Temperature Elevation in the Human Eye Due To Intraocular Projection Prosthesis Device.

Autor:	Gongal D; Department of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, IL 60607., Thakur S; Surgical Planner II, Arthrex Inc., Naples, FL 34119., Panse A; Department of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, IL 60607., Stark JA; Department of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, IL 60607., Yu CQ; Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, CA., Foster CD; Computational Mechanics Laboratory, Department of Civil and Materials Engineering, University of Illinois at Chicago, Chicago, IL 60607.
Jazyk:	angličtina
Zdroj:	Journal of thermal science and engineering applications [J Therm Sci Eng Appl] 2021 Dec; Vol. 13 (6). Date of Electronic Publication: 2021 Apr 19.
DOI:	10.1115/1.4050237
Abstrakt:	Corneal opacity is a leading cause of blindness worldwide. Corneal transplantation and keratoprosthesis can restore vision but have limitations due to the shortage of donor corneas and complications due to infection. A proposed alternative treatment using an intraocular projection prosthesis device can treat corneal disease. In this study, we perform a transient thermal analysis of the bionic eye model to determine the power the device can produce without elevating the eye tissue temperature above the 2°C limit imposed by the international standard for implantable devices. A 3D finite element model, including blood perfusion and natural convection fluid flow of the eye, was created. The device was placed 1.95 mm from the iris, which experienced less than 2°C rise in the tissue temperature at a maximum power dissipation of LED at 100 mW and microdisplay at 25 mW. Competing Interests: Conflict of Interest There are no conflicts of interest.
Databáze:	MEDLINE
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