According to the National Academy of Sciences (NAS), first-generation immigrants who enter the United States as children (including all DACA recipients) pay, on average, more in taxes over their lifetimes than they receive in benefits, regardless of their education level.
When the spots appear rather fuzzy and seem to be strung together with a web-like thread, they are called floaters. Flashes are bright points of light that literally flash into the field of vision when the eyelids are open or closed. They usually appear as tiny dashes forming either an oval or a circle.
This may present as scintillating lights, an arc of light or a feeling like a light-bulb has just flashed on and off in the periphery of vision. Flashes are caused by improper stimulation of the eye's retina, or the optic nerve, which the brain interprets as light. This could be traction of the retina, for example.