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Relationship between vascular densities of choriocapillaris and the whole choroid using OCTA

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Abstract

Purpose

To study the vascular density (VD) of choriocapillaris and the whole choroid using optical coherence tomography-angiography (OCTA).

Methods

Cross-sectional study enrolling healthy individuals between 18 and 35 years old and with an axial length (AL) lower than 26 mm, who were examined with swept-source OCTA Triton DRI (Topcon). Color pictures of both VD were obtained from a fovea-centered 6 × 6 mm macular exam, which were divided into 900 squares and codified into numbers.

Results

A total of 50 patients (100 eyes) with a mean age of 27.29 ± 3.90 years and a mean AL of 23.67 ± 0.74 mm were analyzed. The highest choroidal VD was found in juxtapapillary macula, being followed by the most temporal macula and fovea. The lowest was found in superior and inferior perifoveal areas. The highest VD in choriocapillaris was in the fovea. VD in this layer was uniform, with a decrease from temporal toward nasal. Both VD differed and but correlated, especially in the fovea and in inferior-temporal macula.

Conclusion

VD of choriocapillaris and the whole choroid are not similar. The former is maximal in the fovea, and the latter is maximal in the juxtapapillary macula. In general lines, choroidal VD is higher than that of choriocapillaris. Both VD are directly correlated.

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Availability of data and material

Data are available at the Miguel Servet University Hospital.

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Authors and Affiliations

  1. Ophthalmology department, Miguel Servet University Hospital, Paseo Isabel la Católica, 1-3, 50009, Zaragoza, Spain

    Francisco de Asís Bartol-Puyal, Pilar Calvo, Óscar Ruiz-Moreno & Luis Pablo

  2. Ophthalmology Innovative and Research Group (GIMSO), Aragón Institute for Health Research (IIS Aragón), Zaragoza, Spain

    Francisco de Asís Bartol-Puyal, Carlos Isanta, Pilar Calvo, Óscar Ruiz-Moreno & Luis Pablo

  3. University of Zaragoza, Zaragoza, Spain

    Francisco de Asís Bartol-Puyal, Óscar Ruiz-Moreno & Luis Pablo

Authors
  1. Francisco de Asís Bartol-Puyal
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  2. Carlos Isanta
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  4. Óscar Ruiz-Moreno
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Correspondence to Francisco de Asís Bartol-Puyal.

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Bartol-Puyal, F., Isanta, C., Calvo, P. et al. Relationship between vascular densities of choriocapillaris and the whole choroid using OCTA. Int Ophthalmol 40, 3135–3143 (2020). https://doi.org/10.1007/s10792-020-01500-7

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  • DOI: https://doi.org/10.1007/s10792-020-01500-7

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