Engineering

A brain implant system may become path to sight for blind

A woman who was blind for 16 years was able to see with a brain implant rather than artificial eye, and that has sparked a number of new reports about the latest progress made in exploring the sight restoring potential of ...

Machine learning & AI

New deep learning model can accurately identify sleep stages

A new deep learning model developed by researchers at the University of Eastern Finland can identify sleep stages as accurately as an experienced physician. This opens up new avenues for the diagnostics and treatment of sleep ...

Other

Tracking the eye of the pilot

In a collaboration with Swiss International Air Lines, NASA and other partners, researchers at ETH Zurich have developed eye-tracking software for use in pilot training. This allows instructors to analyze the gaze behavior ...

Engineering

Magnetic skin ensures the force is with you

Who has not unleashed their inner Jedi to use "the force" to open automatic doors at the shopping mall? A novel magnetic skin has been developed at KAUST that can remotely control switches and keyboards with the wave of a ...

Computer Sciences

Using deep learning to localize human eyes in images

A team of researchers at China University of Geosciences and Wuhan WXYZ Technologies in China has recently proposed a new machine learning-based technique to locate people's eyes in images of their faces. This technique, ...

Engineering

A biocompatible magnetic skin that could enable new wearable systems

Researchers at King Abdullah University of Science and Technology have recently developed a flexible and imperceptible magnetic skin that adds permanent magnetic properties to all surfaces to which it is applied. This artificial ...

Engineering

Contact lens: You blink and you zoom in

Researchers are in the news this week because of their soft biomimetic lens. Blink twice and you get yourself a closer look at things. Activated soft elastomer works to increase focal length.

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Eye

Eyes are organs that detect light, and send signals along the optic nerve to the visual and other areas of the brain[citation needed]. Complex optical systems with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in cnidaria, molluscs, chordates, annelids and arthropods.

The simplest "eyes", such as those in unicellular organisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment.

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