preferred_name: Retinal nerve fiber loss (severe, in all quadrants seen on optical coherence tomography)
preferred_name_lc: retinal nerve fiber loss (severe, in all quadrants seen on optical coherence tomography)
label: Retinal nerve fiber loss (severe, in all quadrants seen on optical coherence tomography)
label_lc: retinal nerve fiber loss (severe, in all quadrants seen on optical coherence tomography)