62 of 69 patients (89,9%) had no stenosis of the carotid artery, 8,6% had a stenosis up to 60% and 1 patient (1,5%) had a stenosis of 60-90%. Stage III of VFL was most frequent at the first examination. For statistics Jonckheere-Terpstra test was used.Ģ0.3% of 69 eyes had a preperimetric NTG, stage I had 11,6%, stage II 10,1%, stage III 37,7%, stage IV 18,8%, stage V 1,5%.
For evaluation three patient groups were formed: patients with no hemodynamic relevant stenosis, with stenosis degree up to 60% and with stenosis between 60-90%. All eyes had consistently an intraocular pressure equal or less than 21 mmHg on diurnal testing without medication and during the entire observation time with topical medication. If both eyes had the same stage of VFL, a randomized selection of the eye included was performed. For staging the eye with the more severe VFL was used. Retrospective evaluation of 69 consecutive patients with NTG with VFL stage I-V (Aulhorn classification) or preperimetric NTG at time of diagnosis. Whether there is any association between the degree of stenosis of the carotid artery and the stage of visual field loss (VFL) The frequency and degree of extracranial internal carotid artery stenosis using extracranial carotid artery doppler sonography. To investigate in patients with Normal Tension Glaucoma (NTG): 1.
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