When i have my eye closed usually praying i see a black spot float down in my left side of side , i also sometimes see it with my eyes open but comes and goes a few times a day only the left side of left eye. i wear contacts also what is this?

Probably just some clumping of the protein within the vitreous creating a floater. If the symptoms dramatically increase in number or become associated with flashing lights (photopsia) or changes in peripheral or central vision, it should be evaluated by an ophthalmologist immediately.

What you are describing is consistent with changes in the vitreous (the transparent gel comprising 2/3 of the eye). Over time, the vitreous may degenerate and produce an isolated “floater”. However, these “spots” can also be pigment, blood, or inflammatory cells and should never be dismissed as harmless. A dilated ophthalmology exam is always indicated to determine the origin of a floater.