Short-term effects of anti-vascular endothelial growth factor on peripapillary choroid and choriocapillaris in eyes with neovascular age-related macular degeneration

Boram Lee, Gyeongmin Yoo, Cheolmin Yun, Jae Ryung Oh

Research output: Contribution to journalArticle

Abstract

Purpose: To investigate the effects of anti-vascular endothelial growth factor (anti-VEGF) on the peripapillary choroid and choriocapillaris in eyes with neovascular age-related macular degeneration (nAMD). Methods: We included consecutive patients who underwent three monthly intravitreal injections of aflibercept or ranibizumab for nAMD, followed by swept-source optical-coherence tomography angiography (SS-OCTA). Peripapillary choroidal thickness (CT) and vascular density (VD) of the peripapillary choriocapillaris were measured in SS-OCT and OCTA images at baseline and at 1 month after three monthly injections of anti-VEGF. Results: In 68 eyes of 68 patients with nAMD, peripapillary CT decreased from 124.5 ± 69.9 μm to 116.5 ± 68.2 μm (P = 0.003) after three monthly intravitreal injections of anti-VEGF. The mean vascular density (VD) of the peripapillary choriocapillaris also decreased from 73.99 ± 6.33 to 71.82 ± 6.51 (P < 0.001). The change in the peripapillary choriocapillaris VD was significantly affected by baseline peripapillary choriocapillaris VD, baseline peripapillary CT, and type of nAMD (P = 0.004, P = 0.028, P = 0.015, respectively). The baseline VD of the choriocapillaris was lower in non-responders (median, 70.63; 25–75%, 68.12–71.27) than in responders (median, 75.32; 25–75%, 70.09–79.96) (P = 0.032). Conclusion: These results suggest that anti-VEGF injection influences the peripapillary choriocapillaris flow out of exudative lesions, and that its effects depend on the baseline status of the choroid and choriocapillaris.

Original languageEnglish
JournalGraefe's Archive for Clinical and Experimental Ophthalmology
DOIs
Publication statusPublished - 2019 Jan 1

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Keywords

  • Age-related macular degeneration
  • Optical coherence tomography angiography
  • Peripapillary choriocapillaris
  • Peripapillary choroidal thickness

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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