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Imaging the whole eye with a single device

Spanish and Polish scientists have used a lens controlled by an electric current and OCT technology to capture images of the eye in unprecedented detail

19 Jan 2018 by Selina Powell

Researchers have developed a new ocular coherence tomography (OCT) system that can capture detailed images of the entire eye with a single instrument.

The optical properties of the lens in the OCT device can be altered using an electric current, allowing clinicians to image the front and back of the eye as well as the interfaces of the eye’s vitreous gel with the retina and lens.

The OCT system uses a laser that rapidly and continuously changes wavelength, improving the resolution and speed of device.

Nicolaus Copernicus University assistant professor, Ireneusz Grulkowski, explained that the electrically tunable lens was incorporated into a custom-made system that “represents the latest generation of OCT technology.”

“We set out to show that we could image both the front and back of the eye without changing instruments. However, we were also able to show that our instrument enhanced the image quality of the OCT images,” Dr Grulkowski elaborated.

A laboratory version of the technology has been used to measure the anatomical characteristics of the eyes of seven healthy patients.

Results were comparable to those obtained through an ocular biometer.

Further work will need to be undertaken on the instrument before it is ready to be used clinically.

Image credit: Ireneusz Grulkowski/Nicolaus Copernicus University

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