June 2023
Volume 64, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2023
Changes in peripheral choroidal structure following vitrectomy for rhegmatogenous retinal detachment evaluated with wide field peripheral OCT
Author Affiliations & Notes
  • Yoshimi Sugiura
    Ophthalmology, Tsukuba Daigaku Igaku Iryokei, Tsukuba, Ibaraki, Japan
  • Yoshikiyo Moriguchi
    Kabushiki Kaisha Topcon, Itabashi-ku, Tokyo, Japan
  • Masahiro Akiba
    Kabushiki Kaisha Topcon, Itabashi-ku, Tokyo, Japan
  • Masahiko Sano
    Kaiya eyes clinic, Hamamatsu, Shizuoka, Japan
  • Tadayoshi Kaiya
    Kaiya eyes clinic, Hamamatsu, Shizuoka, Japan
  • Takahiro Hiraoka
    Ophthalmology, Tsukuba Daigaku Igaku Iryokei, Tsukuba, Ibaraki, Japan
  • Tetsuro Oshika
    Ophthalmology, Tsukuba Daigaku Igaku Iryokei, Tsukuba, Ibaraki, Japan
  • Footnotes
    Commercial Relationships   Yoshimi Sugiura Novartis, Bayer, Santen, Senju, Code R (Recipient); Yoshikiyo Moriguchi None; Masahiro Akiba None; Masahiko Sano None; Tadayoshi Kaiya Topcon, Code F (Financial Support); Takahiro Hiraoka None; Tetsuro Oshika Topcon, Code F (Financial Support)
  • Footnotes
    Support  Topcon Corp. supported this study.
Investigative Ophthalmology & Visual Science June 2023, Vol.64, 3371. doi:
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    • Get Citation

      Yoshimi Sugiura, Yoshikiyo Moriguchi, Masahiro Akiba, Masahiko Sano, Tadayoshi Kaiya, Takahiro Hiraoka, Tetsuro Oshika; Changes in peripheral choroidal structure following vitrectomy for rhegmatogenous retinal detachment evaluated with wide field peripheral OCT. Invest. Ophthalmol. Vis. Sci. 2023;64(8):3371.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : To evaluate structural changes in the peripheral choroid following vitrectomy in patients with rhegmatogenous retinal detachment (RRD) using the conventional model of optical coherence tomography (OCT) and the prototype of wide field OCT for peripheral imaging.

Methods : OCT measurements were conducted before and after 25-gauge pars plana vitrectomy in 5 eyes of 5 patients with macula-on RRD. In 3 eyes, three-dimensional OCT images were obtained with the conventional swept-source OCT (SS-OCT) (DRI OCT Triton; Topcon Corp., Tokyo, Japan). In 2 eyes having peripheral RRD, OCT images were recorded using the prototype wide field SS-OCT (Topcon Corp., Japan) with swing/tilt functions. Choroidal thickness was measured at two locations, at the border of RRD and subfoveal region. Choroidal vessel diameter was measured using the depth-integrated en-face OCT images within the choroidal layer, which was then compared before and after surgery.

Results : More peripheral choroidal area was observed with the prototype wide field SS-OCT than with the conventional SS-OCT. Both devices could not clearly visualize the choroidal structures right beneath the detached retina due to strong signal attenuation. There were no significant changes in choroidal thickness before and after vitrectomy at the border of RRD (P = 0.286) and subfoveal region (P = 0.742). Similarly, choroidal vessel diameter assessed with the en-face image did not change significantly by surgery (P = 0.199).

Conclusions : The prototype wide field OCT was able to evaluate more peripheral choroidal structures. In the early postoperative period, vitrectomy for RRD did not cause significant changes in the thickness of peripheral choroid and the diameter of choroidal vessels.

This abstract was presented at the 2023 ARVO Annual Meeting, held in New Orleans, LA, April 23-27, 2023.

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