What is the typical eyesight value of someone who is considered legally blind?

The typical eyesight value for someone who is considered legally blind is 20/200. This means that at 20 feet, a person with this level of vision sees what someone with normal vision (20/20) can see at 200 feet. This designation is used to identify significant visual impairment that severely affects a person's ability to perform daily activities without assistance. In many jurisdictions, a person is considered legally blind if their best-corrected visual acuity is 20/200 or worse, or if their visual field is significantly restricted.

Understanding this standard is crucial for recognizing the importance of vision in activities that require depth perception, clarity at a distance, and overall awareness of the environment, particularly in populations that may include older adults who are more prone to vision impairments.