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Detection of retrobulbar blood vessels in optical coherence tomography
angiographic images in eyes with pathologic myopia
#MMPMID29503932
Maruko I
; Koizumi H
; Hasegawa T
; Iida T
Am J Ophthalmol Case Rep
2016[Dec]; 4
(?): 74-77
PMID29503932
show ga
PURPOSE: To report the detection of retrobulbar blood vessel in the optical
coherence tomography angiographic (OCTA) images of two eyes with pathologic
myopia. OBSERVATIONS: Two eyes of 2 cases with pathologic myopia were examined by
OCTA (RTVue XR Avanti, Optovue, and Cirrus 5000, Zeiss). Case 1 was a 64-year-old
man, and Case 2 was a 65-year-old woman. In Case 1, the thickness of the
subfoveal choroid was 38 ?m and the sclera was 274 ?m, and they were 17 ?m and
214 ?m, respectively, in Case 2. The axial length was 35.8 mm in Case 1 and
29.5 mm in Case 2. The choroidal vessels were clearly visible in the
choriocapillary slab in both the RTVue and the Cirrus images. The vessels were
visible in the area of the retinal pigment epithelial and choriocapillaris
atrophy due to the pathologic myopia. The retrobulbar blood vessels temporal to
fovea were seen in the OCTA images at the level of the outer aspect of the sclera
in both cases. Cross sectional images of the retrobulbar blood vessel in both
cases were observed under the sclera in serial scan images overlaid with blood
flow. CONCLUSIONS: and Importance: These in situ images of the retrobulbar blood
vessels that were obtained by OCTA was possible because of the thinness of the
choroid and sclera and atrophy of the choriocapillaris in these eyes with
pathologic myopia. We conclude that OCTA might have utility to study the
retrobulbar vascular alterations in eyes with pathologic myopia.
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