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KMID : 1191420110100010056
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Korean Journal of Optometry and Vision Science
2011 Volume.10 No. 1 p.56 ~ p.62
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A Case of Pituitary Tumor with Unilateral Visual Disturbance and Atypical Visual Field Defect
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Cho Yang-Kyeung
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Abstract
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Purpose: We report a rare case of pituitary tumor showing decreased visual acuity and atypical visual field defect in one eye.
Methods: A 65-year-old patient presented with decreasing visual acuity in right eye. There were mild cataratous change of lens in both eyes and no abnormal findings of retina and optic nerve in fundus examination except mild epiretinal membrane in left eye. And there showed an atypical constricted visual field and abnormal wave in visual evoked potential in right eye. Orbit CT was done to observe optic nerve lesion but there was no abnormality in optic nerve. But we found an abnormal enhancement in pituitary gland. Pituitary tumor was confirmed in brain MRI and the patient was undergone neurosurgical excision of tumor.
Results: Pituitary tumor shows variable clinical signs and visual field defect. But signs confined to unilateral eye is rare and visual field defect such as our case is atypical. So ophthalmologists need more attention in diagnosis of patients with atypical visual field defect.
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KEYWORD
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Atypical visual field defect, Monocular visual disturbance, Pituitary tumor
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