1. A method for quantitative three-dimensional (“3D”) image correction and clinical parameter computation in optical coherence tomography using a computer readable medium, the method comprising: segmenting of index interface refracting surfaces from raw optical coherence tomography (“OCT”) dataset from an OCT system; calculating normal vectors or partial derivatives of a curvature at each refracting surface to obtain a refracted image voxel; iteratively computing a new position of each desired refracted image voxel; interpolating of new refracted corrected voxel positions to an even sampling grid to provide corrected image data; and computing clinical outputs from the corrected image data.