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NR 4-6/2005
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Zmiany osiowych
wymiarów gałki ocznej w trakcie rozwoju osobniczego w
miarowości, krótkowzroczności i nadwzroczności
Changes of axial dimensions
of the eye during growth in emmetropia, myopia and hyperopia
Bartłomiej J. Kałużny, Aleksandra
Koszewska-Kołodziejczak
Z Kliniki Okulistycznej Akademii Medycznej w Bydgoszczy
Kierownik: prof. dr hab. n. med. Józef Kałużny |
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| Summary: |
Purpose: The aim of
this study was to evaluate changes of axial dimensions
of the eye during growth in emmetropia, myopia and
hyperopia.
Material and methods: We examined 183 children
(363 eyes) aged 4 to 19 with emmetropia, myopia and
hyperopia. All measurements were performed after
cycloplegia with 1% tropicamidum (Polfa Warszawa). Total
and corneal refraction was examined with
autokeratorefractometer (Nikon NRK-8000). Then we used
ultrasound biometer Ocuscan (Alcon, USA), to measure
axial length of the eye, axial length of the vitreous
cavity, axial dimension of the lens and axial depth of
the anterior chamber.
Results and conclusions:
1. Growth of the axial length of the emmetropic eyes is
finished at the age of 12, in hyperopic eyes in the age
of 11 and in myopic eyes growth is proportional until
the age of 14 and then significantly accelerates.
2. Growth of the axial length is mainly caused by
increasing axial length of vitreous cavity. A little
role in human eye growth is also played by increasing
depth of the anterior chamber.
3. Between 4 and 19 years old, mean cycloplegic axial
dimension of the lens is slightly decreasing in
emmetropic and hyperopic eyes, whereas in myopic eyes is
constant. |
| Słowa kluczowe: |
rozwój gałki ocznej,
długość osiowa gałki ocznej, długość osiowa komory
szklistej, głębokość komory przedniej, grubość osiowa
soczewki, wady wzroku. |
| Key words: |
eye growth, axial length
of the eye, axial length of the vitreous, axial
dimension of the lens, depth of the anterior chamber,
refractive errors. |
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