Myasthenia Gravis (MG) is an autoimmune disorder, which may lead to paralysis and
even death if not treated on time. One of its primary symptoms is severe muscular
weakness, initially arising in the eye muscles. Testing the mobility of the eyeball can
help in early detection of MG. In this study, software was designed to analyze the ability
of the eye muscles to focus in various directions, thus estimating the MG risk. Progressive
weakness in gazing at the directions prompted by the software can reveal abnormal
fatigue of the eye muscles, which is an alert sign for MG. To assess the user’s
ability to keep gazing at a specified direction, a fuzzy algorithm was applied to images
of the user’s eyes to determine the position of the iris in relation to the sclera. The results
of the tests performed on 18 healthy volunteers and 18 volunteers in early stages
of MG confirmed the validity of the suggested software