Visual
field testing is a critical
part of the neuro-ophthalmic
exam and is mandatory for
the complete evaluation of
unexplained visual loss. The
absence of any visual field
defect in conjunction with
the lack of a relative
afferent pupillary defect is
strong evidence against an
optic neuropathy in a
patient complaining of
blurry vision.
The type and location of the
visual field defect also is
important for selecting the
appropriate evaluation,
including neuroimaging.
