Carotid-ophthalmic aneurysms.

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Abstract
Thirty-two cases of carotid-ophthalmic aneurysms are reviewed. As with intracranial aneurysms in other positions they present mainly with subarachnoid haemorrhage but, in spite of their close proximity to the optic nerve, visual involvement is infrequent. They are more common in women, more frequent on the left side, and more prone to multiplicity. In cases of multiple aneurysms a carotid-ophthalmic aneurysm is usually an incidental finding. Detailed angiographic studies employing various projections are required before treatment can be planned. Yet angiography does not always disclose some of the technical difficulties that may be encountered during surgery. Different methods of treating these aneurysms are discussed and suggestions for safe direct surgery made.