Accommodative response to peripheral stimuli in myopes and emmetropes

摘要: PURPOSE: It has been suggested that peripheral refractive error may influence eye growth and the development of axial error, implying retina is sensitive to defocus. This study aimed evaluate steady-state accommodative response stimuli in 10 young, adult myopes (mean spherical equivalent -2.10 � 1.72 D, median -1.63 range -0.83 -6.00 D) emmetropes -0.02 0.35 +0.08 -0.50 +0.50 D). METHODS: The subjects were asked view monocularly centre a screen displaying each series eccentric targets placed at 5, 15�. An target was viewed for comparison purposes. Accommodation measured using an open-field autorefractor, stimulus being varied between about 0 4 D with trial lenses front viewing eye. RESULTS: results confirm optical focus, up field angles least 15�, responses weakening as angle increases. There some evidence accommodation be less effective than emmetropes. CONCLUSIONS: Although can demonstrated absence central stimulus, normally dominated by it seems unlikely effects play important role development.