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International Journal of Latest Research in Science and Technology

DOI:10.29111/ijlrst   ISRA Impact Factor:3.35

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DESIGN AND DEVELOPMENT OF AN ULTRAPORTABLE CORNEAL TOPOGRAPHER FOR SMARTPHONES AS A LOW COST NEW TOOL FOR PREVENTING BLINDNESS CAUSED BY KERATOCONUS

Research Paper Open Access

International Journal of Latest Research in Science and Technology Vol.4 Issue 3, pp 72-76,Year 2015

DESIGN AND DEVELOPMENT OF AN ULTRAPORTABLE CORNEAL TOPOGRAPHER FOR SMARTPHONES AS A LOW COST NEW TOOL FOR PREVENTING BLINDNESS CAUSED BY KERATOCONUS

Francisco Irochima Pinheiro, Anthony Andrey Ramalho Diniz,Evandro Pereira de Souza,Eug?nio Pacelly Brand?o de Ara?jo,Heliana Bezerra Soares

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Received : 20 June 2015; Accepted : 25 June 2015 ; Published : 30 June 2015

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Abstract

The high cost of devices used for preventing eye diseases that cause blindness still represent a limiting factor for those preventive strategies of public health around the World. Before this scenario, it can be clearly observed that the development of a new ultraportable device, light, with a low cost and using the functionality of processing and communicating of a smartphone for screening patients, represents a unique innovation to combat blindness. From this context, this research aimed at designing and developing a functional prototype of a new ultraportable corneal topographer for smartphones as a tool to combat blindness by keratoconus. This prototype was designed and developed by the CIÊNCIA ILUSTRADA Studio®, a startup company, incubated by the INOVA Metrópole at the Federal University of Rio Grande do Norte (UFRN). The hardware was designed by using the CorelDRAW X6, and its 3D modelling used the Pro Engineer Wildfire 5.0 software. The hardware printing was performed through the 3D Dimension Elite STRATASYS printer, and the printed circuit board was made by using the ProtoMat S62 machine. The application was developed using the Xcode 5 program. Its final calibration was performed applying stainless steel spheres with known radius. The inventor’s exclusive rights over the intellectual property for the creation of the device were assured by a patent application. At the end, it was developed a low cost device that can be coupled to a smartphone, and an application running under the IOS platform to process acquired images. After calibrating the set, it allowed the acquisition, processing and analysis of Placid rings, projected over the surface of the examined cornea, providing images, maps, indexes and other ways of measuring. It was made available a new ultraportable corneal topographer, with low cost, and able to work as a mass screening tool for corneal diseases, such as keratoconus.

Key Words   
Cornea, Keratoconus, Corneal topography of keratoconus, Image processing.

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References
  1. Vazirani J, Basu S. Keratoconus: current perspectives. Clin Ophthalmol. 2013;7:2019-30.
  2. Pearson A, Soneji B, Sarvananthan N. Does ethnic origin influence the incidence or severity of keratoconus? Eye. 2000;14: 625–28.
  3. Moreira, Luciane Bugmann et al. Psychological and social aspects of patients with keratoconus. Arq Bras Oftalmol. 2007;70(2):317-22.
  4. Alves VL, Alves MR, Lane ST. The diagnostic communication of keratoconus and its influence on the social representation that the patient has of his/her illness. Arq Bras Oftalmol. 2007;70(5):790-6.
  5. Jankov II, Mirko R et al. Ultra B2 – Corneal Cross-linking for the treatment of Keratoconus: preliminary results. Arq Bras Oftalmol. 2008;71(6):813-18.
  6. Derakhshan A, Shandiz JH, Ahadi M, Daneshvar R, Esmaily H. Short-term Outcomes of Collagen Crosslinking for Early Keratoconus. J Ophthalmic Vis Res. 2011;6(3):155-9.
  7. Eye Banking Statistical Report, Eye Bank Association of America Website, 2011, http://www.restoresight.org/.
  8. Calix Netto MJ, Giustina ED, Ramos GZ, Peccini RF, Sobrinho M, de Souza LB. Principais indicações de transplante penetrante de córnea em um serviço de referência no interior de São Paulo (Sorocaba - SP, Brasil). Arq Bras Oftalmol. 2006;69(5):661-4.
  9. Flores VGC, Dias HLR, Castro RS. Penetrating keratoplasty indications in “Hospital das Clínicas-UNICAMP”. Arq Bras Oftalmol. 2007;70(3): 505-08.
  10. Davidson AE, Hayes S, Hardcastle AJ, Tuft SJ. The pathogenesis of keratoconus. 2014;28(2):189-95.
  11. Liu DD, Wakil J, Carbonari K, Abbott G, inventors. Handheld corneal topography system. United States Patent US 6152565 A. 2000 Nov 28.
  12. Carvalho LA. A hand-held in vivo corneal topography system. Rev Bras Eng Biomed. 2006;22:105-113.
  13. Carvalho LA, Stefani M, Romão AC, Carvalho LAV, Castro JC, Tonissi AS et al. Videokeratoscopes for dioptric power measurement during surgery. J Cataract Refract Surg. 2002;28:2006-16.
  14. http://aplicacao.saude.gov.br/saude/transplante/%C3%81rea_Especializada/relatorios_estatisticos/transplantes-realizados.
  15. Koo TS, Finkelstein E, Tan D, Mehta JS. Incremental cost-utility analysis of deep anterior lamellar keratoplasty compared with penetrating keratoplasty for the treatment of keratoconus. Am J Ophthalmol. 2011;152(1):40-7.
  16. Rebenitsch RL, Kymes SM, Walline JJ, Gordon MO. The lifetime economic burden of keratoconus: a decision analysis using a Markov model. Am J Ophthalmol. 2011;151(5):768–73.
To cite this article

Francisco Irochima Pinheiro, Anthony Andrey Ramalho Diniz,Evandro Pereira de Souza,Eug?nio Pacelly Brand?o de Ara?jo,Heliana Bezerra Soares , " Design And Development Of An Ultraportable Corneal Topographer For Smartphones As A Low Cost New Tool For Preventing Blindness Caused By Keratoconus ", International Journal of Latest Research in Science and Technology . Vol. 4, Issue 3, pp 72-76 , 2015

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