Short-term curative effects of orthokeratology on young myopia patients

Objective To investigate the effects of short-term curative effect of overnight orthokeratology on young myopia patients.Methods One hundred and forty eyes of 71 young myopia patients from 8 years old to 15 years old,the mean equivalent spherical was(-3.62±1.55)D(from-8.00 D to-15.00 D),were fitted with Ortho-K contact lens with overnight wear.The diopter,uncorrected visual acuity(UCVA),corneal curvature and axial length were observed at 1 day,1 week,1 month,3 months and 6 months after wearing.The complication was examined by slit-lamp microscope.Results UCVA was improved from 0.18±0.12 at baseline to 0.93±0.13,0.90±0.19,0.89±0.15 at 1 month,3 months and 6 months after wearing,there was significant difference(P0.001).The diopter decreased(2.53±1.43)D,(2.13±1.39)D,(2.17±1.96)D at 1 month,3 months and 6 months after wearing compared with that before wearing,there was significant difference(P0.001).The corneal curvature was flattening and decreased(2.01±1.01)D,(2.33±1.24)D,(1.72±1.06)D,there was significant difference(P0.001).Although the axial length increased(0.10±0.43)mm after 6 months wearing,the difference was not significant compared with that before wearing(P=0.086).The punctiform corneal epithelial denudation,double image and conjunctivitis appeared in few patients after wearing,and all cured after treatment.Conclusion Short-term curative effect of overnight orthokeratology on young myopia patients is safe and efficient,which can control the development of myopia.