Understanding a Common Yet Surprising Part of Getting Older As we age, our bodies go through countless changes—some expected, some less so. One of the lesser-known but very common changes happens deep inside the eye, in a jelly-like substance called the vitreous gel. If you’ve ever noticed sudden flashes of light in your vision, especially as you’ve gotten older, this may be why. Let’s explore how aging affects the vitreous and why these visual flashes occur—plus when they mi