Definitions for astigmatism
Overview of noun astigmatism
The noun astigmatism has 2 senses? (no senses from tagged texts)
1. astigmatism, astigmia
((ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people)
2. astigmatism, astigmia
((optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point)
