First synthetic retina created for visually impaired
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The study could revolutionise the bionic implant industry and the development of new, less invasive technologies that more closely resemble human body tissues, helping to treat degenerative eye conditions such as retinitis pigmentosa.Just as photography depends on camera pixels reacting to light, vision relies on the retina performing the same function Human eyes are of more than 100 mega pixels camera.

The retina sits at the back of the human eye, and contains protein cells that convert light into electrical signals that travel through the nervous system, triggering a response from the brain, ultimately building a picture of the scene being viewed.The retina replica consists of soft water droplets (hydrogels) and biological cell membrane proteins. Designed like a camera, the cells act as pixels, detecting and reacting to light to create a grey scale image.

           "The synthetic material can generate electrical signals, which stimulate the neurons at the back of our eye just like the original retina," said Restrepo-Schild.The study, published in the journal Scientific Reports, shows that unlike existing artificial retinal implants, the cell-cultures are created from natural, biodegradable materials and do not contain foreign bodies or living entities.