Open Access Journal of Ophthalmology (OAJO)

ISSN: 2578-465X

Research Article

Methods and Tools for Selecting Spectrum in Fundus Illumination

Authors: Georgiy S, Yuri S*, Victor S, Maria L and Alexander N

Abstract

Aim: To develop a methodology of creating high-resolution images for vitroretinal surgery without increasing the intensity of light. Methods: A method of replacing a powerful light source whose spectrum is close to the solar one by a set of narrow-band sources with much smaller total energy, their bands are selected according to optical characteristic of informative areas of fundus. A selective spectrum emitter is designed. A method of spectrum optimization is proposed for video registration. The efficiency of the approach was verified by numerical simulation. Results: The experiments on real data the frames of video recording of the operating field using: a) using the Xenon Bright Star, b) a spectrally selective emitter, c) LED emitter have demonstrated the advantage of the proposed methodology. It improves the quality of images, and the intensity of light is even smaller. The analysis of real operations gives a material for selecting a trade-of between the quality and the light load on the eye. Conclusion: The intensity of light is not enhanced and hence, the method doesn’t damage the eye. An additional advantage of the proposed method is an increase in the robustness of video registration with respect to reducing the illumination.

Keywords: Ophthalmology; Vitroretinal Surgery; Spectrum Selection; Selective Emitters; Video Registration

View PDF

F1 europub scilit.net