Note:  Do not rely on this information. It is very old.

Muscse Volitantes

Muscse Volitantes are the specks which appear to float before the eyes, and which are due to small opacities in the refracting media. Unnoticed, as a rule, by those who have normal sight, they prove a source of considerable trouble in some short-sighted persons during periods of ill health. In rare cases their appearance is associated with some of the more serious affections of the interior of the eyeball.