astigmatic
1
8.0
- adjective
- /əˈstɪɡmətɪk/
- Specialized
:
astigmático
- He realized his astigmatic condition made it difficult to read street signs while driving.
- astigmatic mirror
Examples
-
The doctor explained that her astigmatic vision caused her to see blurry images when looking at distant objects.
-
To generate a focus error signal, an astigmatic lens is used to focus onto a quadrant detector a portion of the light reflected from the disk.
Academic text (1996) -
"Astigmatic, no doubt."
Fiction book (1991) -
Yet this astigmatic view has afflicted every administration, causing great miscalculation and plain errors, and providing Moscow with greater opportunities than any other source.
Academic text (1990) -
However, if the lens is not in focus, the focal spot on the detector is elliptical because of the optical properties of the astigmatic lens.
Academic text (1996) -
I was told ahead of time that I could probably achieve near-normal vision in both eyes, but only with further procedures, possibly laser surgery in the more astigmatic eye and a limbal relaxing incision (LRI) in the other.
Academic text (2007) -
After the eye exam, I learned that the astigmatic lens would help correct my blurred vision.
Antonyms
How Distorted
Surface Forms
Morphology
astigmatic = astigmatism (opaque) = a + stigmat + ism + ic
Forming an adjective from the noun 'astigmatism' using the productive suffix '-ic' is a regular and predictable derivation.
Etymology
Astigmatic comes from Greek parts a- meaning 'not' and stigma meaning 'point' or 'mark'. So something astigmatic does not bring light to a single 'point', which is why an astigmatic eye or lens makes images look blurred or stretched.