purpose : to evaluate orbital blood flow velocities and optic nerve diameter with doppler and gray-scale sonography in patients with acute unilateral optic neuritis (on) methods : orbital doppler and gray-scale sonography was performed in 46 eyes of 23 patients aged 19-47 with acute unilateral on. on was diagnosed by an ophthalmologist on the basis of clinical presentation, presence of decrease...

ANEURYSMS of the ophthalmic artery are very rare (Lange-Cosack, 1966). The subject has recently been reviewed by Tonnis and Walter (1966). Mortada (1961) reported a fusiform aneurysm of the ophthalmic artery as the cause of exophthalmos which may be added to their list. At the Neurosurgical Clinic, Helsinki, this rare lesion was diagnosed only twice among 1,343 patients with 1,601 intracranial ...

In our series, Intra‐arterial Chemotherapy (IAC) was carried out in all patients by placing the microcatheter close to the origin of the ophthalmic artery where the predominant flow of chemotherapeutic agent was guided into the ophthalmic artery and controlled by intermittent fluoroscopic screening and manual hand injection. The manual injection was pulsatile with the adequate pressure of injec...

BACKGROUND The clipping of multiple intracranial aneurysms in 1 stage is uncommon. In this case, we report clipping of an ophthalmic aneurysm associated with multiple anterior and posterior circulation aneurysms via the Dolenc approach. METHODS The main symptoms of the patient are headache, along with nausea and vomiting. The patient's arteriogram revealed a wide-necked aneurysm of the right ...

PURPOSE To evaluate ocular blood flow velocity indices in untreated primary open-angle glaucoma (POAG) and normal pressure glaucoma (NPG). METHODS Twenty-five untreated patients with NPG, 23 untreated patients with POAG, and 26 age-matched normal control subjects underwent color Doppler imaging for the measurement of blood flow velocity in the central retinal and ophthalmic arteries. Neither ...

The aim of this investigation was the analysis of the variability within the internal and external ophthalmic artery in the chinchilla (Chinchilla laniger, Molina). The head vasculature of 65 individuals was analysed, with particular emphasis on the internal ophthalmic artery originating from the central and rostral part of the cerebral arterial circle. Head blood vessels were filled with acryl...

Ophthalmic artery is the branch of internal carotid artery as it emerges from the cavernous sinus medial to anterior clinoid process. Thereafter it traverses in optic canal to enter in the orbit, lies inferolaterally to the optic nerve. It continues forward over the optic nerve (80%) and below the nerve (20%). Main trunk of the artery ends by dividing in to supratrochlear and dorsal nasal branc...

AIM The study aim was to evaluate the acute hemodynamic effects of intranasal 17-beta-estradiol on ophthalmic arterial circulation in postmenopausal women. METHODS Twenty-one healthy women in natural menopause for at least 6 months (mean age: 53.2± 2.9 years) were investigated. Each patient received 300 µg intranasal 17-beta-estradiol. We evaluated the heart rate, systolic and diastolic blood...

AIM A relationship was shown in this study between the optic canal and the ophthalmic artery by cadaver study. It is intended that the anatomical and histological values which we obtained can be used as a guide in surgery MATERIAL and METHODS: A surgical anatomical evaluation was made of twenty optic canals in ten cadavers fixed in 10% formaldehyde. These were evaluated together with measuremen...

BACKGROUND AND PURPOSE Distal to a hemodynamically significant stenosis, the Doppler effect becomes dampened. Thus, measuring the flow profile in the ophthalmic artery and the central retinal artery with color Doppler imaging may provide hemodynamic information about the carotid circulation. METHODS To validate the flow profile measurement with color Doppler imaging in the ophthalmic and cent...