DEFECTIVE VISION Meaning and
Definition
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Defective vision refers to a condition in which an individual experiences abnormalities or problems in their ability to see clearly. It is a medical term used to describe a range of visual impairments or disorders that affect the eyes and the brain's interpretation of visual information.
Defective vision can manifest in various forms such as nearsightedness (myopia), farsightedness (hyperopia), astigmatism, presbyopia, color blindness, or low vision. Nearsightedness refers to the difficulty in seeing objects clearly at a distance, while farsightedness affects the ability to focus on close-up objects. Astigmatism is characterized by distorted or blurry vision at any distance. Presbyopia is an age-related condition where the ability to see close-up objects diminishes. Color blindness refers to the inability to perceive certain colors accurately, while low vision encompasses a range of visual impairments that cannot be fully corrected by glasses, contact lenses, or surgery.
The causes of defective vision can be diverse, including genetic factors, eye injuries or trauma, hormone changes, aging, certain medications, or underlying medical conditions such as diabetes and high blood pressure. It can significantly impact an individual's quality of life, making it challenging to read, drive, or recognize faces. However, defective vision can often be corrected or managed through the use of corrective lenses (glasses or contact lenses), surgical interventions, or vision therapy.
Regular eye examinations by an optometrist or ophthalmologist are essential in identifying and managing defective vision, allowing individuals to receive appropriate treatment and optimize their visual capabilities.
Common Misspellings for DEFECTIVE VISION
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Etymology of DEFECTIVE VISION
The word "defective" originated from the Latin word "defectivus", which means "lacking" or "imperfect". It comes from the verb "deficere", which means "to fail" or "to be lacking".
The word "vision" has Latin roots as well, coming from the Latin noun "visio", meaning "sight" or "sense of sight".
Therefore, when combined, "defective vision" means the condition or state of having imperfect or impaired sight.
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