It may be small in size, but the retina is one of the most miraculous parts of the human body. Just 0.5 mm thick, the retina contains over six million cones, incredibly efficient photoreceptors that sense color, fine detail and rapid movement, as well as 120 million rods enabling nighttime and peripheral vision. The retina is responsible for translating a focused image into a series of electrical impulses transmitted via the optic nerve to the brain to create one of the most important senses in human life: vision.
However, what happens when the retina degenerates or is damaged? For millions of people, contracting retinal degenerative diseases such as macular degeneration or retinitis pigmentosa often means severe loss of sight – blurred or tunnel vision that eventually leads to blindness. Pioneering work by Nano Retina now offers hope. The Israeli nanotechnology company developed a retinal implant in a size of less than 5 millimeters, which is inserted inside the eye through a low-risk surgical procedure and works with a set of eyeglasses worn by the patient.