What Causes Sudden Blurry Vision? Experiencing A sudden blurriness in your sight can be alarming, particularly when it occurs unexpectedly. What Causes Sudden Blurry Vision? Reasons can vary from minor issues like dry eye syndrome or an outdated spectacle prescription to critical conditions involving the retina, optic nerve, or brain. https://sites.google.com/view/drruchika25/blog/what-causes-sudden-blurry-vision