Corneal epithelial iron lines commonly occur, and their shape is chara
cteristically influenced by the underlying corneal surface topography.
We studied a pattern of iron deposition, observed after implantation
of the Intrastromal Corneal Ring (Kera Vision, Inc., Santa Clara, Cali
fornia). In five of ten patients undergoing placement of the Intrastro
mal Corneal Ring, an arcuate pattern of epithelial iron deposition was
observed eight to 12 months postoperatively. There was no significant
clinical or topographic difference over time among the corneas of pat
ients who developed an iron line vs those who did not. Of the five pat
ients with an arcuate epithelial iron line, three underwent explantati
on of their Intrastromal Corneal Ring at 12 months according to the st
udy protocol. Iron deposition, either reverted to a Hudson-Stahli patt
ern or disappeared in each of these three patients.