A visual acuity measurement of 20/200 signifies that an individual can see an object from 20 feet away that a person with standard vision can see from 200 feet. For example, if viewing an eye chart, someone with this level of vision would need to stand 20 feet away to clearly identify letters that a person with normal vision could discern from 200 feet. This level of reduced sight is often considered legally blind when corrective lenses cannot improve vision.
Understanding visual impairment levels is essential for determining appropriate support and resources for affected individuals. Historically, the measurement has served as a benchmark for eligibility for various government assistance programs and disability services. Furthermore, an awareness of the practical implications of reduced sharpness of vision can influence environmental adaptations and assistive technology design, enhancing the quality of life for those affected.
