Intraocular Lens - Definition of Phakic, Aphakic and Pseudophakic IOLs

Definition of Phakic, Aphakic and Pseudophakic IOLs

  • Phakia is the presence of the natural crystalline lens.
  • Aphakia is the absence of the natural crystalline lens, either from natural causes or because it has been removed.
  • Pseudophakia is the substitution of the natural crystalline lens with a synthetic lens. Pseudophakic IOLs are used in cataract surgery.

The root of these words comes from the Greek word phakos 'lens'.

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