Assertion: glaucoma's sign | /r/HasProperty | the loss of peripheral vision
Facets:
value: often
type: TEMPORAL
value: generally
type: DEGREE
Source sentences:
text: The first sign is generally the loss of peripheral vision.
text: When many people have glaucoma, they don’t notice any symptoms but the first sign is often a loss of peripheral vision (side vision).
text: The most common early sign of glaucoma is the loss of peripheral vision, and can possibly go unnoticed until late in the disease.