This case study explores an eye-gaze technology intervention for a young adult with severe physical and speech difficulties and visual impairments. Data were collected over a six-month intervention period encompassing measures on pupil’s occupational performance of computer activities and psychosocial impact, and interviews with the user, the parents, and the teacher on the technology acceptability. The results showed that the six-month intervention enhanced the pupil’s performance in three computer activities and led to a positive psychosocial impact. The parent and teacher described the intervention as appropriate to increase the pupil’s self-expression and interaction with others, and there was no adverse event during the study period. The pupil demonstrated motivation to use the eye-gaze technology after the intervention continuously. In conclusion, this study shows that a young adult with severe motor impairments and visual problems can benefit from using eye-gaze technology to increase participation in leisure activities, communication, and social interactions.