SUBNORMAL VISION Meaning and
Definition
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Subnormal vision is a condition characterized by a reduced ability to see clearly or perceive visual details. It describes a visual impairment that falls short of the standard or average visual acuity. Individuals with subnormal vision typically have a visual acuity between 20/70 and 20/200, which means that they need to be closer to an object than a person with normal vision in order to see it clearly. This condition can impact both distance and near vision.
Subnormal vision can be caused by various factors, such as eye diseases, hereditary conditions, trauma, or congenital anomalies. Common eye conditions associated with subnormal vision include myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and cataracts. In some cases, subnormal vision can also result from age-related degenerative changes in the eye, such as age-related macular degeneration.
The impact of subnormal vision on an individual's daily life can vary depending on the severity of the impairment. It may affect activities such as reading, writing, driving, recognizing faces, or performing tasks that require fine visual discrimination. People with subnormal vision often rely on corrective lenses, visual aids, or assistive technology to enhance their visual acuity and improve their overall visual function.
Overall, subnormal vision refers to a visual impairment that deviates from the normal or expected visual acuity, making it difficult for those affected to perceive visual information with clarity and precision.
Common Misspellings for SUBNORMAL VISION
- aubnormal vision
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- s8bnormal vision
- s7bnormal vision
- suvnormal vision
- sunnormal vision
- suhnormal vision
- sugnormal vision
- subbormal vision
- submormal vision
- subjormal vision
- subhormal vision
Etymology of SUBNORMAL VISION
The word "subnormal" comes from the Latin prefix "sub-" meaning "under" or "below", and the word "normal" which derives from the Latin word "normalis" meaning "made according to the square, according to a set pattern, or regular". Thus, "subnormal" can be understood as something that is below or beneath the normal standard.
The term "subnormal vision" is a medical term referring to the condition where an individual has visual acuity or visual performance that falls below the normal range. The etymology of "vision" can be traced back to the Latin word "visio" meaning "sight" or "act of seeing". The combination of "subnormal" and "vision" indicates impaired or below-average visual ability.
