Is everyone who develops TRO affected in the same way?
wide variation
- mild irritation and lid retraction that resolve totally
- severe orbital infiltration with visual loss
More severe disease
- older patients (average age of 52 vs. 36 for milder disease)
- less of a gender difference (female-to-male ratio of 1.5:1 in severe disease vs. 8.6:1 in mild disease)