title: Long-term pathologic follow-up of obsolete design: Choyce Mark VIII anterior chamber intraocular lens.
abstract: We analyzed an enucleated eye that was blind and painful from a 66-year-old patient implanted with a Tennant modification of the Choyce Mark VIII anterior chamber intraocular lens (IOL) as a secondary procedure in 1978. The eye developed glaucoma, with implantation of an Ahmed valve in 2006. Gross and light microscopic analyses showed corneal decompensation and vascularization, peripheral anterior and posterior synechiae, iris thinning, significant changes in the iris pigmented layer, fibrous tissue on the anterior surface of the iris, and Soemmerring ring formation in the periphery of capsular bag remnants. In addition, there was severe attenuation of the nerve fiber layer and extensive cupping of the optic disc. The IOL surface was overall smooth and regular, without warping of the footplates, and was partially covered by clumps of various cell elements, including giant cells intermixed with pigment. This study represents the longest clinicopathologic correlation report on this IOL.
authors: John A. Moran Eye Center, University of Utah, Salt Lake City, Utah 84132, USA.
authors: Andrew
authors: A
authors: Ollerton
authors: Brian C
authors: BC
authors: Stagg
authors: Lisa
authors: L
authors: Leishman
authors: Zachary
authors: Z
authors: Bodnar
authors: Liliana
authors: L
authors: Werner
authors: Nick
authors: N
authors: Mamalis
mesh_terms: D000368:Aged; D000867:Anterior Chamber / Q000601:surgery*; D002387:Cataract Extraction; D020878:Device Removal; D015353:Eye Enucleation; D058447:Eye Pain / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008855:Microscopy, Electron, Scanning; D011474:Prosthesis Design