Topcon Triton OCT: The generation game

When I first had a chance to try out the new OCT from the Topcon stable it was quite clear that the images produced allowed easy visualisation of some ocular structures previously not possible. The new instrument uses swept source OCT which allows excellent resolution images to be produced using a longer wavelength of incident light. To emphasise this, I took a single scan of Tim Coles, Topcon Imaging product manager who was on hand to guide me, who has significant floaters in his right eye. Note how the vitreous (Figure 1a) is significantly deteriorated from the more regular vitreous in his left eye (Figure 1b). Use of a longer wavelength also gives the new Triton OCT another distinct advantage – greater penetration of light offers excellent imaging beneath the retina, and choroidal structure now comes into view. To exploit this further, I arranged for three generations of the same family to attend our session and be scanned with the Triton.