Definition Presence of IOL implant after crystalline lens has been removed; may be inserted primarily or secondarily. There are numerous types of IOLs including: anterior or posterior chamber; rigid or foldable; 1- or 3-piece; loop or plate haptic; round or square edge; polymethylmethacrylate, ...
The estimates were based on a standardizeddefinition of various types of cataract: cortical,greater than 25% of the lens involved; posterior subcapsular, present according to the grading system used in each study; and nuclear, greater than or equal to the penultimate gradein the system used. ...