What causes spots and “fireworks” in an eye?
The spots and floaters, as we generally refer to them, may be associated with migraines. But they are usually caused by a shrinkage of the jelly that fills the back two-thirds of the eye. As this jelly (vitreous) shrinks two things occur. As light goes through the shrunken jelly, a shadow is formed on the back of the eye. This is what is commonly perceived as a floater. Secondly, as the jelly shrinks, it can pull or tug on the retina causing flashing lights. A thorough evaluation by your family optometrist including a dilated examination is suggested. This examination rules out any serious conditions that also can cause spots and floaters.
