Legal blindness

legal blindness

Legal blindness is a defined level of vision loss used by governments and organizations to determine who qualifies for specific supports and services; it is not the same as total blindness. In many places the standard is a best-corrected visual acuity of 20/200 or worse in the better-seeing eye, or a visual field of 20 degrees or less, meaning a severely restricted field of view. This definition provides a clear, consistent way to decide eligibility for things like disability benefits, specialized medical care, and certain protections under the law. People who are legally blind often still have some usable sight; they may read large print or use remaining peripheral vision with the help of assistive devices. Being classified as legally blind can affect driving privileges, access to mobility training, and eligibility for adaptive technology and vocational services. An eye doctor measures vision and fields and documents results for official certification or benefit applications. The designation matters because it unlocks practical supports—such as financial aid, transportation assistance, and rehabilitation services—that help people maintain independence. If someone suspects they meet the criteria, getting a formal eye exam and documentation is the first step toward obtaining the help they need.