Fig. 4
From: Additive effects of narrowband light and optical defocus on chick eye growth and refraction
Effect of opposing dual-power lenses on eye growth in chicks under white light conditions. At 13 days of exposure, eyes with lens wear had shorter (a) VCD and (b) AL than the contralateral control eyes. c, d Refraction in lens-wearing eyes were more hyperopic than the control eyes. Data represents mean ± SEM (n = 8 per condition). *Statistically significant at P less than 0.05 (one-way repeated-measures ANOVA with Tukey HSD) when compared with control eyes. VCD, vitreous chamber depth; AL, axial length; SER, spherical equivalent refraction; SEM, standard error of mean