Fig. 10. Human vitreous morphology in old age. The central vitreous has thickened, tortuous fibers. The peripheral vitreous has pockets that do not scatter light. These areas contain liquid vitreous and correspond to lacunae as seen clinically on biomicroscopy. (Sebag J, Balazs EA: Human vitreous fibres and vitreoretinal disease. Trans Ophthalmol Soc UK 104:123, 1984)