Relationship between choroidal thickness and vascular density in young healthy population

脉络膜 眼科 医学 光学相干断层摄影术 眼压 视网膜 光学相干层析成像 解剖 视网膜 光学 物理
作者
F.A. Bartol-Puyal,Carlos Isanta,Pilar Calvo,Óscar Ruiz‐Moreno,Beatriz Abadía,Luís E. Pablo
出处
期刊:Archivos De La Sociedad Española De Oftalmología (english Edition) [Elsevier]
卷期号:98 (6): 329-337
标识
DOI:10.1016/j.oftale.2023.04.005
摘要

The purpose is to analyze choroidal vascular density (VD) in healthy individuals and to compare it with choroidal thickness (CT).Cross-sectional study enrolling healthy individuals between 18 and 35 years old of Caucasian race and with an axial length (AL) 21-26 mm. Choroid was imaged with swept-source optical coherence tomography angiography (OCTA) Triton DRI (Topcon) and a macular cube of 6 × 6 mm was obtained. CT values were automatically given by the software. VD values were obtained through codifying colors of the VD map into numbers.102 (51 patients) were analyzed. Mean age was 27.32 ± 3.94 years old, mean intraocular pressure was 18.07 ± 2.38 mmHg, and mean AL was 23.71 ± 0.66 mm. CT was higher in the vertical axis and lower when approaching nasal and temporal sides. The highest CT was in superior macula. The highest choroidal VD were in the fovea and in the juxtapapillary region. The lowest choroidal VD were found in superior and inferior macular areas. Moderate inverse correlations between CT and choroidal VD were found in the juxtapapillary and inferior regions.The choroid has a thickness pattern that differs from retina. Choroidal vessels represent a very high percentage of choroid in the peripapillary region and in the fovea. On the contrary, superior and inferior macula reveals low values of VD.
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