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Anterior ischemic optic neuropathy in Graves' disease
A Dosso1, A B Safran, G Sunaric
1Department of Ophthalmology, Geneva University Hospital, Switzerland.
Summary
Graves' disease can cause optic neuropathy, potentially exacerbated by ocular muscle stretching exercises. Ischemia may play a role alongside muscle compression in optic nerve damage.
Area of Science:
- Ophthalmology
- Endocrinology
Background:
- Graves' disease is an autoimmune disorder affecting the thyroid and potentially the eyes.
- Ocular manifestations include restrictive myopathy and optic nerve involvement.
Observation:
- Two patients with Graves' disease presented with optic neuropathy and limited eye movement.
- Clinical signs included flame-shaped hemorrhages, disc swelling, and visual field defects.
Findings:
- The observed optic neuropathy pattern suggested an anterior and ischemic nature.
- One patient developed symptoms after ocular muscle stretching exercises, possibly due to elevated intraocular pressure.
Implications:
- Ischemia should be considered as a contributing factor to optic nerve damage in Graves' disease.
- Ocular muscle stretching exercises may precipitate ischemic events in susceptible individuals.