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Imaging vitreomacular interface abnormalities in the coronal plane by simultaneous combined scanning laser and optical coherence tomography
  1. A M Tammewar1,
  2. D-U Bartsch1,
  3. I Kozak1,
  4. R Rosen2,
  5. I A Falkenstein1,
  6. P Garcia2,
  7. W R Freeman1
  1. 1
    Joan and Irwin Jacobs Retina Center at Department of Ophthalmology, Shiley Eye Center, University of California San Diego, La Jolla, California, USA
  2. 2
    New York Eye and Ear Infirmary, New York, USA
  1. Dr W R Freeman, Joan and Irwin Jacobs Retina Center, Shiley Eye Center, University of California San Diego (UCSD), 9415 Campus Point Drive, La Jolla, CA 92037, USA; freeman{at}


Aim: To describe vitreoretinal imaging of eyes with vitreomacular abnormalities using high-resolution coronal-plane optical coherence tomography (OCT) scanning combined with simultaneous scanning laser ophthalmoscope (SLO) imaging.

Methods: A SLO–OCT (OTI, Canada) was used to scan 835 eyes in 736 patients with vitreomacular interface abnormalities including epiretinal membranes, macular hole, incomplete posterior vitreous detachment, vitreomacular traction syndromes and diabetic and cystoid macular oedema in a retrospective study. The longitudinal-B scan images and the transverse -C scan images in the coronal plane were used to describe vitreomacular interface abnormalities. The SLO–OCT simultaneously produces a confocal image of the retina.

Results: The longitudinal “B” scan and en-face “C” scan images allowed identification of tractive forces of epiretinal membrane, contour of the hyaloid membrane and changes in inner retinal surface. A simultaneously obtained OCT scan and SLO image of the fundus offered exact co-localisation of retinal structures and vitreomacular interface abnormalities.

Conclusion: Scanning the vitreomacular interface by using combined OCT and SLO enables the visualisation and better understanding of various vitreomacular interface abnormalities, due to the ability to colocalise pathology on OCT with retinal vascular landmarks and the ability to visualise pathology from a new perspective, coronal plane parallel to retinal surface.

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  • Funding: This research was supported in part by the National Eye Institute NIH-NEI grant EY16323 (Bartsch DU), NIH grant #EY07366 (Freeman WR), Research to Prevent Blindness (WRF is the recipient of an RPB Physician Scientist award and departmental support to UCSD), and Jacobs Retina Center Research Funds.

  • Competing interests: None.

  • Ethics approval: Ethics approval was provided by the University of California San Diego Human Research Protections Program.