Conventional colonoscopy is performed with a long, flexible tube called a colonoscope that is equipped with a tiny fiber-optic video camera and light at the end.

VOA: standard.2010.04.07

Then, on the following day, the doctors were asked to perform a series of simulated operations via a virtual reality program used to train doctors in laparoscopic surgery, a form of minimally invasive surgery performed with tiny incisions and a fiber-optic camera.

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The camera sends images to the electrodes, essentially bypassing the damaged retina and tapping into the optic nerve that signals the brain to "see" images.

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