astigmatic
/,æstig'mætik/
Definition
- Adjective:
- Relating to astigmatism: Describes a condition of the eye or a lens where light rays do not converge to a single focal point, causing blurred or distorted vision.
- Having astigmatism: Describes a person who suffers from this visual defect.
Usage and Examples
- Describing a condition:
- An astigmatic eye cannot focus light properly on the retina.
- The astigmatic lens produced a distorted image of the grid.
- Describing a person:
- She is astigmatic and needs special corrective lenses.
- The astigmatic patient reported improved vision with cylindrical lenses.
Advanced Usage
- Figurative Use: Can describe a perspective or analysis that is distorted or fails to see things clearly.
- His astigmatic view of history ignored crucial social factors. (This usage is less common and more literary.)
Variants and Related Words
- Astigmatism (n): The medical or optical condition itself.
- He was diagnosed with astigmatism.
- Astigmatically (adv): In an astigmatic manner.
- The light was focused astigmatically.
Synonyms
- Distorted (in a general sense, not specifically medical).
- Blurred (regarding vision or image quality).
Antonyms
- Stigmatic: Relating to or having normal, single-point focus (a technical term, the direct opposite in optics).
- Emmetropic: Having normal vision where light focuses correctly on the retina.
Adjective
-
of or relating to a defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images
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