Dual-illumination mode, wide-field probe imaging scheme for imaging irido-corneal angle region inside eye

Shinoj V. K.; Murukeshan V. M.; Jesmond Hong; M. Baskaran; Tin Aung

doi:10.1117/12.2189509

17 July 2015 Dual-illumination mode, wide-field probe imaging scheme for imaging irido-corneal angle region inside eye

Shinoj V. K., Murukeshan V. M., Jesmond Hong, M. Baskaran, Tin Aung

Proceedings Volume 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015); 95241L (2015) https://doi.org/10.1117/12.2189509
Event: International Conference on Optical and Photonic Engineering (icOPEN2015), 2015, Singapore, Singapore

Abstract

Noninvasive medical imaging techniques have generated great interest and high potential in the research and development of ocular imaging and follow up procedures. It is well known that angle closure glaucoma is one of the major ocular diseases/ conditions that causes blindness. The identification and treatment of this disease are related primarily to angle assessment techniques. In this paper, we illustrate a probe-based imaging approach to obtain the images of the angle region in eye. The proposed probe consists of a micro CCD camera and LED/NIR laser light sources and they are configured at the distal end to enable imaging of iridocorneal region inside eye. With this proposed dualmodal probe, imaging is performed in light (white visible LED ON) and dark (NIR laser light source alone) conditions and the angle region is noticeable in both cases. The imaging using NIR sources have major significance in anterior chamber imaging since it evades pupil constriction due to the bright light and thereby the artificial altering of anterior chamber angle. The proposed methodology and developed scheme are expected to find potential application in glaucoma disease detection and diagnosis.

Citation Download Citation

Shinoj V. K., Murukeshan V. M., Jesmond Hong, M. Baskaran, and Tin Aung "Dual-illumination mode, wide-field probe imaging scheme for imaging irido-corneal angle region inside eye", Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 95241L (17 July 2015); https://doi.org/10.1117/12.2189509

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KEYWORDS

Eye

Near infrared

Light emitting diodes

Light sources

Cameras

CCD cameras

Light

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