Cibaster and Offaster differ primarily by possessing a marginal fasciole and a better developed anterior sulcus. Crassiholaster has a much thicker test, smaller, more anterior peristome opening into a ...

Intraocular lens malpositions include decentration, subluxation, dislocation, and, in the case of toric IOLs, off-axis rotation. An IOL, whether placed in the bag, the sulcus, or the anterior ...