ROLE OF DILATED SUBFOVEAL CHOROIDAL VEINS IN EYES WITH MYOPIC MACULAR NEOVASCULARIZATION
| Autor: | Muka Moriyama, Yuka Onishi, Yuxin Fang, Tae Yokoi, Shiqi Xie, Watanabe Takashi, Kyoko Ohno-Matsui, Ran Du |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Male
Fovea Centralis medicine.medical_specialty Afferent arterioles genetic structures Fundus Oculi Indocyanine green angiography Efferent Hemodynamics Retinal Neovascularization Neovascularization medicine.artery Ophthalmology Myopia medicine Humans Fluorescein Angiography Aged Retrospective Studies Aged 80 and over Choroid business.industry Mean age General Medicine Axial length Short posterior ciliary arteries Middle Aged Retinal Vein eye diseases medicine.anatomical_structure Female sense organs medicine.symptom business Tomography Optical Coherence Dilatation Pathologic Follow-Up Studies |
| Zdroj: | Retina. 41:1063-1070 |
| ISSN: | 0275-004X |
| DOI: | 10.1097/iae.0000000000002970 |
| Popis: | Purpose To investigate the dilated choroidal veins (DCVs) at or around myopic macular neovascularizations (MNVs) and to determine whether there is a hemodynamic relationship between them. Methods Fifty-eight eyes of 57 patients with myopic MNVs were examined. Dilated choroidal veins were defined as choroidal veins whose diameter was 2X larger than adjacent veins. Indocyanine green angiography and swept-source optical coherence tomography images were reviewed to detect DCVs that crossed the subfoveal area. The filling sequence of the DCVs and MNVs was determined. Results Patients' mean age was 71.4 ± 10.6 years. The mean axial length was 29.3 ± 1.8 mm. Dilated choroidal veins below or around the MNV were found in 17 eyes (29.3%). Emissaries of the short posterior ciliary arteries were seen at or around MNVs in 8 of the 17 eyes. In these eyes, the short posterior ciliary artery was filled first or almost simultaneously with the filling of the MNV, followed by a laminar filling of the DCVs. In one eye, afferent arterioles from the short posterior ciliary arteries and efferent venules connected to DCVs were seen. Conclusion Dilated choroidal veins are present below or around MNVs in about 30% of eyes with myopic MNVs. Our findings suggest that an MNV might be a vascular unit consisting of short posterior ciliary arteries, afferent arterioles, efferent venules, and DCVs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|