• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
https://doi.org/10.11606/T.5.2022.tde-22092022-161730
Document
Author
Full name
Rafael Scherer
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2022
Supervisor
Committee
José Junior, Newton Kara (President)
Preti, Rony Carlos
Jorge, Priscilla de Almeida
Pena, Camila Ribeiro Koch
Title in Portuguese
Avaliação da eficácia de um dispositivo portátil de baixo custo para triagem de catarata clinicamente significante
Keywords in Portuguese
Acesso ao diagnóstico
Catarata
Dispositivo móvel
Tele monitoramento
Triagem
Abstract in Portuguese
A Catarata é a segunda maior causa de cegueira no mundo. No Brasil, existem dificuldades no acesso ao diagnóstico e ao tratamento da catarata, devido, principalmente, à problemas financeiros e logísticos. Os métodos atuais de diagnóstico da catarata envolvem a presença do médico oftalmologista. Com a finalidade de facilitar o acesso da população necessitada ao diagnóstico da catarata, foi desenvolvido um dispositivo portátil de baixo custo para análise fotográfica automatizada do cristalino humano, que não precisa da presença do oftalmologista. O presente estudo foi desenhado para identificação do componente nuclear da catarata. A proposta deste estudo é avaliar a eficácia da técnica de análise fotográfica automatizada, quando comparado ao exame ocular presencial com o oftalmologista, utilizando a lâmpada de fenda. RESULTADOS: A acurácia do equipamento foi de 87,5% (IC 74,7-95,3% para p<0,05) com especificidade de 89,2% (IC 74,6-96,9% para p<0,05). CONCLUSÃO: O equipamento apresenta eficácia aceitável para a triagem de catarata nuclear. Futuros estudos estão sendo desenhados e realizados para avaliar a eficácia desse dispositivo para identificação de outros tipos de opacidade do cristalino, assim como, associações com outras formas de opacidade de estruturas intraoculares
Title in English
Evaluation of the effectiveness of a low-cost handheld device for screening for clinically significant cataracts
Keywords in English
Access to diagnosis
Cataract
Computers handheld
Mass screening
Tele monitoring
Abstract in English
Cataracts are the second leading cause of blindness in the world. In Brazil, it's hard to access the diagnosis and treatment of cataracts, mainly due to financial and logistical problems. Current methods of diagnosing cataracts involve the presence of the ophthalmologist. To facilitate access to the diagnosis of cataracts, we developed an analysis technique of eye photography using a Portable Device, which does not require the presence of an ophthalmologist. The purpose of this study is to evaluate the effectiveness of the automated photographic analysis, when compared to face-toface eye examination with the ophthalmologist, using the slit lamp. RESULTS: The accuracy of the equipment was 87.5% (CI 74.7-95.3% for p<0.05) with a specificity of 89.2% (CI 74.6-96.9% for p<0 .05), sensitivity and positive predictive value need to be reassessed in future research for a more assertive measure. CONCLUSION: The equipment has acceptable efficacy for screening for nuclear cataracts, and further research is necessary for its application in specific population subgroups and even other cataract subtypes
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
RafaelScherer.pdf (5.84 Mbytes)
Publishing Date
2022-09-23
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.