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Impressum
Teletransmitted stereoscopic images of the optic nerve head in glaucoma
Bergua A., Horn F.
Department of Ophthalmology, University of Erlangen-Nuremberg, Erlangen, Germany
Purpose: To establish an inexpensive system to analyse internet
transmitted stereoscopic images of the optic nerve head (ONH) for collaborative
research or remote glaucoma diagnosis.
Method: We used a computer assisted system based on a personal
computer (Intel Pentium III, 550 MHz, 32 MB graphic board), wireless stereo
shutter glasses (liquid crystal technique, Revelator, Elsa) and 19"
monitor (Eizo, refreshrate: 120 Hz). Stereoscopic obtained images were
digitized using a SprintScan 35 Plus Film Scanner (Polaroid, MA), stored
in JPEG file format and edited using the software 3D PIX (Nuvision, OR).
Results: Flicker free stereoscopic visualization of the ONH can
be achieved with the above described system. Neuroretinal rim, excavation
depth, and size of the ONH can be judged much better as in conventional
two dimensional images.
Conclusions: The presented system provides high quality and low
cost transmission of stereoscopic images of ONH from glaucoma patients
via inter- or intranet. The possibility to extend the system to other
research institutes engaged in teletransmission and in the judgement of
visual 3D information is discussed.