|
NR. 3/2005
|
|
|
|
|
|
|
|
|
Korelacja obrazu
klinicznego z zaburzeniami parametrów przepływu krwi w tętnicy
środkowej siatkówki u pacjentów z druzami tarczy nerwu
wzrokowego
Correlation between Clinical Features and Disturbances in the
Central Retinal Artery Blood Flow Parameters in Patients with
Optic Disc Drusen
Iwona Obuchowska1,
Andrzej Ustymowicz2, Zofia Mariak1
1Klinika Okulistyki Akademii Medycznej w Białymstoku
Kierownik: dr hab. n. med. Zofia Mariak
2Zakład Radiologii Akademii Medycznej w Białymstoku
Kierownik: prof. dr hab. n. med. Jerzy Walecki |
|
|
|
|
|
|
|
| Summary: |
Purpose: The aim of
our study was to evaluate the correlation between
clinical features and changes in parameters of the blood
flow in ocular vessels in patients with optic disc
drusen.
Materials and methods: 12 patients (7 women and 5
men) with optic disc drusen were enclosed in the study.
Apart from the conventional ophthalmologic examination,
a static perimetry and visual evoked potentials (VEP)
were performed as well as ultrasound examination in A
and B projection and Color Doppler sonography of the
ocular vessels.
Results: Optic disc drusen were bilateral in 9
patients and in 3 others - only in right eye. 10 eyes,
among 21 eyes with drusen, were hypermetropic. In 3
patients there was significant decrease in visual acuity
in one eye. 10 patients (83.3%) had visual field defects
and in 6 of them we found changes in VEP, including
delay in implicit time and reduction in peak-to-peak
amplitude of P100 wave. In 6 patients there was also
decrease in peak systolic blood flow in the central
retinal artery.
Conclusions: There was a correlation between
disturbances in blood flow in the central retinal artery
and the drusen size, refractive error, VEP changes as
well as visual field defects. |
| |
|
| Key words: |
optic disc drusen, Color
Doppler sonography, visual field defects, visual evoked
potentials. |
|
|
|
|
|
|
|
|
