Open AccessTemperature Elevation in the Human Eye Due To Intraocular Projection Prosthesis Device
Author(s) -
Dipika Gongal,
Shashi Thakur,
A. Panse,
J. A. Stark,
ChwoMing Joseph Yu,
Craig D. Foster
Publication year - 2021
Publication title -
journal of thermal science and engineering applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.41
H-Index - 27
eISSN - 1948-5093
pISSN - 1948-5085
DOI - 10.1115/1.4050237
Subject(s) - cornea , materials science , corneal transplantation , ophthalmology , economic shortage , keratoprosthesis , medicine , biomedical engineering , optics , physics , linguistics , philosophy , government (linguistics)
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.