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astigmatism::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | astigmia |
| Type of | ametropia |
| Has types | keratoconus, keratectasia |
| Derivation | astigmatic |
Examples of astigmatism
astigmatism
If not treated, it could result in an increased level of myopia and astigmatism.
From the forbes.com
They do not correct all eye errors and they certainly don't correct astigmatism.
From the abcnews.go.com
Suddenly, nearsightedness and a slight astigmatism never seemed more attractive.
From the time.com
With care, an optical system can be designed to reduce or eliminate astigmatism.
From the en.wikipedia.org
In this case, astigmatism is observed even for rays from on-axis object points.
From the en.wikipedia.org
Aberrations, such as astigmatism or distortion, plague high-resolution imaging.
From the engineeringatil.scienceblog.com
Is there a freshman walk-on quarterback with astigmatism waiting in the wings?
From the post-gazette.com
Then scientists could link those measurements with the development of astigmatism.
From the foxnews.com
The first time didn't count because the official scorer must have astigmatism.
From the thenewstribune.com
- (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
- (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
- (astigmatic) 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
- An optical system 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. ...
- Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image on the retina. This may be due to an irregular or toric curvature of the cornea or lens. ...
- 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; 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
- Distorted vision typically caused by an irregular shaped cornea. When the cornea is not perfectly spherical in shape, two different points of focus may be formed in the same eye, creating distorted and blurred vision. ...
- Structural defects of the eye in which the light rays from a viewed object do not meet in a single focal point, resulting in blurred images being sent to the brain. An astigmatic cornea is not perfectly rounded like a basketball but has an irregular shape more like the side of a football. ...
- Astigmatism is one of a group of eye conditions known as refractive errors. Refractive errors cause a disturbance in the way that light rays are focused within the eye. Astigmatism often occurs with nearsightedness and farsightedness, conditions also resulting from refractive errors. ...
