Effects of posterior staphyloma on choroidal structure in myopic adults: a retrospective study

BMC Ophthalmology

Research

Jiao Sun¹  Zhuo-hua Zhou¹  Jia-lin Wang¹  Pian-pian Xiong¹  Yan-ling Wang¹ 

[1] Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Yong An Road 95th, Tian Qiao Street, 100050, Beijing, China;

关键词: Choroidal vascularity index;    Posterior staphyloma;    Myopia;    Axial growth;   

DOI  :  10.1186/s12886-023-03158-y

 received in 2023-06-09, accepted in 2023-09-28,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundStudies on the choroid of myopic eyes with posterior staphyloma have shown that choroidal thickness decreased. This retrospective study further analysed the effects of posterior scleral staphyloma on choroidal blood vessels and matrix components compared to non-pathological myopia.MethodsIn this cross-sectional study, ninety-one eyes were divided into pathological (posterior staphyloma) and non-pathological myopia. The latter was further divided into three groups (Group 1: 26 mm ≤ axial length; Group 2: 24 mm ≤ axial length < 26 mm; Group 3: 22 mm ≤ axial length < 24 mm). Choroidal thickness, total choroidal area, luminal area, stromal area, and choroidal vascularity index were calculated.ResultsThe CVI in N1, N2, I1, S2 of the posterior staphyloma group were lower than those of group 1 (both P < 0.05). The mean height of posterior staphyloma was associated with mean CT (Pearson correlation: r = -0.578, P = 0.039) but not with the mean CVI in posterior staphyloma group. In all groups, the mean choroidal thickness, total choroidal area, luminal area, and stromal area were significantly associated with axial length (P < 0.001), and the mean choroidal vascularity index was significantly associated with the mean choroidal thickness (P < 0.001).ConclusionThe choroidal structure of pathological myopia with posterior staphyloma and non-pathological myopia with longer axial length demonstrates alterations in which choroidal vessels are more impaired than the stroma. A lower choroidal vascularity index should be alert to pathological changes for myopia with axial length > 26 mm.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

【 图 表 】

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Fig. 1