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. 2022 Dec 27;14(12):e32994. doi: 10.7759/cureus.32994

Figure 1. Exo-illumination MIOCT technique with a representative case.

Figure 1

A: Diagrammatic representation of the “Exo-illumination technique” showing the placement of RESIGHT 700 viewing system over the eye while the retina is illuminated using a 25G endoilluminator placed at the limbus, with the light beam directed tangentially and posteriorly (authors’ own creation); B: external view and; C: surgeon’s view showing the position of the endoilluminator and the viewing system; D: surgeon’s view during the procedure showing the optic disc and surrounding retina being visualised through the viewing system with the external light source and; E: the cube scan of the MIOCT focused just nasal to the optic disc; F upper image: MIOCT horizontal cross-sectional 4x4 mm size OCT scan showing normal retinal architecture with the optic disc at one end while; F lower image: the vertical OCT shows normal retinal architecture; G: a cube scan of the MIOCT focused just above the fovea; H upper image: MIOCT horizontal cross-sectional 8x8 mm size OCT scan of a patient (Case 9) showing neurosensory retinal architecture with subretinal haemorrhage with subtle neurosensory retinal detachment while the; H lower image: vertical OCT also shows subretinal haemorrhage (arrow).

MIOCT: microscope-integrated optical coherence tomography