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NR 1-3/2005
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Elektroretinografia
błyskowa całopolowa w chorobach przebiegających ze ślepotą
zmierzchową
Flash full-field
electroretinography in diseases with night blindness
Dorota Pojda-Wilczek, Ewa Herba, Stefan
M. Pojda
Z Katedry i Oddziału Klinicznego Okulistyki Śląskiej Akademii
Medycznej, Szpital Specjalistyczny nr 1 w Bytomiu
Kierownik: prof. dr hab. n. med. Stefan M. Pojda |
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| Summary: |
Purpose: The aim of
this study is to present similarities and differences of
electroretinograms in early stages of retinal diseases
with nyctalopia.
Material and methods: Flash full-field
electroretinography was done according to ISCEV
standards and also with chromatic stimulations in
patients with nyctalopia, who were diagnosed as various
forms of congenital stationary night blindness and
various types of retinitis pigmentosa, choroideremia,
gyrate atrophy and also in patients with nyctalopia,
because of unknown reason. ERG results were compared
with normal values and with each other.
Results: In diseases with nyctalopia the function
of peripheral retina is markedly abnormal and scotopic
ERG is significantly reduced or even absent. In
retinitis pigmentosa a-wave is small or absent
especially scotopic but photopic ERG is also abnormal.
Well preserved a-wave distinguished ERG of patients with
stationary night blindness from the other progressive
diseases of retina or choroid.
Conclusions: In patients with nyctalopia using
ERG is possible to obtain which retinal elements do not
work but it is only start point to following diagostic
examinations, to make proper final diagnosis. |
| Słowa kluczowe: |
elektroretinogram, ślepota
zmierzchowa, zwyrodnienie barwnikowe siatkówki,
choroideremia, wysoka krótkowzroczność. |
| Key words: |
electroretinogram, night
blindness, retinitis pigmentosa, choroideremia, high
myopia. |
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