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NR 4-6/2006
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Zależność zakresu
fuzji od wybranych funkcji układu wzrokowego. Część I: badania
fuzji konwergencyjnej i dywergencyjnej
The dependence of the range
of fusion on some selected functions of the visual system. Part
I: study on convergent and divergent fusion
Bogdan Adamek1, Danuta
Karczewicz2
1 Z Indywidualnej Specjalistycznej Praktyki
Lekarskiej w Szczecinie
Kierownik: dr n. med. Bogdan Adamek
2 Z Katedry Okulistyki z Kliniką i Zakładem
Patofizjologii Narządu Wzroku w Szczecinie
Kierownik: prof. dr hab. n. med. Danuta Karczewicz |
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| Summary: |
After examined 132
patients, the authors selected 90 patients with correct
visual acuity of both eyes, correct range of eyeballs’
mobility, parallel setting of the eyeballs, no
difference in refraction between both eyes and with
muscular balance. These 90 patients were divided into 3
groups: children between 8 and 10 years old, teenagers
between 11 and 20 years old and adult people between 21
and 40. All the groups were subject to the main
examination of the study carried out by means of prism
bar and synoptophore for each of the eye separately. The
results were compared in order to define the difference
in the range of fusion between both eyes. The study
involved an examination of horizontal range of
convergent and divergent synoptophoric fusion as well as
that of free space for near and for far. A statistically
significant difference between both eyes was observed in
range of synoptophoric, for near and for far convergent
fusion. The difference was confirmed in an average of
35.6% of patients for convergent fusion for near, in
34.4% of patients for convergent fusion for far, and in
65.6% of patients for synoptophoric convergent fusion.
The mean difference between the eyes in the range of
fusion was: 4.6° for convergent fusion for near, 3.9°
for convergent fusion for far and 6.4° for synoptophoric
convergent fusion. No significant differences between
both eyeballs were detected in the range of divergent
fusion.
The authors suggested calling the phenomenon connected
with the difference between both eyeballs in convergent
fusion the following term: “visual unevenness of the
range of convergent fusion”. |
| Słowa kluczowe: |
zakres fuzji, fuzja
pryzmatyczna, fuzja synoptoforowa. |
| Key words: |
fusion range, prismatic
fusion, synoptophoric fusion. |
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