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International Ophthalmology

, Volume 38, Issue 5, pp 1887–1893 | Cite as

Choriocapillaris’ alterations in the presence of reticular pseudodrusen compared to drusen: study based on OCTA findings

  • Irini Chatziralli
  • George Theodossiadis
  • Dimitrios Panagiotidis
  • Paraskevi Pousoulidi
  • Panagiotis Theodossiadis
Original Paper

Abstract

Purpose

To evaluate the qualitative changes of choriocapillaris in the presence of reticular pseudodrusen (RPD) and compare them with conventional small drusen due to dry age-related macular degeneration (AMD).

Procedures

Participants in this study were 59 patients with non-neovascular AMD, presenting either RPD (23 patients) or drusen (36 patients) of similar size. All patients underwent best-corrected visual acuity, slit-lamp examination, spectral domain optical coherence tomography (SD-OCT) and optical coherence tomography angiography.

Results

The morphology of RPD in SD-OCT was depicted either as conical or as amorphous in shape. Both types were found to affect the ellipsoid zone. The presence of RPD was associated with choriocapillaris’ reduced blood flow signal (non-perfusion), while the same but less intense choriocapillaris’ non-perfusion appearance was noticed in the presence of drusen of the same size. In 13% of patients with RPD, ghost-like vessels were observed in the non-perfusion area of choriocapillaris, while in none patients with drusen ghost vessels were present. In all 23 patients with RPD, the choriocapillaris non-perfusion was correspondent to the location of RPD. Additionally, in about 35% of them, choriocapillaris’ impairment was also observed, covering areas outside RPD.

Conclusions

Morphological impairment of choriocapillaris was more intense in patients with RPD than in those with conventional drusen of the same size. The existence of ghost vessels in the area of choriocapillaris’ density defect suggested that choriocapillaris’ alterations may occur in patients with RPD.

Keywords

Age-related macular degeneration Drusen Optical coherence tomography Reticular pseudodrusen 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  • Irini Chatziralli
    • 1
  • George Theodossiadis
    • 1
  • Dimitrios Panagiotidis
    • 2
  • Paraskevi Pousoulidi
    • 2
  • Panagiotis Theodossiadis
    • 1
  1. 1.2nd Department of OphthalmologyUniversity of AthensHaidari, AthensGreece
  2. 2.Macula CenterAthensGreece

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