusions: Both isotonic and hypertonic hyponatremia can lead to transient choroidal thickening.
Keywords : Choroid; Choroidal thickness; Hyponatremia


November 2018, 3 (2)
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