Ophthalmological Laser
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Sistema eletrônico de controle para laser amarelo de aplicação oftalmológica com regime de operação contínuo e micro-pulsado / Electronic control system to yellow laser for ophthalmic applications and continuous or micro second pulse regime
Recently, scientists have proposed a new technique for treating diseases related to the human retina, which is based on retinal laser discharges using pulse sequence around of 200 \ mü\ s, replacing the conventional treatment using long pulses around of 300 ms. The main advantage of the new technique is the conservation (without cell death) of the area expo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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2. Laser self-Raman dobrado intracavidade de alta potência CW operante na região amarela do espectro eletromagnético de aplicações oftalmológicas / High power intracavity doubled CW self-Raman laser operating in the yellow range of electromagnetic spectra of ophthalmological applications
Este trabalho tem por objetivo o desenvolvimento e otimização de uma cavidade laser self-Raman de aplicações oftalmológicas. A cavidade laser é do tipo estado sólido bombeada longitudinalmente por um diodo laser infravermelho. A cavidade é dita self-Raman pois um cristal Raman intracavidade faz o papel de meio ativo e deslocador Raman. Esse tipo de c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2011
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3. Estudo in-vitro dos efeitos do laser de Er,Cr:YSGG em tecido ósseo por espectroscopia ATR-FTIR / Study in vitro of Er,Cr:YSGG laser effects in bone tissue by ATR-FTIR spectroscopy
Laser proves to be, more and more, an effective tool for helping health professionals, being intensively used in ophthalmological and odontological procedures. In particular, high-density, infrared emitting lasers have great potential in cutting mineralized biological hard tissues, given their high absorption by hydroxyapatite and water, these tissues main c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/04/2010
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4. "Análise comparativa das medidas de espessura da camada de fibras nervosas da retina de pacientes com atrofia em banda do nervo óptico e de indivíduos normais através da tomografia de coerência óptica e da polarimetria a laser" / A comparative analysis of the retinal nerve fiber layer thickness measurements in patients with band atrophy of the optic nerve and in normal controls using optical coherence tomography and scanning laser polarimetry
Most diseases that affect the optic pathways present clinically with loss of one or more visual functions.When optic pathway injuries involve the anterior visual pathways they may cause loss of the retinal nerve fiber layer (RNFL) and "band atrophy" (BA). The purpose of this study was therefore to compare the ability of the optical coherence tomography (OCT)
Publicado em: 2006
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5. Failure of many ophthalmologists to use lasers safely.
In 1990, after the detection of impairment of colour discrimination in laser operators, the College of Ophthalmologists recommended safety guidelines for the use of lasers. We measured the effectiveness of these guidelines and their impact on ophthalmological practice in the United Kingdom. Previously, in ophthalmologists not following the guidelines, there
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6. Histology of the lens in the Weill-Marchesani syndrome.
The Weill-Marchesani syndrome is a rare systemic connective tissue disease characterised by small stature, brachydactyly, ectopia lentis, and spherophakia. Three siblings with typical manifestations of this syndrome were reported. The ophthalmological findings in all these cases were spherophakia, severe myopia, a shallow anterior chamber, and narrow angle g