highly significantP < 0.001
For amblyopic eyes in monocular viewing, the additional effect of amblyopic eye VA (0.14 D decrease in accommodative response per line of acuity loss, P < 0.001) was highly significant, as was the interaction between VA and accommodative stimulus (0.09 D of additional lag per diopter of stimulus, per line of acuity loss, P < 0.001), indicating that the increasing error with increasing demand was greater in the amblyopic eyes with poorer acuity (as shown in Fig. 2 ).