ଅର୍ଥ : (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea. Common in nearsighted people.
ସମକକ୍ଷ : astigmatism
ଅର୍ଥ : (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point.
ସମକକ୍ଷ : astigmatism
(optics) condition of an optical system (as a lens) in which light rays from a single point converge in a single focal point.
stigmatism