Objective To explore the clinical analysis of controlling myopia progression in children and adolescents with small light heart design plastic keratology mirror.Methods A total of 60 patients with low myopia aged 8-15 years old who were treated in the ophthal-mology outpatient department of Haining People's Hospital from December 2022 to June 2023 were selected and divided into design group 1(n=20),design group 2(n=20)and design group 3(n=20)according to different optical design of orthokeratology len-ses.Orthokeratology lenses with optical area diameter of 5.0 mm,5.5 mm and 6.0 mm were worn to compare axial length,diopter,pupil diameter,corneal tear film function and adverse reactions in each group.Results After 1 year of wear,the axial length of eye in design group 1,design group 2 and design group 3 were(23.19±0.93)mm,(23.50±0.23)mm and(23.99±0.25)mm,respectively.The axi-al length of eye in design group 1 was lower than that in design group 2 and design group 3(P＜0.05).The increase of diopter in design group 1 was slower than that in design group 2 and 3(P＜0.05).The cell area difference coefficient and tear film rupture time of design group 1 were lower than those of design group 2 and 3(P＜0.05).The incidence of adverse reactions in design group 1,design group 2 and design group 3 was 20.00％,20.00％and 25.00％,respectively,with no statistical significance(x2=0.196,P=0.996).Conclusion Compared with orthokeratology lens with optical area diameter of 5.5 mm and 6.0 mm,wearing orthokeratology lens with optical area di-ameter of 5.0 mm is more effective in controlling ocular axis growth in children and adolescents with low myopia,and does not increase ad-verse reactions.
MyopiaOrthokeratology lensOcular axis changeDiopterCorneal tear film functionAdverse reaction
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