夜间角膜塑形术产生的正的相对调节增加

中国实用眼科杂志 Pub Date : 2017-06-10 DOI:10.3760/CMA.J.ISSN.1006-4443.2017.06.015

Yanchun Xu, F. Gu, Fu-sheng Zhang, Huan-yun Yu, Chun-lei Liu

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引用次数: 0

摘要

目的观察青少年近视患者配戴角膜塑形镜后适应能力的变化，探讨角膜塑形镜控制近视进展的机制。方法选取青少年近视110例，远视43例，配戴角膜塑形镜48例。用光镜测量远、近视距、正相对调节和负相对调节(PRA/NRA)，并与配戴框架眼镜的患者进行比较。比较19例患者佩戴角膜塑形镜前后的PRA和NRA。结果角膜塑形镜配戴组3个月后PRA(-4.32±1.59)D显著高于框架镜配戴组(-2.27±1.19)D。两组间PRA差异有统计学意义(P<0.05)。两组NRA差异无统计学意义。佩戴角膜塑形镜后PRA(-4.22±1.67)D高于佩戴角膜塑形镜前PRA(-2.49±1.05)D，差异有统计学意义(P <0.05)。结论佩戴角膜塑形镜后PRA增加，调节能力增强，可能是角膜塑形镜控制近视进展的合理机制。关键词:近视;角膜矫正术;正相对调节

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Positive relative accommodation increase produced in response to overnight orthokeratology

Objective To observe the changes of accommodation with myopia adolescents after wearing orthokeratology, and to investigate the mechanism of orthokeratology controlling myopia progression. Methods A total of 110 adolescents with myopia, 43 adolescents were emmetropia, 48 patients wore orthokeratology. Phoria at distance and near, positive relative accommodation and negative relative accommodation (PRA/NRA) were measured with phoropter, and compared with the patients wearing frame glasses. The PRA and NRA before and after wearing orthokeratology in 19 patients were compared. Results The PRA after 3 months wearing orthokeratology group (-4.32±1.59)D were much higher than the patients wearing frame glasses (-2.27±1.19)D. There was significant difference in PRA (P<0.05). There was no significant difference in NRA. The PRA after wearing orthokeratology (-4.22±1.67)D were higher than the PRA before wearing orthokeratology (-2.49±1.05) D, there was significant difference (P <0.05). Conclusions The PRA is increased after wearing orthokeratology, the accommodation is increased, and it may be the reasonable mechanism of orthokeratology controlling myopia progression. Key words: Myopia; Orthokeratology; Positive relative accommodation

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来源期刊

中国实用眼科杂志

自引率

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发文量

9101

期刊介绍： China Practical Ophthalmology was founded in May 1983. It is supervised by the National Health Commission of the People's Republic of China, sponsored by the Chinese Medical Association and China Medical University, and publicly distributed at home and abroad. It is a national-level excellent core academic journal of comprehensive ophthalmology and a series of journals of the Chinese Medical Association. China Practical Ophthalmology aims to guide and improve the theoretical level and actual clinical diagnosis and treatment ability of frontline ophthalmologists in my country. It is characterized by close integration with clinical practice, and timely publishes academic articles and scientific research results with high practical value to clinicians, so that readers can understand and use them, improve the theoretical level and diagnosis and treatment ability of ophthalmologists, help and support their innovative development, and is deeply welcomed and loved by ophthalmologists and readers.