AMETROPIAS Meaning and
Definition
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Ametropias are a group of eye disorders characterized by abnormal refractive errors that result in impaired vision. Refractive errors occur when the shape of the eye prevents light from focusing directly onto the retina, leading to blurry or distorted vision. These conditions are typically caused by abnormalities in the length, shape, or curvature of the eyeball, which affect the way light is bent and focused within the eye.
The most common types of ametropias include myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Myopia occurs when the eyeball is too long or the cornea is too curved, causing distant objects to appear blurry. Hyperopia, on the other hand, occurs when the eyeball is too short or the cornea is too flat, resulting in close objects being blurry. Astigmatism is caused by an irregularly shaped cornea that prevents light from focusing evenly on the retina, causing blurry or distorted vision at all distances.
Ametropias can be present at birth or develop later in life. They may be influenced by genetic factors or result from environmental factors such as prolonged near work or inadequate lighting. The treatment of ametropias typically involves the use of corrective lenses, such as eyeglasses or contact lenses, to help focus light properly onto the retina. In some cases, refractive surgery, such as LASIK, may be recommended to permanently correct the refractive error. Regular eye examinations are essential for early detection and management of ametropias in order to maintain optimal vision and prevent further complications.
Common Misspellings for AMETROPIAS
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Etymology of AMETROPIAS
The word "Ametropia" is derived from the Greek roots "a-" (meaning "not" or "without") and "metron" (meaning "measure"). The suffix "-opia" refers to a visual condition or disorder.
Therefore, "Ametropias" is the plural form of "ametropia" and refers to a group of visual conditions where the eye is unable to properly focus light onto the retina, resulting in blurred vision.
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