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NR 3/2004
SUPLEMENT
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Zastosowanie
półautomatycznej perymetrii kinetycznej (PPK) do oceny ubytków w
polu widzenia spowodowanych przez zwyrodnienie barwnikowe
siatkówki
Applicability of
semi-automated kinetic perimetry (SKP) in the assessment of the
visual field loss due to retinitis pigmentosa
Katarzyna Nowomiejska1,2, Jens
Paetzold2, Elke Krapp2, Robert Rejdak1,
Tomasz Żarnowski1, Zbigniew Zagórski1,
Ulrich Schiefer2
1Z Katedry Okulistyki im. Tadeusza Krwawicza i I
Kliniki Okulistyki Akademii Medycznej w Lublinie
Kierownik: prof. dr hab. n. med. Zbigniew Zagórski
2Z Kliniki Okulistyki Uniwersytetu w Tybindze,
Oddział Neurookulistyki, Tybinga, Niemcy
Kierownik: prof. dr hab. Eberhart Zrenner |
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| Summary: |
Purpose: To assess
the applicability of a new technique of kinetic visual
field examination – semi-automated kinetic perimetry (SKP)
– in patients suffering from the visual field defects
due to retinitis pigmentosa.
Methods: Thirty-five patients (19 women, 16 men:
mean age 38,4 years) suffering from retinitis pigmentosa
(10 with with Usher syndrome, one with Bardet-Biedl
syndrome and one with Refsum syndrome) were examined
using SKP software, implemented in Octopus 101
instrument (Haag-Streit, Koeniz, Switzerland). Three
stimuli (III4e and I4e obligatory) were used to assess
the hill of vision of each patient. The area of each
isopter was measured in deg2. The test time was measured
automatically in minutes.
Results: The visual field results were classified
as complete or incomplete midperipheral „ring scotoma” (group
I – 13 patients) and concentric loss of the visual field
(group II – 22 patients). The area of III4e isopter was
6147,5 deg2 in the group I and 1961,7 deg2 in the group
II. The area of I4e isopter was 1468,4 deg2 and 781,7
deg2, respectively. The mean test time was 10 min. (range
4-20 min.): 8 min. in the group I and 13 min. in the
group II.
Conclusions: There is a large diversity of
patterns of the visual field loss in retinitis
pigmentosa. SKP, in contrary to widely used manual
perimeter, gives a possibility of quantification of the
visual field area. Future studies may be able to monitor
the progression of the visual field loss caused by
retinitis pigmentosa |
| Słowa kluczowe: |
retinitis pigmentosa,
półautomatyczna perymetria kinetyczna, ubytki w polu
widzenia |
| Key words: |
retinitis pigmentosa,
semi-automated kinetic perimetry, visual field loss |
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