status,
condition the relative position or standing of things or especially persons in a society; "he had the status of a minor"; "the novel attained the status of a classic"; "atheists do not enjoy a favorable position in American life"
optics optical properties; "the optics of a telescope"
= synonym
= antonym
= relatert ord
Wiktionary
Substantiv
astigmatism -
A defect of a lens such that light rays coming from a point do not meet at a focal point so that the image is blurred.
astigmatism -
A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.
Wikipedia
with astigmatism is one where rays that propagate in two perpendicular planes have different foci. If an optical system with astigmatism is used to form an image of a cross, the vertical and horizontal lines will be in sharp focus at two different distances. The term comes from the Greek α- (a-) meaning "without" and στίγμα (stigma), "a mark, spot, puncture".
OmegaWiki Dictionary
Ω
astigmatism A distortion of the image on the retina caused by irregularities in the cornea or lens.
