Computer Controlled Eyes for Human Patient Simulator Silviu Diaconu Emad Elsamadicy Anas Othman Azreena Ahmad Shukri Group 8 Advisor : Ray Booker

Problem Statement Trauma care physicians rely on realistic medical simulators to expose them to life-threatening situations before treating on real patients ED physicians express concern that current human patient simulators inadequately simulate physiological responses of the eyes. Current simulated eyes are expensive, require high maintenance, and have limited range on simulated responses. Problem:  How to design a cost-effective realistic eye simulator that can implement a broad range of anatomical capabilities ?

Performance Criteria 1. Size: Needs to fit SimMan’s eye sockets 2. Control: Must be controlled using a computer/joystick 3. Response-Time: Should have minimal delay when reacting to user input 4. Functionality: Must perform basic eye function  Movement  Pupil dilation/constriction ( mm)

Primary Objective Develop a relatively inexpensive eye simulator for SimMan that can implement a variety of eye functionalities pertinent to emergency training scenarios.

Solution Description Using microdisplay technology we can implement 3D-graphics software to model anatomical eye features and physiological responses.

Goals Create realistic eye features by integrating 3D computer graphics with microdisplays. Develop a computer-controlled eye simulator that is esthetically pleasing Create a cheaper alternative option for eye simulators than those that are currently on the market. Simulator implements physiological responses such as pupil dilation/constriction, blinking, and eye movement

Factors Using micro-displays lowers both cost and maintenance as opposed to mechanical simulators. 3D-Studio Max offers an effective method that can increase both the quality and number of various physiological response necessary for a realistic medial scenario.

Performance Metrics Test physiological responses with basic fundoscopic procedures. Test eye functionality by using real-time simulation Survey physicians to validate performance. Determine whether or not there is a statistical difference in the number of “deaths” between SimMan with eyes and those without eyes.

Experimental Setup Micro-display Controller PC (3D Graphics Software) Joystick Controller eMagin OLED LCD OLED

Past Work  Toured Vanderbilt University Simulations and Technology facility.  Observed simulated cesarean section to understand the controls needed for our eye-simulator.  Learned to use the basic functions of 3D-studio max.

Current Work  Measuring dimensions of SimMan eyes in order to find the appropriate micro-display products available. Contacted eMagin for OLED Microdiplay systems and Faunhaufer for VCB.  Researching the various types of physiological responses that occur in the eye after particular drug applications.

Future Work  Begin to model detailed 3D images of the eye including the retina.  Order LCD screen and test the animation quality and performance.  Implement a mechanical technique to move the LCD screens by using a joystick.  Test our prototype in a medical scenario.