from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An eye abnormality, such as nearsightedness, farsightedness, or astigmatism, resulting from faulty refractive ability of the eye.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several disorders of the eye (spherical or cylindrical) resulting from faulty refractive ability.
from the GNU version of the Collaborative International Dictionary of English
- n. a visual impairment resulting from faulty refraction of light rays in the eye. Subtypes include myopia astigmatism and hyperopia.
from The Century Dictionary and Cyclopedia
- n. A condition of the eye which is abnormal with respect to refraction: the opposite of emmetropia. It comprises myopia, hypermetropia, presbyopia, and astigmatism. See these words.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopia
I have discovered ametropia in the particular form of irregular astigmatism.
They are amblyopic, and this is due partially to a high degree of ametropia (caused by crushing of the eyeball in the endeavor to shut out light) and from retinal exhaustion and nystagmus.
Incorporating patented HyperBond (TM) technology and HydrolEyes (TM) surface science, the SynergEyes (R) contact lenses with FDA market clearance include: SynergEyes (R) A for naturally occurring ametropia, targeting patients with astigmatism, current gas permeable lens wearers, and patients demanding optimized vision; the SynergEyes (R) Multifocal lens for presbyopia;
- severe, usually congenital, mental deficiency. ametropia