[Ocular subclinical changes in significant XXXX ].

@entity1 @entity227 @entity1939 @entity50533 @entity989 @entity543
58 @entity1 (40 @entity1 , 18 @entity1 ) affected by high-grade @entity543 were examined using automated perimetry and electroretinography. @entity1 ' ages ranged from 53 to 83 years with a mean of 67 years. We examined 29 @entity1 with unilateral and 29 @entity1 with bilateral symptomatic stenosis of carotid arteries and cerebrovascular alterations, without ocular changes. @entity227 were found by 41 @entity1 (70.6%), by 51.3% @entity1 there were mild or middle defects, by 48.7% hard defects. The results using electroretinography showed significant amplitude decrease and prolonged latencies of the oscillatory potentials on ipsilateral side in unilateral cases. Significant decrease of amplitudes @entity50533 in @entity1 after the attack of @entity1939 fugax has been observed too. The critical value of this amplitude was estimated to 37 muV. High-grade stenosis of carotid arteries are accompanied by @entity227 and @entity989 at the time when objective finding on the fundus is normal. The cause of these disorders might be decreased arterial perfusion or microembolization. The perimetry and ERG findings didn't correlate, nevertheless both tests can be useful for detection of early retinal alterations and represent a help-method to determine indications for carotid endarterectomy.
