Vitreous fluorophotometry in diabetics: study of artifactual contributions.

A vitreous fluorophotometry study was performed on normal and diabetic subjects, with particular emphasis on instrumentation characterization (calibration and detection characteristics, axial resolution and intraocular optics). The role of lens fluorescence and post-lenticular spread function was explored, as well as the role of retinal fluorescence and pre-retinal spread function. Their influence on vitreous readings is discussed and the study of artifactual contributions presented.