This study aims at evaluating the Erbium YAG laser phacolysis as regards the efficacy, somplications. This study included 40 patients of different ages (35-70). All patients underwent phacoemulsification using erbium YAG laser MCL-29. (Aesculap, Meditec). The patients were followed for two months. The erbium YAG laser appeared to be a safe and effective alternative technique to ultrasound phacoemulsification with few complications. It is effective for lenses with mild to moderate nuclear sclerosis. For higher grades of nuclear sclerosis, further improvements in technical and surgical parameters are required. Erbium YAG phacolysis reduces incision size, prevents corneal burns and decreases endothelial cell loss, yet it takes a longer phaco time than ultrasound phacoemulsification.