Purpose: To describe vitreo-retinal imaging of eyes with vitreo-macular 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 patients with vitreo-macular interface abnormalities including epiretinal membranes, macular hole, incomplete posterior vitreous detachment, vitreo-macular traction syndromes and diabetic and cystoid macular edema. The longitudinal –B scan images and the transverse –C scan images in the coronal plane were used to describe vitreo-macular 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 of the inner retinal surface. Simultaneously obtained OCT scan and SLO image of the fundus offered exact co-localization of retinal structures and vitreo-macular interface abnormalities.
Conclusion: Scanning the vitreo-macular interface by using combined OCT and SLO enables the visualization and better understanding of various vitreo-macular interface abnormalities, due to the ability to co-localize pathology on OCT with retinal vascular landmarks and the ability to visualize pathology from a new perspective, coronal plane parallel to retinal surface.