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Use of the new MultiColour SPECTRALIS® software for identifying retinal nerve fibre layer defects
E Fuentemilla1, M P Bambo1, B Cameo1
1Servicio de Oftalmología, Hospital Universitario Miguel Servet, Zaragoza, España; Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Grupo de Investigación Miguel Servet Oftalmología (GIMSO), Universidad de Zaragoza, Zaragoza, España.
Abstract:
The classical fibre photography traditionally used to identify defects in the retinal nerve fibre layer (RNFL), has been partially discontinued due to poor availability. The new MultiColour module of SPECTRALIS® Optical Coherence Tomography (OCT), using three different laser wavelengths simultaneously, can provide images that identify the structures of the retina in different colours according to their depth. A small concordance study was conducted to determine the usefulness of the new MultiColour software versus traditional fibre photography in identifying RNFL defects. The inter-observer agreement in the interpretation of MultiColour images was good (κ=.746; P<.001), as by using Multicolour they were able to identify around 70% of patients with mild glaucoma. It is believed that the new Multicolour software is useful in evaluating RNFL defects, and is easy to perform.
