value of ultrasonography and fluorescein fundus angiography in the differential diagnosis of optic nerve head oedema

ABSTRACT

Fifty six eyes with optic nerve head oedema were studied. Since all cases had clear media, fluorescein fundus angiography and coloured fundus pictures were taken; ultrasonography as well as performed. Cases included pleuro-cephalic oedema, acute anterior ischemic optic neuropathy, acute hypotony due to trauma or uveitis, acute papilHtis and giant drusen. Ultrasonography could only confirm the clinical differential diagnosis in cases with giant drusen while could not differentiate between other cases which gave same pictures. On the other hand, fluorescein fundus angiography differentiated only acute anterior ischaemic optic neuropathy from other lesions