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KMID : 1151620180030020092
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Journal of Retina
2018 Volume.3 No. 2 p.92 ~ p.96
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Transient Choroidal Thickening Associated with Hyponatremia
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Kang Hae-Min
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Abstract
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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.
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KEYWORD
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Choroid, Choroidal thickness, Hyponatremia
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