Changes in fundus microcirculation of myopic adolescents after wearing orthokeratology observed by optical coherence tomography angiography
10.3980/j.issn.1672-5123.2023.3.32
- VernacularTitle:应用OCTA观察青少年近视患者配戴角膜塑形镜后眼底微循环的变化
- Author:
Jia-Hui SHI
1
;
Li-Li LANG
1
;
Yi-Ping ZHAO
1
;
Gang LIU
1
;
Ji-Li CHEN
1
;
Wan-Cheng JIA
1
Author Information
1. Medical College, Anhui University of Science and Technology, Huainan 232001, Anhui Province, China; Department of Ophthalmology, South Campus of the Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 201400, China
- Publication Type:Journal Article
- Keywords:
optical coherence tomography angiography(OCTA);
orthokeratology;
myopia;
axial length;
vessel density
- From:
International Eye Science
2023;23(3):512-516
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To observe changes in fundus microcirculation of myopic adolescents after wearing orthokeratology by applying optical coherence tomography angiography(OCTA).METHODS: Prospective study. A total of 40 cases(40 eyes)of adolescents with low to moderate myopia who chose orthokeratology to correct visual acuity at our hospital from April 2021 to June 2022 were collected. The uncorrected distant visual acuity and axial length were evaluated at 1, 3 and 6mo before and after wearing orthokeratology, respectively. Furthermore, the changes in superficial vessel density(SVD), deep vessel density(DVD), central retinal thickness(CRT), foveal avascular zone area(FAZ-A), foveal avascular zone perimeter(FAZ-P), retinal nerve fiber layer(RNFL)thickness and radial peripapillary capillaries density(RPCD)were observed by applying OCTA.RESULTS: The uncorrected distant visual acuity was significantly improved at 1, 3 and 6mo after wearing orthokeratology(P<0.001). There was no statistically significant difference in axial length before and after wearing orthokeratology(P>0.05). Moreover, there were significant differences in both SVD of fovea quadrant and DVD of fovea and lower quadrant(P<0.01), but there were no differences in CRT, FAZ-A and FAZ-P, RNFL thickness and RPCD(P>0.05).CONCLUSION: Wearing orthokeratology can significantly improve visual acuity and increase local retinal vessel density in the macula in adolescents with low to moderate myopia.
