What you have to prove
Show one of: (1) the widest diameter subtending an angle around the point of fixation no greater than 20 degrees, OR (2) a mean deviation of -22 or worse, OR (3) a visual field efficiency of 20 percent or less.
Medical evidence SSA expects
Visual field testing (Humphrey perimetry or Goldmann), repeated on separate occasions to confirm stability, with official perimetry reports.
Common misconceptions
Self-reported tunnel vision isn't enough — formal visual field testing with specific numeric results is required. Test reliability indices must be acceptable.
Didn't meet the listing? You can still qualify via a Medical-Vocational
Allowance — SSA's determination that your residual functional capacity, combined with
your age, education, and work history, leaves no jobs you can do. See our
appeals guide for what to do after an initial denial.