Testing a Patient with the FA Instrument (IMAGE) Michigan Medicine - University of Michigan Caption University of Michigan Kellogg Eye Center staff test a patient's eyes for metabolic stress related to diabetes using the flavoprotein autofluorescence instrument invented at U-M. Credit University of Michigan Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.