The systems should be especially valuable for research and diagnostic support in dealing with retinoblastoma, a leading cause of blindness among children, according to Eric Buckland, PhD, Bioptigen president and CEO. Figure 5. 3-D scans from the Topcon DRI OCTi-1 illustrate the depth of the 1050-nm wavelength: A) pigment epithelium detachment; B) vitreo-macular traction; C) DME.