Abstract
Pigmentation of the posterior corneal surface results either from endothelial phagocytosis of free melanin pigment or from the presence of iris melanocytes, iris pigment epithelial cells, or pigment-containing macrophages on the posterior corneal surface. Although this is occasionally seen clinically, it is more often noted at histopathologic evaluation after operative or accidental ocular trauma. Three cases of posterior corneal pigmentation by iris melanocytes are reported. In one case, the pigmented membrane was the major cause of considerable visual impairment and was documented with clinical photographs and specular microscopy. By light and electron microscopy, all three cases were consistent with findings of posterior corneal pigmentation by iris stromal melanocytes that had acquired endothelium-like morphologic characteristics. We also consider the possible contribution of these melanocytes to posterior collagen layers of the cornea.
Citations
Jul 1, 1992·The British Journal of Ophthalmology·A D ParidaensJ L Hungerford
Oct 1, 1991·The British Journal of Ophthalmology·G E HolmströmD S Taylor
Feb 1, 1987·The British Journal of Ophthalmology·C M KirknessA D Steele
Jan 1, 1982·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·J R Wolter
Jan 15, 2008·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Zita SteiberJan Ulrik Prause
Jan 1, 1981·Journal - American Intra-Ocular Implant Society·C F Bahn, A Sugar
Dec 1, 1981·Ophthalmology·S E BloomfieldW G Harrison
Apr 1, 1983·Ophthalmology·J H YeoA Pisacano
Jun 1, 1984·Ophthalmology·C F BahnW M Bourne
Jul 1, 1984·Ophthalmology·L Moses
Jul 1, 1984·Ophthalmology·L M CoboG George
Mar 1, 1986·Ophthalmology·E AlfonsoR K Forster
Nov 18, 2014·Veterinary Ophthalmology·Nelson I PintoBrian C Gilger
Nov 1, 1982·Survey of Ophthalmology·A KampikW R Green
Nov 26, 2009·Ophthalmic Surgery, Lasers & Imaging : the Official Journal of the International Society for Imaging in the Eye·Jacek P SzaflikJerzy Szaflik
Jan 1, 1990·Eye·S J Tuft, D J Coster
Sep 24, 2013·Cornea·Liwu G ChenElona Dhrami-Gavazi
Oct 17, 1998·Eye·I G Simmons, O Stewart
Jul 1, 1986·Survey of Ophthalmology·J M KraussR F Steinert