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[摘要]
目的：探讨测量梯度性AC/A比值对青少年近视防治的意义。
方法：选取60例青少年近视患者(30例早发性近视、10例迟发性近视和20例正视)，测量他们的刺激性调节诱发的AC/A比值。
结果：在早发性近视和迟发性近视与正视眼的反应性AC/A之间存在着显著性差异(P<0.05)，早发性与迟发性近视组比较存在着显著性差异(t=2.84，P<0.01)； 早发性近视与正视组比较存在着显著性差异(t=2.71，P<0.01)。
结论：早发性近视较迟发性近视和正视具有较高的反应性AC/A比值，提示高AC/A可能是近视发生发展的一个危险因素。
[Key word]
[Abstract]
AIM: To discuss the meaning of measuring gradient AC/A ratio in preventing and correcting adolescent myopia.
METHODS: Sixty subjects(30 early-onsetmyopes, 10 late-onset myopes and 10 emmetropes)participated in this study. The stimulant accommodative gradient AC/A ratio were measured.
RESULTS: There was a significant difference in the response AC/A between early-onsetmyopes, late-onset myopes and emmetropes(t=2.84, P<0.01 and t=2.71, P<0.01,respectively).
CONCLUSION: Early-onset myopia has a higher response AC/A than late-onset myopia andemmetropia, which suggest that higher AC/A may be the risk factors for myopia onset and progression.
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