不同光学设计角膜塑形镜控制近视进展的临床观察

doi:10.3760/cma.j.issn.1674-845X.2012.02.005

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Abstract Objective To evaluate the effect of different optical designs for orthokeratology in controlling the development of myopia in pre-adolescents. Methods In this prospective study， different optical designs for orthokeratology (design 1， design 2， design 3) were used in the correction of refractive errors for 254 eyes of 254 low to moderate myopic patients. Axial length (AL) was measured before and after orthokeratology. Data were analyzed with a paired t test， independent samples t test and one-way ANOVA. Results After 1 year， AL increased by （0.11±0.16）mm，（0.20±0.18）mm in the low myopia group and （0.09±0.14）mm in the moderate myopia group， indicating a statistically significant difference compared with those before lens wear （t=-11.41， P<0.01； t=-8.33， P<0.01； t=-8.73， P<0.01）. The change in AL in the low myopia group was greater than in the moderate myopia group (t=-4.212， P<0.01). The rate of increase in AL showed significant differences for the 3 designs， with design 3 having the slowest rate （F=4.32， P=0.018； F=5.58， P=0.004）. Conclusion Different optical designs for orthokeratology have different effects in reducing myopia progression. Different peripheral refractive patterns induced by different optical designs could be the active mechanisms.

Key words： Orthokeratology Axial length Refraction ocular peripheral

Received: 06 March 2011

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	Articles by authors
	ZHU Meng-jun
	FENG Hao-yan
	QU Xiao-mei

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ZHU Meng-jun,FENG Hao-yan,QU Xiao-mei. The effect of different optical designs for orthokeratology in controlling the development of myopia in pre-adolescents[J]. Chinese Journal of Optometry Ophthalmology and Visual Science, 2012, 14(2): 82-85.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2012.02.005 OR https://www.cjoovs.com/EN/Y2012/V14/I2/82

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