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'.
Read more about this topic: Intraocular Lens
Famous quotes containing the words definition of and/or definition:
“The very definition of the real becomes: that of which it is possible to give an equivalent reproduction.... The real is not only what can be reproduced, but that which is always already reproduced. The hyperreal.”
—Jean Baudrillard (b. 1929)
“Scientific method is the way to truth, but it affords, even in
principle, no unique definition of truth. Any so-called pragmatic
definition of truth is doomed to failure equally.”
—Willard Van Orman Quine (b. 1908)