What visual acuity would be recorded for someone who sees an object at 20 feet that a person with no refractive error can see at 60 feet?

What visual acuity would be recorded for someone who sees an object at 20 feet that a person with no refractive error can see at 60 feet?

• A. 20/40
• B. 20/60
• C. 20/80
• D. 20/100

Answer: (B)

The concept of visual acuity is denoted in terms of a ratio, such as 20/60. This measurement compares the distance at which a person can see an object clearly to the distance at which a person with normal vision can see the same object clearly. In this scenario, the individual can see an object clearly at 20 feet that a person with normal vision (who has no refractive error) can see at 60 feet. Therefore, the visual acuity for this individual would be expressed as 20/60. The "20" indicates that the person can see the object at 20 feet while the "60" indicates the distance at which a person with normal vision can see it clearly. This means that the individual has a reduced visual capability compared to normal sight, hence the 20/60 ratio. Understanding this ratio is critical for assessing vision quality and can indicate a need for corrective lenses or other forms of vision support.

The concept of visual acuity is denoted in terms of a ratio, such as 20/60. This measurement compares the distance at which a person can see an object clearly to the distance at which a person with normal vision can see the same object clearly.

In this scenario, the individual can see an object clearly at 20 feet that a person with normal vision (who has no refractive error) can see at 60 feet. Therefore, the visual acuity for this individual would be expressed as 20/60. The "20" indicates that the person can see the object at 20 feet while the "60" indicates the distance at which a person with normal vision can see it clearly. This means that the individual has a reduced visual capability compared to normal sight, hence the 20/60 ratio.

Understanding this ratio is critical for assessing vision quality and can indicate a need for corrective lenses or other forms of vision support.