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All Words Glossary
noun
- (uncountable) The quality of being adapted; adaption; adjustment.
- (uncountable) Adjustment to extant conditions: as, adjustment of a sense organ to the intensity or quality of stimulation; modification of some thing or its parts that makes it more fit for existence under the conditions of its current environment
- (countable)Something which has been adapted; variation.
noun
- dimness or blurring of the eyesight due to a fault in transmission of signals to the brain
noun
- A faint whitish ring around the iris in elderly people; discoloration of the iris with age.
noun
- An ophthalmological condition that manifests itself through nonspecific symptoms such as fatigue, red eyes, eye strain, pain in or around the eyes, blurred vision, headache and occasional double vision.
adjective
- suffering from astigmatism
noun
- (optics) 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.
- (pathology) 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.
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