Traditional (Ultrasound) Cataract Surgery with Multifocal Lens Implant is used to treat the condition known as cataracts. In patients with cataracts, the lens of the eye becomes clouded, making it difficult for the patient to see. In cataract surgery, the doctor replaces the clouded lens with an artificial replacement. The surgery can be performed in many different manners. In one scenario, the doctor can use an ultrasonic probe to emulsify the lens, remove the fragments, and then insert the multifocal lens replacement. The multifocal lens can let the patient see clearly at near, intermediate, and far distances.