What does 20 25 vision mean Meaning and Definition

Pronunciation

/twɛnti tuʊ tuʊ faɪv vɪʒən miːn/ 🔊

Part of Speech

Noun

Definition

A measure of visual acuity, where 20/25 vision means that an individual can see objects clearly at a distance of 20 feet that a person with normal vision can see at a distance of 25 feet. This indicates that the person’s vision is slightly impaired, but not significantly so.

Examples

• The eye chart revealed that the patient had 20/25 vision in her left eye.
• After correcting his vision with glasses, he achieved 20/25 vision in both eyes.

Synonyms

• Near-normal vision
• Mild visual impairment

Antonyms

• 20/20 vision
• Legally blind

Additional Information

20/25 vision is a measure of visual acuity that is slightly below normal vision. While it may not significantly impact daily activities, it can still affect tasks that require fine detail or sharp vision, such as reading or driving at night. In some cases, corrective lenses or other treatments may be necessary to improve vision.

It’s essential to note that 20/25 vision can be caused by various factors, including refractive errors, eye diseases, or injuries. Regular eye exams can help detect any vision problems and provide appropriate treatment.

In addition, 20/25 vision can have implications for certain professions or activities that require excellent vision, such as piloting or surgery. In these cases, individuals with 20/25 vision may need to undergo additional testing or evaluation to determine their suitability for the role.

Etymology

The term “20/25 vision” originated from the Snellen chart, a widely used eye chart developed by Hermann Snellen in the 19th century. The chart features lines of letters with decreasing sizes, and the 20/25 line represents the distance at which a person with normal vision can read the letters.

Usage Notes

When referring to 20/25 vision, it’s essential to specify the context in which it is being used. For example, in medical or scientific contexts, the term may be used to describe a specific level of visual acuity. In everyday conversation, it may be used to describe someone’s vision as being slightly impaired.

Cultural References

20/25 vision has been referenced in popular culture, often as a way to describe someone’s slight visual impairment. For example, in the movie “The Big Lebowski,” the main character’s 20/25 vision is a running joke throughout the film.

Idiomatic Expressions or Phrases

None

Related Words or Phrases

• 20/20 vision
• Visual acuity
• Refractive error

Collocations

• 20/25 vision in one eye
• 20/25 vision with corrective lenses

Frequency of Use

20/25 vision is a relatively common term in medical and scientific contexts, but its usage is less frequent in everyday conversation.

Common Misspellings

• 20/25 vison
• 20/25 vision mean