[Visual evoked potentials and ultrasonography in ischemic optic neuropathy].
OBJECTIVE
To emphasize the importance of the examination VEP and Doppler ultrasonography for ION diagnostic establishment and their monitoring.


METHODS
There have been taken into VEP examination 43 patients, simple stimuli (flash) having used. For Doppler ultrasonography there have been taken into examination 38 patients whose extracerebral carotidian arterial system and ophthalmic artery have been examined.


RESULTS
The VEP examination at the beginning of NOI have emphasized a depress of the amplitude of the VEP with normal VEP latency in 65.1% of cases and a depress of the amplitude with prolonged latency time in 4.7% of cases. VEP examination after 7-14 days from the ION beginning have emphasized only the depress of the amplitude in 48.8% of cases. Doppler ultrasonography examination have emphasized diffuse atherosclerotic lesions in 81.6% of cases and local carotidian stenosis in 7.9% of cases.


CONCLUSIONS
VEP and Doppler ultrasonography examinations complete in an efficient way the range of clinical examinations and permit the getting of useful results in ION diagnosis. The examinations are complementary allowing the estimation of the nervous conductibility degree of deterioration and of the vascular pathway of the illness. VEP and Doppler ultrasonography are easy reproducible and non-aggressive methods which bring important diagnosis elements and allow ION monitoring.
Varga
M
M
Spitalul Judeţean Braşov-Secţia Oftalmologie.
D003196:Computer Graphics; D005074:Evoked Potentials, Visual; D006801:Humans; D018917:Optic Neuropathy, Ischemic / Q000175:diagnosis*; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler / Q000379:methods*