What are mucin balls?
Mucin balls are tiny translucent spheres of mucin formed from the gradual movement of the lens across the tear film. Mucin balls have been documented to occur with many types of lenses, and some patients tend to be more prone to exhibit them. Flatter fits and steeper corneas are believed to show a greater occurrence of mucin ball debris.2 They often leave a temporary imprint in the epithelium, which may pool with fluorescein for a short period of time.
