. 2010 Jan;51(1):594–601. doi: 10.1167/iovs.09-3599

Table 5.

Comparison of Prevalence of WTR in the Current and Previous Studies

Study	Age	WTR			Astigmatism Criteria
Study	Age	Albinism	Idiopathic	Normal¹³	Astigmatism Criteria
Results in this paper	Age≤0.5 y	0.379	0.174	0.167	J₀ ≥0.375 D or
	0.5<Age≤1 y	0.500	0.263	0.048	Cylinder ≥0.75 D
	1<Age≤4 y	0.636	0.400	0.059
	4<Age≤8 y	0.857	0.583	NA
Nathan et al.⁴	7–13 y	0.786	0.573	NA	Cylinder ≥1 D
Jethani et al.¹²	≤4 y	0.427		NA	Cylinder ≥0.75 D
	>4 y	0.488
Sampath and Bedell⁵	Adults	0.890	0.717	NA	Cylinder ≥0.25 D
Wildsoet et al.⁶	Adults	1	NA	NA	Cylinder ≥1 D