Flow pattern and perforating vessels in three different phases of myopic choroidal neovascularization seen by swept-source optical coherence tomography angiography

2021 ◽  
Author(s):  
Kaori Sayanagi ◽  
Chikako Hara ◽  
Yoko Fukushima ◽  
Susumu Sakimoto ◽  
Ryo Kawasaki ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Flow Pattern ◽  
Choroidal Neovascularization ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Swept Source ◽  
Myopic Choroidal Neovascularization

scholarly journals Morphologic Features of Myopic Choroidal Neovascularization in Pathologic Myopia on Swept-Source Optical Coherence Tomography

2020 ◽  
Vol 7 ◽  
Author(s):  
Jiamin Xie ◽  
Qiuying Chen ◽  
Jiayi Yu ◽  
Hao Zhou ◽  
Jiangnan He ◽  
...  
Keyword(s):  
Risk Factors ◽  
Optical Coherence Tomography ◽  
Choroidal Neovascularization ◽  
Axial Length ◽  
Pathologic Myopia ◽  
Control Group ◽  
Optical Coherence ◽  
Swept Source ◽  
Myopic Choroidal Neovascularization ◽  
Myopic Cnv

Purpose: To investigate the morphologic features and identify the risk factors of myopic choroidal neovascularization (CNV).Methods: Eighty-eight eyes of 69 consecutive patients with myopic CNV were included in this study. About 109 eyes of 78 pathologic myopia patients without myopic CNV were randomly selected as the control group. Morphologic features and parameters including scleral thickness (ST), choroidal thickness (CT), posterior staphyloma height and the presence of scleral perforating vessels were obtained and measured by swept-source optical coherence tomography (SS-OCT). Binary logistic regression analysis was performed to identify the risk factors for myopic CNV.Results: Patients with myopic CNV had relatively shorter axial length (P < 0.001) and thicker sclera (P < 0.001) compared to those without. After adjusting age, gender and axial length, thick sclera (OR = 1.333, P < 0.001 per 10-μm increase) and thin choroid (OR = 0.509, P < 0.001 per 10-μm increase) were associated with the presence of myopic CNV. Scleral perforating vessels were detected in the area of myopic CNV in 78.67% of the subjects.Conclusions: A relatively thicker sclera and a thinner choroid are the biological indicators for myopic CNV on SS-OCT. Scleral perforating vessels may also play a pivotal role in the formation of myopic CNV.

scholarly journals Swept Source-Optical Coherence Tomography Angiography for Management of Secondary Choroidal Neovascularization in Punctate Inner Choroidopathy

2021 ◽  
pp. 232-238
Author(s):  
Martin Stattin ◽  
Julia Forster ◽  
Daniel Ahmed ◽  
Katharina Krepler ◽  
Siamak Ansari-Shahrezaei
Keyword(s):  
Optical Coherence Tomography ◽  
Choroidal Neovascularization ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Intravitreal Ranibizumab ◽  
Swept Source ◽  
Punctate Inner Choroidopathy ◽  
White Dot Syndrome ◽  
Oral Corticosteroids ◽  
Sd Oct

The purpose was to demonstrate the diagnostic and therapeutic feasibility of swept source-optical coherence tomography angiography (SS-OCTA) by picturing neovascular changes secondary to a rare white dot syndrome following long-term intravitreal ranibizumab (IVR). A 28-year-old Caucasian myopic female presented with visual loss in her right eye only. The clinical examination and multimodal imaging including spectral domain (SD)-OCT, blue-peak autofluorescence, fluorescein, and indocyanine green angiography (HRA Spectralis, Heidelberg Engineering; Heidelberg, Germany) as well as SS-OCTA (DRI Triton, Topcon; Tokyo, Japan) led to the diagnosis of idiopathic punctate inner choroidopathy with secondary subfoveal choroidal neovascularization (CNV). In addition to oral corticosteroids, a pro re nata regimen with IVR was initiated and guided by repeated SD-OCT and SS-OCTA. Six IVR were administered based on functional SS-OCTA en face scans illustrating vessel transformation and downsizing of the CNV area while SD-OCT B-scans were inconclusive as indirect signs of activity were absent throughout the follow-up period. SS-OCTA provided new possibilities for monitoring vessel development. IVR was managed based on vessel density as displayed by SS-OCTA.

Structural and optical coherence tomography angiography in myopic choroidal neovascularization: Agreement with conventional fluorescein angiography

2019 ◽  
pp. 112067211988233 ◽  
Author(s):  
Pierluigi Iacono ◽  
Paola Giorno ◽  
Monica Varano ◽  
Mariacristina Parravano
Keyword(s):  
Optical Coherence Tomography ◽  
Fluorescein Angiography ◽  
Choroidal Neovascularization ◽  
Optical Coherence Tomography Angiography ◽  
Subretinal Fluid ◽  
Final Visit ◽  
Ophthalmological Examination ◽  
Optical Coherence ◽  
External Limiting Membrane ◽  
Myopic Choroidal Neovascularization

Purpose: To evaluate the agreement between fluorescein angiography and structural optical coherence tomography in diagnosing and monitoring the activity of myopic choroidal neovascularization and to provide a comparative analysis with optical coherence tomography angiography. Methods: Thirteen patients with active myopic choroidal neovascularization were prospectively enrolled. At the baseline, 2-month, and 6-month visits, each patient underwent a complete ophthalmological examination, including best-corrected visual acuity assessment, fundus examination, fluorescein angiography, and optical coherence tomography with structural and angiographic assessment. Sensitivity and specificity for all optical coherence tomography parameters were evaluated taking fluorescein angiography as the reference examination. Results: At the baseline, fluorescein angiography confirmed myopic choroidal neovascularization leakage in all patients. Structural optical coherence tomography demonstrated intraretinal or subretinal fluid in 61% of cases, fuzzy borders and absence of external limiting membrane visibility in 84% of cases, and subretinal hyperreflective exudation in 53% of cases. Sensitivity to the presence of retinal fluid and subretinal hyperreflective exudation was lower than sensitivity to fuzzy borders and external limiting membrane visibility, which reached 84%. During ranibizumab therapy, external limiting membrane visibility showed a higher sensitivity (100%) compared with fuzzy borders and subretinal hyperreflective exudation (66.6%) while displaying an equal specificity of 100%. At baseline and final visit, sensitivity increased to 100% when all structural optical coherence tomography parameters were pooled. Optical coherence tomography angiography detected myopic choroidal neovascularization at baseline, 2-month, and 6-month visits in 92%, 76%, and 76% of cases, respectively. Conclusion: The study confirms that the new indicators of myopic choroidal neovascularization activity are more reliable than the presence or absence of retinal fluid. Optical coherence tomography angiography identified myopic choroidal neovascularization in most patients in the diagnostic phase and during treatment monitoring and could be considered as an alternative to fluorescein angiography in selected patients.

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