This document summarizes research applying the fuzzy c-means (FCM) technique to iris eye segmentation. FCM is used to segment 25 iris images from the iris region of interest. The accuracy of segmentation is evaluated using misclassification ratio (MCR) calculations at different FCM levels. Results show segmentation improves with increasing FCM levels, with blue irises showing clearer segmentation than other colors. MCR values decrease from 28.25% at FCM level 1 to 6.11% at FCM level 3 for one image, demonstrating increased segmentation accuracy with multiple applications of FCM.