20/40 vision

**20/40 Vision**

The term “20/40 vision” refers to a specific measurement of visual acuity, indicating that what a person with normal vision can see clearly at 40 feet, someone with 20/40 vision can only see clearly at 20 feet. This level of vision is slightly below the standard “20/20” benchmark for normal eyesight but is still considered functional for many daily activities. In many places, 20/40 vision is the minimum required for obtaining a driver’s license without corrective lenses. This tag can be used for content related to eye health, vision testing, corrective lenses, and understanding visual acuity standards.