Specular Microscopy
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Incorporation of Fluorescent Dyes in Electrospun Chitosan/Poly(ethylene oxide)
Polymeric films have been increasingly investigated due to the ease of miniaturization and integration in several sensor devices. Films obtained from the electrospinning technique have a controlled diameter and homogeneity, and substances can be incorporated into the polymeric network. Electrospinning fiber of chitosan (Ch) and poly(ethylene oxide) (PEO) was
J. Braz. Chem. Soc.. Publicado em: 2021-05
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2. The effect of intracameral epinephrine on pupil size during phacoemulsification and its postoperative effect on specular findings and macular thickness
ABSTRACT Objective: To evaluate pupillary size and vital signs following intraoperative intracameral adrenaline during phacoemulsification and postoperative effect of on co specular microscopy findings and macular thickness by OCT. Methods: A prospective interventional study carried out from December 2014 to December 2015 on 90 eyes. They were divided rand
Rev. bras.oftalmol.. Publicado em: 2016-12
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3. NANOCRISTAIS DE CELULOSE A PARTIR DE CELULOSE BACTERIANA
Bacterial cellulose produced from Gluconacetobacter xilinus was used to produce cellulose nanocrystals by sulfuric acid hydrolysis. Hydrolysis was performed with 64% sulfuric acid at 50 ºC with the hydrolysis time ranging between 5 and 90 min. The production of nanocrystals was observed to have size distributions that were dependent on hydrolysis times up t
Quím. Nova. Publicado em: 2015-11
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4. Análise endotelial da córnea em pacientes submetidos à cirurgia corneal pela técnica de anel intraestromal / Análise endotelial da córnea em pacientes submetidos à cirurgia corneal pela técnica de anel intraestromal / Corneal endothelial analysis in patients undergoing corneal surgery technique for ring intrastromal / Corneal endothelial analysis in patients undergoing corneal surgery technique for ring intrastromal
A tese tem por objetivo avaliar o endotélio corneal por meio de microscopia especular, de pacientes portadores de ceratocone, antes e após a cirurgia corneal pela técnica de anel intraestromal, utilizando o implante Cornealring. Cento e dois olhos de 67 pacientes, com idade entre 12 e 45 anos (com média 27,31 8,15 anos), sendo 30 do sexo feminino e 37 do
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/06/2012
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5. Avaliação do endotélio da córnea de galinhas (Gallus gallus domesticus) em diferentes faixas etárias utilizando a microscopia especular
O endotélio corneano é uma monocamada de células poligonais localizadas na face posterior da córnea e é essencial para a manutenção da transparência corneana. Não foram encontradas referências na literatura a respeito dos parâmetros morfológicos e morfométricos do endotélio da córnea de galinhas, apesar destes animais serem amplamente utilizad
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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6. Estudo da reprodutibilidade do exame de microscopia especular de córnea em amostras com diferentes números de células / Reproducibility study of the corneal specular microscope in samples with different number of cells
INTRODUÇÃO: O endotélio corneal exerce papel primordial para a fisiologia da córnea. Seus dados morfológicos gerados pelo microscópio especular (MEC) como densidade endotelial (DE), área celular média (ACM), coeficiente de variação (CV) e porcentagem de células hexagonais (HEX) são importantes para avaliar sua vitalidade. Para interpretar estes d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2011
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7. Porcelain stoneware tile surface analysis through atomic force microscopy / Análise da superfície de porcelanatos polidos por meio de microscopia de força atômica
The porcelain stoneware tile is a ceramic product that has presented a great increase on production, since it had excellent technical properties and raised aesthetic performance. To improve its aesthetic characteristics, it is submitted to a polishing process that influences a lot of interested properties of the products, due mainly to changes observed on th
Publicado em: 2010
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8. Estudo prospectivo comparativo dos ciclos de ultra-som 14% e 67% do WhiteStar na cirurgia de catarata por facoemulsificação com a técnica Nuclear Preslice
Purpose: To compare the 14% and 67% duty cycles of ultrasound power, continuous module, pulse manual control in the Sovereign phacoemulsification system with WhiteStar power modulation for cataract surgery. The phacoemulsification Nuclear Preslice technique was used to evaluate ultrasound effective time, ultrasound percentage, infusion volume amount and endo
Publicado em: 2007
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9. Uso do programa "Cells Analyser" no estudo comparativo entre imagens do endotélio de córnea obtidas por microscopia especular
Purpose: To describe differences among number of cells, evaluated endothelial area and relative error comparing endothelial samples from one endothelial image with endothelial samples obtained from guidance of a specific software, with number of cells and images as many as necessary. Methods: A transversal study was performed, comparing the endothelial sampl
Publicado em: 2007
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10. Non-invasive assessment of the donor corneal endothelium using ocular redox fluorometry.
AIMS: To investigate the usefulness of ocular redox fluorometry for evaluating donor corneal endothelial viability. METHODS: Corneas from 42 recipients of penetrating keratoplasty and four donor corneas were examined by ocular redox fluorometry. Autofluorescence from reduced pyridine nucleotides (PN) and oxidised flavoproteins (Fp) of the human corneal endot
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11. Distinguishing features of the iridocorneal endothelial syndrome and posterior polymorphous dystrophy: value of endothelial specular microscopy.
The literature suggests that posterior polymorphous dystrophy (PPD) may show features such as iridocorneal adhesions, glassy membranes, and pupillary ectropion which are typically ascribed to the iridocorneal endothelial (ICE) syndrome. This complicates diagnosis. PPD, unlike ICE, is familial, and ICE, unlike PPD, is usually progressive and frequently compli
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12. Identifying anterior segment crystals.
A series of 22 patients with crystals in the anterior segment of the eye was examined by specular microscopy. Of 10 patients with hypermature cataract and hyperrefringent bodies in the anterior chamber cholesterol crystals were identified in four patients and in six of the 10 in whom aspirate was obtained cholesterol crystals were demonstrated in three, two