Late development of localized band keratopathy in relation to a Molteno tube.

We report a case in which, 6.5 years postoperatively, localized band keratopathy developed in relation to a Molteno tube. At no stage had direct contact been noted between the tip of the tube and the corneal endothelium. The mechanisms of development of corneal opacities in relation to anterior chamber drainage tubes are discussed and the implications for the placement of such tubes are examined.