[Surgical anatomy of corneoscleral limbus]

A study of surgical dissection of the corneo-scleral limbus is described, using a comparison between per-operative photographical and histological slides of the same operative place. It confirms the discovery of the constitutive elements of the limbus when the lamellisation of the sclera is made very deep, in a supra ciliaris situation. This technique makes clear the exact place of the scleral spur as an essential surgical spot. Also it shows the disproportion existing between the diameter of the instruments made for Schlemm's canal catheterism and the size of the canal itself.