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Pathologic Epithelial and Anterior Corneal Nerve Morphology in Early-Stage Congenital Aniridic Keratopathy
Linköping University, Department of Clinical and Experimental Medicine, Ophthalmology. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Ophthalmology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Sinnescentrum, Department of Ophthalmology UHL/MH.
Linköping University, Department of Clinical and Experimental Medicine, Ophthalmology. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Ophthalmology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Sinnescentrum, Department of Ophthalmology UHL/MH.
2012 (English)In: Ophthalmology (Rochester, Minn.), ISSN 0161-6420, E-ISSN 1549-4713, Vol. 119, no 9, 1803-1810 p.Article in journal (Refereed) Published
Abstract [en]

Objective: To document the clinical and morphologic corneal findings in the early stages of congenital aniridic keratopathy in Swedish families. less thanbrgreater than less thanbrgreater thanDesign: Prospective, observational, comparative case series. less thanbrgreater than less thanbrgreater thanParticipants: A total of 16 eyes of 16 subjects with congenital aniridic keratopathy and a clear central cornea, and 6 eyes from 6 healthy controls (unaffected relatives). Nine of the 16 eyes with aniridia came from 5 families with a documented familial history of aniridia. less thanbrgreater than less thanbrgreater thanMethods: Detailed ophthalmic examinations included best spectacle-corrected visual acuity (BSCVA), tear film production, tear break-up time (BUT), corneal touch sensitivity, intraocular pressure measurement, ultrasound pachymetry, slit-lamp biomicroscopy, and laser scanning in vivo confocal microscopy (IVCM). less thanbrgreater than less thanbrgreater thanMain Outcome Measures: Confirmed stage of aniridic keratopathy, clinical parameters of cornea and tear film (visual acuity, sensitivity, corneal thickness, tear production, and BUT), and the morphologic status of corneal epithelium, sub-basal nerves, and limbal palisades of Vogt. less thanbrgreater than less thanbrgreater thanResults: In early-stage aniridic keratopathy, BSCVA and tear BUT were reduced relative to controls (P andlt; 0.001 for both), and corneal thickness was increased (P = 0.01). Inflammatory dendritic cells were present in the central epithelium in aniridia, with significantly increased density relative to controls (P = 0.001). Discrete focal opacities in the basal epithelial region were present in 5 of 11 aniridia cases with an otherwise clear cornea. Opacities were associated with dendritic cells and harbored structures presumed to be goblet cells. Sub-basal nerves were extremely dense in 3 aniridia cases, and a prominent whorl pattern of nerves and epithelial cells was observed in 1 case. Normal limbal palisade morphology was absent in aniridia but present in controls. less thanbrgreater than less thanbrgreater thanConclusions: Early-stage aniridic keratopathy is characterized by the development of focal opacities in the basal epithelium, altered sub-basal nerves, infiltration of the central epithelium by dendritic cells, tear film instability, and increased corneal thickness and degradation of limbal palisade architecture. These findings may help to elucidate the pathogenesis of aniridic keratopathy. less thanbrgreater than less thanbrgreater thanFinancial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.

Place, publisher, year, edition, pages
Elsevier , 2012. Vol. 119, no 9, 1803-1810 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-86136DOI: 10.1016/j.ophtha.2012.02.043ISI: 000310581200014OAI: oai:DiVA.org:liu-86136DiVA: diva2:574937
Note

Funding Agencies|European Union||Crown Princess Margaretas Foundation for the Visually Impaired||Swedish Eye Fund||Carmen and Bertil Regners Foundation||David and Beth Dahlins Foundation||King Gustav V and Queen Victorias Freemasons Foundation||County Council of Ostergotland||Association of the Blind in Ostergotland||

Available from: 2012-12-07 Created: 2012-12-07 Last updated: 2017-12-07

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Fagerholm, PerLagali, Neil

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