from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the absence of the lens of the eye.
from the GNU version of the Collaborative International Dictionary of English
- n. An anomalous state of refraction caused by the absence of the crystalline lens, as after operations for cataract. The remedy is the use of powerful convex lenses.
from The Century Dictionary and Cyclopedia
- n. etc. See aphacia, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. absence of the natural lens of the eye (usually resulting from the removal of cataracts)
Sorry, no etymologies found.
However people with aphakia (no lens, typically through removal for cataract) can see it, one being Professor Bill Stark of Saint Louis University.
An estimated 20.5 million Americans aged 40 y (17.2% of that population) have cataract, 6.1 million (5.1%) have pseudophakia or aphakia, and it is predicted that those numbers will rise by 50% within 2 decades.
Cataract removal procedure involves the removal of the crystalline lens which creates a condition called aphakia.
Since the 1970s, contact lenses have been the standard way of treating aphakia (surgical lens removal to treat cataract), they said.
These factors among others probably contribute to the poor visual outcome of many children with unilateral aphakia, "wrote the authors.