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NR 7-9/2005
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Wpływ estrogenów na
naczynia krwionośne siatkówki oka
The influence of the
estrogens on a retinal blood vessels
Zofia Mariak1, Grzegorz
Rakowski1, Jarosław Krejza2
1Z Kliniki Okulistyki Akademii Medycznej w
Białymstoku
Kierownik: dr hab. n. med. Zofia Mariak
2Z Zakładu Radiologii Akademii Medycznej w
Białymstoku
Kierownik: prof. dr hab. n. med. Jerzy Walecki |
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| Summary: |
Purpose: To define
the influence of the estrogens on a retinal blood
vessels.
Material and methods: 20 healthy women, mean age
23.5 ± 1.55 with normal laboratory investigations and
with regular fundus and blood vessels appearance,
participated in our study. Fundus examination was
performed with fundus camera Canon NF 505 and with HRT
II. The measurements were made before estrogens
application (300 µg dermal plasters) and 36 hours after
the application in 4th and 6th day of a period.
Results: The difference between the size of the
retinal vessels before and after estrogens application
was significant in all cases. In the main branches the
increase of a vessel's diameter was 4.4% to 11.22% (mean
7.61% ± 3.21%), p<0.05. The increase in a smaller
branches of central retinal artery balanced from 1.2% to
9.2% (mean 5.47
± 4.11%), p<0.05.
Conclusions: Estrogens have a great
vasodilatation effect on a retinal blood vessels. The
level of the dilatation after the estrogens’ application
is about 8% in main branches and about 5% in a smaller
vessels. |
| Słowa kluczowe: |
estrogeny, siatkówka,
śródbłonek naczyniowy. |
| Key words: |
estrogens, retina,
endothelium. |
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