This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
An orbital varix is an abnormally enlarged, thin walled vein that is in direct communication with the normal orbital vessels. Orbital varices can be primary (most likely present from birth and confined to the orbit) or secondary (acquired due to increased blood flow in association with additional venous malformations elsewhere in the body). Symptoms such as intermittent double vision (diplopia) or bulging eyes (proptosis), pain and/or orbital bleeding (hemorrhage) may be brought on by stooping, bending, coughing or straining. Small lesions are managed through observation. Larger lesions may require surgery.
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