Your eyes are turning to liquid as you read this―it's an inexorable fact of life. As people age, the transparent gel called the vitreous humour that fills the eye gradually breaks down into a liquid. And a detached retina can sometimes follow as a result. As the vitreous humour liquefies, the remaining gel may pull away from the retina, ripping small holes in it. If the liquefied material then seeps through the holes, it can lift the retina from the back of the eyeball. Detached retinas cause blurred vision, and if left untreated can lead to blindness.
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