Scanning laser ophthalmoscope-optical coherence tomography [SLO-OCT]: review of a newly emerging imaging technique

ABSTRACT

Scanning laser ophthalmoscope-optical coherence tomography [SLO-OCT] a combined innovative technology provides high-resolution, in depth images of the retina and SLO scans the retina to locate the area of the disease using a single source. The two scanning modes has enabled in better understanding of the extent of disease and aid physician with diagnostic challenges. It is useful in localizing accurately subtle pathology with enhancement of vitreo-retinal interface. The coronal scans are particularly useful to study the retinal pigment epithelial - choriocapillary interface pathology and verify subtle lesions noticed on cross sectional scans. Its ability to scan in undilated pupils is another advantage but requires utmost patient's cooperation. Little ocular movement causes difficulties in obtaining the image, also inability to scan in high myopes. The ability to fuse with other imaging system in future would make SLO-OCT a versatile compact diagnostic tool in the management of posterior segment pathology