Sources of intraocular light scatter from inversion of an empirical glare function

Many questions remain concerning the sources of intraocular light scatter. One approach, inversion of the empirical disability glare function, implies that refractive-index fluctuations extend over distances of tens of micrometers. Randomly placed inhomogeneities of these sizes, such as protein aggregates, are ruled out. It is argued that refractive-index fluctuations associated with the lens fiber lattice are capable of contributing significantly to intraocular scatter and that they provide the necessary large spatial extent.