To Evaluate the Efficacy and Safety of Orthokeratology Lenses with a Back Optical Diameter Of 5.0mm and 6.0mm in Controlling Myopia Progression in Chinese Children
Keywords:
Myopia, Orthokeratology Lenses， Back Optical Zone Diameter， Axial Length， Treatment ZoneAbstract
This study evaluates the efficacy and safety of orthokeratology lenses with back optical zone diameters (BOZD) of 5.0 mm and 6.0 mm in controlling myopia progression in Chinese children. The retrospective study included patients aged 6 to 15 years, divided into two groups based on BOZD. Over a one-year observation period, the group with a smaller BOZD (5.0 mm) showed significantly lower axial length growth (0.163 mm) compared to the group with a larger BOZD (6.0 mm), which had an axial length growth of 0.282 mm. This represents a 42.2% improvement in myopia control for the 5.0 mm group. The study also revealed that younger
children (6-11 years) experienced better myopia control than older children (12-15 years), and the axial length growth was lower in children with high myopia compared to those with low myopia. Visual acuity remained similar between both groups, and no significant adverse events were reported. The results suggest that orthokeratology lenses with a smaller BOZD provide
better myopia control in Chinese children.
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References
Batres, L., Peruzzo, S., Serramito, M., & Carracedo, G. (2020). Accommodation response and spherical aberration during orthokeratology. Graefe’s Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie, 258(1), 117–127.
https://doi.org/10.1007/s00417-019-04504-x
Chen, J., Liu, S., Zhu, Z., Bulloch, G., Naduvilath, T., Wang, J., Du, L., Yang, J., Zhang, B., Zou, H., Xu, X., & He, X. (2023). Axial length changes in
progressive and non-progressive myopic children in China. Graefe’s Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes
Archiv Fur Klinische Und Experimentelle Ophthalmologie, 261(5), 14931501. https://doi.org/10.1007/s00417-022-05901-5
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