Depends on the light: Because the floater is semi-transparent, certain lighting conditions and backgrounds will back the floater more visible. They are always there, just may not be visible under the wrong light.
Answered 12/3/2012
5.4k views
High contrast: If you think of floaters and small particles that cast shadows, a bright background will maximize this.
Answered 12/10/2013
5.2k views
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