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DOI: 10.1590/0004-282X20150178
Corneal confocal microscopy in a healthy Brazilian sample
Microscopia confocal em córneas de brasileiros saudáveisABSTRACT
ObjectiveThis study aims to evaluate the characteristics of the corneal sub-basal plexus by performing in vivo confocal microscopy of healthy Brazilians to provide reference values for the Brazilian population.
MethodThis study is an observational, cross-sectional, descriptive study comparing corneas from 55 healthy Brazilian individuals across the age span of 20-70 years.
RESULTSThe average number of fibers was 5.35 ± 1.36, fiber density was 33.4 ± 8.5 fibers per field, and the mean number of Langerhans cells was 5.13 ± 8.10. A correlation between the average number of fibers and age showed an inverse relationship between the number and density of fibers and age for women (p < 0.05). In the multivariate analysis, each annual increase of age showed an average increase of 1.017 (95%CI: 1.008 to 1.026) in the number of Langerhans cells, adjusting for sex and thickness.
ConclusionCompared to other samples, this Brazilian population showed a higher average number of fibers, though further studies with a larger sample should be performed.
RESUMO
ObjetivoEste estudo tem como objetivo avaliar as características morfológicas do plexo sub-basal da córnea por microscopia confocal in vivo com indivíduos brasileiros saudáveis para fornecer uma referência para a população brasileira.
MétodoEste trabalho é um estudo observacional, descritivo, transversal comparativo com microscopia confocal de córnea a partir de 55 indivíduos brasileiros saudáveis na faixa etária de 70 ± 20 anos de idade.
ResultadosNúmero médio de fibras foi 5,35 ± 1,36, a densidade foi de 33,4 ± 8,5 fibras por campo e de células de Langerhans foi 5,13 ± 8,10. Uma correlação entre o número médio de fibras e da idade dos indivíduos mostrou uma relação inversa entre o número e densidade de fibras, e idade para as mulheres, (p < 0,05). Na análise multivariada, cada aumento anual de idade apresentou um aumento médio de 1,017 (IC95%: 1,008-1,026) no número de células de Langerhans, ajustado para sexo e espessura.
ConclusãoEm comparação com outras amostras, esta população brasileira apresentou um maior número médio de fibras embora estudos com número maior de amostras necessitem ser realizados.
Publication History
Received: 01 March 2015
Accepted: 16 July 2015
Article published online:
06 September 2023
© 2015. Academia Brasileira de Neurologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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