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NR. 4(I)/2008
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Obrazowanie
przedniego odcinka oka za pomoc± spektralnej optycznej
koherentnej tomografii – przypadek kliniczny
Anterior Segment Imaging with Fourier-Domain Optical Coherence
Tomography System – Case Report
Edward Wylęgała1,2,
Anna Nowińska1
1 Oddział Okulistyki Okręgowego Szpitala Kolejowego w
Katowicach
Ordynator: prof. dr hab. n. med. Edward Wylęgała
2 Zakład Pielęgniarstwa i Społecznych Problemów
Medycznych ¦l±skiej Akademii Medycznej w Katowicach
Kierownik: prof. dr hab. n. med. Edward Wylęgała |
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| Summary: |
Purpose: To analyze
anterior segment morphology and measurements obtained
from two anterior segment optical coherence tomography
systems.
Design: Case report
Material and Methods: 55-year old patient with
lattice corneal dystrophy was examined. The patient
underwent deep anterior keratoplasty in the left eye 18
months earlier. Slit lamp examination was performed.
Corneal thickness, anterior segment morphology and angle
measurements were assessed and compared with two systems:
Visante OCT (Carl Zeiss Meditec, Inc, Dublin, California,
USA) and RTVue FD-OCT Corneal Anterior Module system (Optovue,
Inc. Fremont, CA, USA).
Results: There was a significant difference
between two systems in hyperreflective corneal changes
visualization in OCT image of the right eye. FD-OCT
image was more accurate and precise. Images of the left
eye from both systems showed proper graft attachment. In
both eyes, during FD-OCT we had to use different
protocols to access angle morphology and measurements
while one Visante AS-OCT scan provided information about
the whole anterior chamber parameters. Anterior segment
measurements were comparable for both systems.
Conclusions: Visante OCT system has lower
resolution, but in one anterior chamber image, all the
anterior chamber structures are visible, while RTVue
provides very precise information about small fragments
of anterior chamber. |
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| Key words: |
optical coherence
tomography, anterior chamber, lattice corneal dystrophy. |
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