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首页> 外文OA文献 >Short-term and long-term changes in corneal power are not correlated with axial elongation of the eye induced by orthokeratology in children
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Short-term and long-term changes in corneal power are not correlated with axial elongation of the eye induced by orthokeratology in children

机译：角膜屈光力的短期和长期变化与角膜塑形术引起的儿童眼轴伸长无关

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摘要

PURPOSE: To assess the relationship between short-term and long-term changes in power at different corneal locations relative to the change in central corneal power and the 2-year change in axial elongation relative to baseline in children fitted with orthokeratology contact lenses (OK). METHODS: Thirty-one white European subjects 6 to 12 years of age and with myopia −0.75 to −4.00 DS and astigmatism ≤1.00 DC were fitted with OK. Differences in refractive power 3 and 24 months post-OK in comparison with baseline and relative to the change in central corneal power were determined from corneal topography data in eight different corneal regions (i.e., N[nasal]1, N2, T[temporal]1, T2, I[inferior]1, I2, S[superior]1, S2), and correlated with OK-induced axial length changes at two years relative to baseline. RESULTS: After 2 years of OK lens wear, axial length increased by 0.48±0.18 mm (P0.05). CONCLUSION: The reduction in central corneal power and relative increase in paracentral and pericentral power induced by OK over 2 years were not significantly correlated with concurrent changes in axial length of white European children.
机译：目的：评估角膜接触镜患儿角膜中央位置的变化相对于中央角膜屈光度的短期和长期变化与相对于基线的轴向伸长2年变化之间的关系（确定）。方法：31名6至12岁的欧洲白人受试者，且近视度数为-0.75至-4.00 DS，且散光度≤1.00 DC。根据八个不同角膜区域（即N [nasal] 1，N2，T [temporal]）的角膜地形图数据，确定了OK后3和24个月屈光力与基线相比以及相对于中央角膜屈光力变化的差异如图1所示，T 2，I 1，I 2，S 1，S 2，并且与OK诱导的相对于基线的轴向长度变化在两年内相关。结果：OK镜片佩戴2年后，轴长增加了0.48±0.18 mm（P0.05）。结论：OK对2年以上OK诱发的中央角膜屈光力降低和中央旁及周围中央力的相对增加与欧洲白人儿童并发轴向长度变化无显着相关性。

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