A Chinese research team has developed a nanometre thick fibre that, when exposed to light, can send nerve-like signals to an artificial eye that can then respond to varying light levels—this could eventually lead to an artificial eye that can perform like a natural eye.
This article by Jason Murugesu, writing for New Scientist, makes the following points:
- The recent creation of a bionic eye that mimics the widening and shrinking of the pupil may bring us a step closer to helping visually-impaired people.
- Light enters the eye via the pupil before travelling to the retina.
- It then converts the light stimuli into nerve impulses sent to the brain (via the optic nerve) for processing.
- An artificial eye might help people who have double vision, light sensitivity, or difficulty focusing on nearby objects due to eye injuries,
- The designer is now hoping to develop an artificial eye that perceives colour.
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