The treatment zone size and its decentration influence axial elongation in children with orthokeratology treatment

Autor: Weiping Lin, Na Li, Tianpu Gu, Chunyu Tang, Guihua Liu, Bei Du, Ruihua Wei
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: BMC Ophthalmology, Vol 21, Iss 1, Pp 1-10 (2021)
Druh dokumentu: article
ISSN: 1471-2415
DOI: 10.1186/s12886-021-02123-x
Popis: Abstract Background To investigate whether the treatment zone size (TZS) and treatment zone decentration (TZD) will affect the axial elongation in myopic children undergoing orthokeratology treatment. Methods A self-controlled retrospective study was conducted on 352 children who met the inclusion criteria. Axial length was measured before and at 12 months after the initial lens wear. Corneal topography was measured at baseline and at each follow-up after lens wear. The Corneal topography obtained from the 12-month visit was used to quantify TZS and TZD for each subject. Cycloplegic refraction was required for all children before fitting the orthokeratology lenses. Results Axial elongation was significantly associated with age, baseline spherical equivalent (SE), TZS, and TZD with univariate linear regression. In groups with both small and large TZS, axial elongation was significantly decreased with large TZD (both P
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