Analysis of a large sample of donor corneas continues to show age but not sex as a predictor of decreased ECD. African American and Asian ethnicities tend to have slightly higher ECD than that of white donors, whereas Hispanic donors have slightly lower ECD; however, ethnicity was not a predictor of suitability for transplantation. Clinical significance of these findings is yet to be determined.
Preplaced landmarks yielded good IOR and IOA in quantitative assessment of AS structures that were NTD and non-CB-related or less removed from the reference. CB-related NTD measurements varied greatly in IOR and IOA, indicating protocol modifications or CB qualitative assessments needed to improve accuracy. Variability in TD measurements increased the further removed from the reference, which supports implementation of a reliable reference landmark to minimize variation.
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