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Brain MRI. MRI of pre- (a) and post-operative pituitary tumor (b) . 

Brain MRI. MRI of pre- (a) and post-operative pituitary tumor (b) . 

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Figure 1 Brain MRI. MRI of pre- (a) and post-operative pituitary tumor...
Table 1 Changing of the factors related to the refractive change
Figure 2: Patient findings. The time course of serum electrolyte...
A case with transient refractive change after removal of pituitary tumor
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  • Nov 2013
Refractive change can be caused by systemic illnesses such as Lupus erythematosus, thyroid deficiency, and diabetes mellitus. However, refractive change after pituitary tumor removal has so far not been reported. A 62-year-old woman presented with blurred near vision 10 days after trans-sphenoidal surgery (TSS) for a pituitary tumor. Around the sam...
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Context 1
... resonance imaging (MRI) showed an extended intrasellar tumor, which measured 25-mm in its greatest diameter and did not attach to the optic chiasm. The lesion infiltrated the right cavernous sinus, and extended to the pharynx (Figure 1a). Ini- tially, the tumor was considered to be a nonfunctional pituitary adenoma. ...
Context 2
... patient consented to TSS, and TSS was per- formed without incident (Figure 1b). Seven days after TSS, the patient presented with associated hyponatre- mia ( Figure 2). ...

Citations

... Hyponatremia is the most common electrolyte disorder and is defined as a serum sodium concentration (Na+) less than 135 mEq/L [1]. Hyponatremia can affect the sodium volume in the entire body, and a previously reported case showed that hyponatremia, after removal of the pituitary tumor, lead to transient refractive change [2]. The authors speculated that hyponatremia caused an osmotic change in the aqueous humor with lens swelling [2]. ...
... Hyponatremia can affect the sodium volume in the entire body, and a previously reported case showed that hyponatremia, after removal of the pituitary tumor, lead to transient refractive change [2]. The authors speculated that hyponatremia caused an osmotic change in the aqueous humor with lens swelling [2]. ...
... Although it seems for both of these cases that hyponatremia was associated with transient choroidal thickening, the refractive error changes were different with each other. A transient hyperopic shift occurred in case 1, whereas a transient myopic shift occurred in case 2. Previous studies on transient refractive changes have reported results that vary from myopic shift to hyperopic shift [2,[4][5][6][7][8][9]. Even hyperglycemia and glycemic control can induce changes in refractive errors [6][7][8][9]. ...
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