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Reversible hyperglycemic homonymous hemianopia.

John P Mitchell¹, Asha Yancy, Leslie Saint Louis

¹Department of Ophthalmology, New York-Presbyterian Hospital, New York, New York 10030, USA. mitchellmdj@verizon.net

Journal of the National Medical Association

|April 29, 2009

Summary

This summary is machine-generated.

Nonketotic hyperglycemia can cause homonymous hemianopia, a visual field defect. Prompt treatment of hyperglycemia reversed this visual loss, highlighting diabetes mellitus as a crucial consideration for sudden-onset hemianopia.

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Area of Science:

Neuro-ophthalmology
Endocrinology
Neuroradiology

Background:

Diabetes mellitus is a common endocrine disorder with various systemic complications.
Visual field defects can be indicative of underlying neurological or metabolic conditions.

Observation:

A 67-year-old female with diabetes presented with homonymous hemianopia.
Magnetic resonance imaging (MRI) revealed diffuse bilateral white matter changes.

Findings:

The patient's homonymous hemianopic visual field loss resolved after correction of hyperglycemia.
White matter changes on MRI persisted for 15 years despite visual recovery.

Implications:

Sudden onset of homonymous hemianopia warrants consideration of diabetes mellitus and nonketotic hyperglycemia.
This case underscores the reversible nature of certain visual field defects associated with metabolic derangements.
Neuroimaging findings may persist even after clinical and metabolic recovery.