PubMed · 16826787
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
L R Nikolaeva, E V Chentsova. [Limbic cellular insufficiency].. https://pubmed.ncbi.nlm.nih.gov/16826787/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
BACKGROUND: Deposits in various layers of the cornea might result from long-term medical therapy, photorefractive surgery, and longterm use of contact lenses or corneal dystrophies. METHODS: A 46-year-old woman was referred to our department with the suspected diagnosis of posterior polymorphous dystrophy. Slit-lamp biomicroscopy revealed bilateral small-sized deposits in the posterior part of the cornea. In vivo confocal microscopy was performed to evaluate these deposits in detail. RESULTS: In vivo confocal microscopy of the cornea identified hyperreflec-tive "dot-like" structures in the deep stromal layer and anterior to the endothelial cell layer. The morphology and number of keratocytes of the posterior stroma and of endothelial cells appeared normal. CONCLUSIONS: In vivo confocal microscopy is a very useful tool to analyze and visualize pre-endothelial deposits. Because there is no family history of corneal disease, the exact origin of the pre-endothelial deposits in our case remains unclear.
Explore the source record for details and available documents.
PURPOSE: To examine the changing trends in penetrating keratoplasties (PKs) performed in the United States. DESIGN: Retrospective review. METHODS: Review of Eye Bank Association of America (EBAA) data on corneal tissue distribution in the United States from 1980 to 2004. Data analysis was retrospective. United States population census data were obtained and used for population-adjusted calculations. A series of Poisson regression models were calculated looking at the temporal trends over time. MAIN OUTCOME MEASURES: The estimated yearly percent change and P values were calculated using Poisson regression models. RESULTS: The total number of corneas distributed for PKs from EBAA member eye banks have steadily increased since 1980. In 1990, the international and domestic distribution data were separated. The total number of PKs performed from EBAA-supplied tissue has continued to rise since 1990; however, the total number of PKs performed in the United States has steadily declined and when population-adjusted rates are examined, the rate of decline is more dramatic. CONCLUSION: Although both absolute numbers and age-adjusted numbers of PKs have declined recently, the population-adjusted rates have dropped more significantly.