If the substance that looks like clear jelly-like fluid, which can be called vitreous humor too in our eyes thicken and clump together as we age. This can lead to strands or floaters. When small calcium deposits develop and adhere to the vitreous gel, usually deposits will increase as we age, we get asteroid hyalosis. It looks like galaxy when the yellow or yellow-white particles become suspended in the virteous. But only the doctor can diagnose this. So an annual eye exam is especially important in preventing some eye problems or eye disease from happening.