Control effects of different optical correction methods on adolescent myopia / 眼科新进展

ABSTRACT

Objective To compare the changes of diopter and axial length(AL) m 2 years after wearing orthokeratology lens,rigid gas permeable contact lens (RGPCL) and spectacles in adolescent myopia,and evaluate the control effects of different methods on adolescent myopia.Methods Prospective clinical study.The date of 99 eyes of 50 adolescent myopia cases wearing orthokeratology,95 eyes of 48 adolescent myopia cases wearing RGPCL,and 100 eyes of 50 adolescent myopia cases wearing full correction single vision spectacles were collected from June 2012 to June 2014.The follow-up time was 2 years.The status of diopter and AL before and wore mirror after 2 years and the uncorrected visual acuity (UCVA) in group of orthokeratology were recorded.The examinations were repeated after 2 years without wearing orthokeratology and RGPCL at least 30 days.Results There was no statistical difference in age,refractive status and AL among three groups before wearing the mirror.After wearing for 2 years,AL and spherical equivalent in three groups were increased (F =278.43,140.12;all P ＜ 0.01).The increase of AL and SE was as followsorthokeratology group (0.30 ± 0.39) mm,(0.83 ±0.97) D;RGPCL group (0.55 ± 0.41) mm,(1.55 ± 0.63) D;spectacles group (0.59 ± 0.34)mm,(1.73 ± 0.62)D.The increase of orthokeratology group was the least,and there was no statistical difference between the other two groups.UCVA was significantly improved at each time point after wearing orthokeratology(F =486.38,P ＜0.01).Conclusion In the three optical correction methods of orthokeratology,RGP and spectacles,the ortho-keratology is the best on controlling adolescent myopia,and no difference between the other two.At the same time,wearing orthokeratology can also significantly improve UCVA in myooia cases.