Noun
An
eye
disease
or
disorder
that
is
defined
as
a
characteristic
optic
neuropathy
,
or
disease
of
the
optic nerve
,
possibly
,
if
untreated
,
leading
to
damage
of
the
optic disc
of
the
eye
and
resultant
visual
field
loss
due
to
lack
of
communication
between
the
retina
and
the
brain
,
which
can
lead
to
blindness
.