If everything suddenly goes grey or lots of floaters appear, act fast. You could have a retinal detachment. To treat it, doctors need to replace the gel-like fluid that fills the eye. The challenge is to find the best material for the job. Researchers at the University of Tokyo have developed a new, quick-setting hydrogel that rapidly solidifies after two pre-gel solutions are mixed. The pre-gels contain clusters of branched polymer molecules. which bind together when combined. When injected into the eyes of rabbits, the gel solidified within ten minutes and successfully treated retinal detachment in the animals. While existing gels turn cloudy over time, the new gel remained clear This discovery could pave the way for new eye surgery techniques in humans. Now that’s what we call setting your eye on the prize!