[Improved method of lens photograpy using retroillumination (author's transl].

: Lens photography with a fundus camera using retroillumination is suited for long term follow-ups of senile cataract development. An improved method using a 9 grade colour standard is presented, which makes a comparative evaluation of the colour of the fundus reflex possible. A colour filter effect of the lens nucleus in nuclear sclerosis can thus be evaluated.