There are
several ocular lesions that are important and treatable as causes of
headache, including conjunctivitis, corneal lesions, anterior uveitis,
angle closure glaucoma, optic neuritis, metastatic orbital tumors,
orbital pseudotumors and the Tolosa-Hunt syndrome. The symptoms of
paratrigeminal syndrome, ocular motor nerve paralysis, small vessel
disease, carotid cavernous fistulas, and nasopharyngeal carcinomas may
all have eye pain as a presenting symptom.Dissection of the internal
carotid artery can also present with eye pain (see below). Photophobia
is often seen with subarachnoid hemorrhage, meningitis, retrobulbar
neuritis and migraine and probably has its basis in central cortical and
brainstem reflexes.
However it is
important to note that the eye is rarely responsible for headache if
ophthalmic signs are not obvious. Refractive disorders and muscle
imbalance are overemphasized as the cause of headache and that
correction of these problems seldom provides resolution. Ocular neurosis
is the usual cause of eye strain headache that begins abruptly with use
of the eyes in which there is a normal ophthalmologic exam.
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