astigmatism
| 1. |
(noun) (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point |
|
Synonyms: astigmia |
|
Related Words: condition, status |
|
Antonyms: stigmatism |
|
| 2. |
(noun) (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea |
|
Synonyms: astigmia |
|
Related Words: ametropia |
|
|