One of the striking discoveries made with the slit lamp is the syndrome "exfoliatio capsulae anterioris lentis." Though it has been known for only two decades, the subject can boast of a history. Even the name under which it has been described has often been changed, coincident with the progress of knowledge.
In December 1939 and January 1940 two papers appeared in the English language, the first,1 awarded the Middlemore prize for 1939, on the underlying causes of glaucoma. Regarding the subject under discussion, Evans stated :
Exfoliation of the anterior lens capsule has received attention from Vogt (1925) and in 1932 Sobhy Bey drew attention to its association with glaucoma, as also did Horven in 1937. These flakes are rubbed from the surface of the lens capsule by movements of the iris and then pass to the filtration angle which they appear to obstruct. Mallin, however, states that these