Vitreous changes were cardinal findings.Vitreous cells were noted in 27(77%) eyes, snowball in 15(43%) and retrolental condensation in 7(20%).Snowbank was found in only 1(3%) eye.
We also describe the basic principle of white dwarf cosmochronology and its application in defining the age of the Galactic disk, globular clusters, open clusters and Galactic halo.