Patients left blind through devastating brain injuries are a
Patients left blind after traumatic brain injuries can have their vision fully restored through common surgery, scientists claim.
Even if the operation doesn't occur until several months after the accident, it results in 20/20 vision for most people.
The procedure, called a vitrectomy, works by removing the vitreous gel that sits between the eye's lens and retina, and replacing it with saline solution.

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