Although both Greenland and Vinland in North America were settled by Viking explorers and traders, neither was destined to be a permanent Norse population center. Greenland experienced climate change over the next few centuries, and all the farms and settlements were abandoned by the turn of the 16th century.
Eye floaters can appear as black or gray dots, lines, cobwebs, or blobs. Occasionally, a large floater may cast a shadow over your vision and cause a large, dark spot in your sight. Because the floaters are inside the fluid of your eye, they will move as your eyes move.
Eye floaters are suspended in this âjellyâ, so they move when your eyeball moves. If you try to look directly at them, the floaters may seem to disappear. Floaters can come in different sizes and shapes. Some floaters look like small dots, while others appear like threads or little hairy clumps.