More than twenty years have now passed since I first observed that certain cases of serpiginous ulcer of the cornea, in which no further progress was noticed after they came into my hands, presented the features I am about to describe, and since then I have not seen a case in which they were present that did not heal under very simple treatment.
From the margin of the ulcer straight or nearly straight lines, broadest at the ulcer and gradually tapering, diverge in all directions somewhat obliquely, through the parenchyma of the deepest layer. They never give off branches. The further end of these diverging lines are connected by grayish intermediate striæ, of the same width throughout, and running at right angles to them. If present all around these intermediate linear opacities form a complete ring of the same form as the margin of the ulcer, but situated more deeply,
KIPP CJ. THE TREATMENT OF SERPIGINOUS ULCER OF THE CORNEA.. JAMA. 1902;XXXIX(6):293-296. doi:10.1001/jama.1902.52480320003001a