visual impairment without apparent organic pathology
dimness or blurring of the eyesight due to a fault in transmission of signals to the brain from an otherwise healthy eye.
alt. of Amblyopy
Amblyopia, also known as lazy eye, is an eye disorder characterized by an impaired vision in an eye that otherwise appears normal, or out of proportion to associated structural abnormalities of the eye. It has been estimated to affect 1-5% of the population. In amblyopia, visual stimulation either fails to transmit or is poorly transmitted through the optic nerve to the brain for a continuous period of time. It can also occur when the brain "turns off" the visual processing of one eye to prevent double-vision, for example in strabismus. It often occurs during early childhood, resulting in poor or blurry vision. Amblyopia normally affects only one eye in most patients. However, it is possible, though rare, to be amblyopic in both eyes, if both fail to receive clear visual images. Detecting the condition in early childhood increases the chance of successful treatment, especially if detected before the age of five. The earlier it is detected, and the underlying cause corrected with spectacles and/or surgery, the more successful the treatment in equalizing vision between the two eyes.
Chambers 20th Century Dictionary
am-bli-ō′pi-a, n. dullness of sight (see Amaurosis).—n. Amblyop′sis, the bony fish found in the Mammoth Cave of Kentucky, the rudimentariness of whose eyes is due to darkness and consequent disuse. [Gr.—amblys, dull, ōps, eye.]
U.S. National Library of Medicine
A nonspecific term referring to impaired vision. Major subcategories include stimulus deprivation-induced amblyopia and toxic amblyopia. Stimulus deprivation-induced amblyopia is a developmental disorder of the visual cortex. A discrepancy between visual information received by the visual cortex from each eye results in abnormal cortical development. STRABISMUS and REFRACTIVE ERRORS may cause this condition. Toxic amblyopia is a disorder of the OPTIC NERVE which is associated with ALCOHOLISM, tobacco SMOKING, and other toxins and as an adverse effect of the use of some medications.
The numerical value of amblyopia in Chaldean Numerology is: 1
The numerical value of amblyopia in Pythagorean Numerology is: 4
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