blindness

noun3

1. •
   The condition of being blind; unable to see.

   • DHPG […] is effective in fighting Cytomegalovirus (CMV), a common virus which, for PWAs, can cause CMV retinitis — a condition which can lead to blindness within weeks. — 1989
2. •
   (figurative) Want of intellectual or moral discernment; mental darkness; ignorance, heedlessness.
3. •
   (no longer used) concealment