Table 2.

Values on interobserver repeatability coefficient, coefficient of variance, within subject standard of deviation, and intraclass correlation of Plusoptix A09 spherical power, cylindrical power and axis

	95% CI
	RC	CV	Sw	ICC
Spherical power	1.26 (1.12-1.40)	40.54 (35.96-45.11)	0.45 (0.40-0.51)	0.92 (0.89-0.94)
Cylindrical power	0.5 (0.45-0.56)	-21.76 (−19.31-24.21)	0.18 (0.16-0.20)	0.99 (0.98-0.99)
Cylindrical axis	96.44 (85.52-107.35)	45.57 (40.42-50.73)	34.79 (30.85-38.73)	0.70 (0.59-0.78)

RC: Repeatability coefficient, CI: Confidence interval, CV: Coefficient of variance, Sw: Within subject standard deviation, ICC: Intraclass correlation coefficient