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

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Medical Devices

Background:

• Corneal opacity is a primary cause of global blindness.
• Current treatments like corneal transplantation face limitations such as donor scarcity and infection risks.
• An intraocular projection prosthesis offers a novel alternative for treating corneal diseases.

Purpose of the Study:

• To conduct a transient thermal analysis of a bionic eye model.
• To determine the maximum power output of the intraocular projection prosthesis without exceeding safety temperature limits for implantable devices.
• To ensure the device's thermal safety for potential clinical application.

Main Methods:

• Development of a 3D finite element model of the human eye.
• Incorporation of physiological factors like blood perfusion and natural convection fluid flow.
• Simulation of the intraocular projection prosthesis's thermal performance at a specific proximity to the iris.

Main Results:

• The bionic eye model demonstrated a tissue temperature rise of less than 2°C.
• This was achieved at a maximum power dissipation of 100 mW for the LED and 25 mW for the microdisplay.
• The device was positioned 1.95 mm from the iris, adhering to international safety standards.

Conclusions:

• The intraocular projection prosthesis can operate within safe thermal limits for implantable devices.
• This finding supports the potential of the bionic eye device as a viable treatment for corneal blindness.
• Further research and development can advance this technology for vision restoration.