Choroidal Perfusion Changes After Vitrectomy for Myopic Traction Maculopathy

The choroidal vasculature supplies the outer retina and is altered in many retinal diseases, including myopic traction maculopathy (MTM). Choroid health is typically assessed by measuring the choroidal thickness; however, this method has substantial limitations. The choroidal vascularity index (CVI)...

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Bibliographic Details
Published in:Seminars in ophthalmology 2024-05, Vol.39 (4), p.261-270
Main Authors: Quiroz-Reyes, Miguel A, Quiroz-Gonzalez, Erick A, Quiroz-Gonzalez, Miguel A, Lima-Gomez, Virgilio
Format: Article
Language:English
Subjects:
Choroid - blood supply
Humans
Macular Degeneration
Myopia
Perfusion
Retrospective Studies
Tomography, Optical Coherence - methods
Traction
Vitrectomy - methods
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Summary:The choroidal vasculature supplies the outer retina and is altered in many retinal diseases, including myopic traction maculopathy (MTM). Choroid health is typically assessed by measuring the choroidal thickness; however, this method has substantial limitations. The choroidal vascularity index (CVI) was recently introduced to provide quantitative information on the vascular flow in the choroid. This index has been evaluated in a wide range of diseases but has not been extensively used to characterize MTM. This study aimed to investigate the CVI across different stages of MTM and the influence of macular surgery on choroidal perfusion markers in different surgically resolved MTM stages. Eighteen healthy myopic eyes in the control group and forty-six MTM eyes in the surgical group were evaluated using enhanced optical coherence tomography (OCT) imaging. Binarized OCT images were processed to obtain the luminal choroidal area (LCA) and stromal choroidal area (SCA), which were used to calculate CVI in the form of a percentage ratio. CVI data were collected at baseline, one and four months postoperatively, and at the final clinical visit. MTM eyes were divided into four stages based on disease severity. The choriocapillaris flow area (CFA) and central subfield thickness (CSFT) were measured along side the CVI. No significant differences were observed between the two groups at baseline, except for visual acuity (  
ISSN:0882-0538
1744-5205
DOI:10.1080/08820538.2023.2283029