A new less expensive and portable optical coherence tomography (OCT) retinal scanner has been developed by the researchers from Duke University. They tested the device on 60 patients with and without retinal diseases and found out that the image quality of their device is about 95% in comparison to other expensive devices, that makes it enough for diagnostic purpose.
The developed system is economical because of an optical redesign and the use of 3D-printed components whereas the current devices available are very expensive and every eye center cannot afford them.
The device works like an ultrasound, except instead of sound waves it uses light waves and measures a change in the phase of those waves. It mainly compares light waves travelled into the eye with a reference wave that has not traveled through the eye.
This new low-cost OCT device was successful in the clinical study to obtain an imagine quality that was 94.4% that of high performance, expensive systems. The images captured with the device were clinically useful and used to make accurate diagnoses.
Mr Vinod Arora, Principal Advisor, IGMPI
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