Assertion: diabetic retinopathy's stage | /r/HasProperty | grade
Facets:
value: based on severity
type: CAUSE
Source sentences:
text: As the condition progresses, flame-shaped haemorrhages, cotton-wool exudates, oedema and changes at arteriovenous crossings (Gunn's crossing sign) appear (grade 3) and at the most advanced stage (grade 4) the arteriolar reflex becomes 'silver-wire' and papilloedema occurs.
text: The beginning stages are known as Non-Proliferative Diabetic Retinopathy(NPDR) and is graded based on severity; mild, moderate, and severe.
text: As the condition progresses, flame-shaped haemorrhages, cotton-wool exudates, oedema and changes at arteriovenous crossings (Gunn's crossing sign) appear (grade 3) and at the most advanced stage (grade 4) the arteriolar reflex becomes 'silver-wire' and papilloedema occurs.