The retinal thickness analyzer (RTA) was developed to scan the posterior pole in 200 milliseconds and generate multiple optical cross sections of the retina that can be processed to yield a 3D map of the retinal thickness. The maps have been used to assess macular edema and to evaluate the effect of treatment. They have allowed the detection of ganglion cell and nerve fiber atrophy in glaucoma. The cross sections have been helpful clinically in enhancing the visualization and diagnosis of vitreoretinal and chorioretinal pathologies.
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