Development of Corneal Astigmatism (CA) according to Axial Length/Corneal Radius (AL/CR) Ratio in a One-Year Follow-Up of Children in Beijing, China

Table 7

Comparisons of VA and CA in grade 1 and 4 students with AL/CR changes between 2014 and 2015 () (n).

	Grade 1 (aged 5–8 years)		Grade 4 (aged 9–11 years)
	AL/CR increased	AL/CR decreased or unchanged	AL/CR increased	AL/CR decreased or unchanged
UCVA ± s (n)
Year 2014	1.02 ± 0.26 (918)	0.99 ± 0.26 (153)	0.84 ± 0.44 (487)	0.81 ± 0.41 (204)
Year 2015	0.91 ± 0.30 (918)	0.99 ± 0.27 (153)	0.65 ± 0.38 (487)	0.62 ± 0.36 (204)
	0.001	0.977	0.001	0.001
95% CI	−0.13∼−0.09	−0.05∼0.05	−0.21∼−0.15	−0.23∼−0.14
CA ± sD (n)
Year 2014	1.08 ± 0.59 (922)	1.21 ± 0.67 (154)	1.07 ± 0.54 (631)	1.31 ± 0.69 (218)
Year 2015	1.14 ± 0.59 (922)	1.06 ± 0.62 (154)	1.17 ± 0.58 (631)	1.10 ± 0.59 (218)
	0.001	0.027	0.001	0.001
95% CI	0.02∼0.09	−0.27∼−0.02	0.06∼0.15	−0.33∼0.10

s means standard deviation; .