Often these worm-like structures (that can also appear like cobwebs, spots, or threads) can be seen moving across our field of vision appear when looking at a bright or plain background like a clear blue sky, or a white wall.
From blood or other cells to bits of protein or tissue, the shapes in our eyes could be down to a number of different things floating about in vitreous humour.
This layer is a clear jelly-like substance located between the lens and the retina and helps to maintain the eye’s round shape.
When the light hits the back of our eye (the retina) it cast shadows, and as a result, that’s how we see the floaters in our vision.
Most researchers and practitioners consider the condition to be benign, according to the BBC.
So next time you're looking at a clear sky and see a floater in your eye, you'll know the cause of it.
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