Assertion: glaucoma | /r/CapableOf | affect optic nerve
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Glaucoma often affects the optic nerve and the retina many years before patients experience any vision loss, so early diagnosis and detection is the most effective way to limit damage to the optic nerve and prevent disease progression.
text: Glaucoma is a disease affecting the optic nerve and can result in permanent, irreversible vision loss.