Acta Diabetologica

, Volume 55, Issue 9, pp 927–934 | Cite as

Choroidal thickness changes in non-treated eyes of patients with diabetes: swept-source optical coherence tomography study

  • Hajnalka HorváthEmail author
  • Illés Kovács
  • Gábor László Sándor
  • Cecília Czakó
  • Klaudia Mallár
  • Zsuzsanna Récsán
  • Anikó Somogyi
  • Zoltán Zsolt Nagy
  • Mónika Ecsedy
Original Article



To measure choroidal thickness (CT) in diabetic eyes and its correlation with metabolic status and the severity of diabetic retinopathy (DR).

Materials and methods

Prospective cross-sectional study using swept-source optical coherence tomography. CT maps of 96 treatment naïve eyes of 48 patients with diabetes were compared to 46 eyes of 23 healthy controls. CT changes and their relation to diabetes, age, gender, disease duration, hypertension (HT), hemoglobin A1c level, type and severity of DR were evaluated.


A significantly thinner choroid was measured in patients with diabetes compared to controls (p < 0.009). In the diabetic group age, gender, disease duration and HT were significantly correlated with CT in univariable regression models (p < 0.05). In multivariable analysis, the duration of diabetes significantly negatively correlated with CT (p = 0.02). According to analysis of variance, there was a significant difference among means of CT in different stages of DR (p = 0.002), with thinner CT in cases with more advanced DR. In a multivariable predictive model, thinner CT was associated with an increased risk for the presence of DR (p = 0.02).


Diabetes mellitus itself and the severity of DR affect CT significantly, even after adjusting for the effects of confounding systemic factors. Disease duration seems to be associated with a reduction of choroidal thickness. Decreased CT proved to be correlated with the severity of DR.


Choroidal thickness Diabetic retinopathy Diabetic choroidopathy Swept-source optical coherence tomography 


Compliance with ethical standards

Statement of human and animal rights

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008.

Statement of informed consent

Written informed consent was obtained before the examination from each patient, as well as the approval from our institutional ethics committee.

Conflict of interest

None of the authors have any financial/conflicting interests to disclose.


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Copyright information

© Springer-Verlag Italia S.r.l., part of Springer Nature 2018

Authors and Affiliations

  • Hajnalka Horváth
    • 1
    Email author
  • Illés Kovács
    • 1
  • Gábor László Sándor
    • 1
  • Cecília Czakó
    • 1
  • Klaudia Mallár
    • 1
  • Zsuzsanna Récsán
    • 1
  • Anikó Somogyi
    • 2
  • Zoltán Zsolt Nagy
    • 1
  • Mónika Ecsedy
    • 1
  1. 1.Department of OphthalmologySemmelweis UniversityBudapestHungary
  2. 2.2nd Department of Internal MedicineSemmelweis UniversityBudapestHungary

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