This procedure is indicated for patients with perforations of the eardrum. An ear surgeon in Delhi might also perform an additional procedure called a cortical mastoidectomy to clean out infection or disease in the mastoid bone. The aim of the surgery is to heal the perforation in the eardrum and provide the patient with a dry ear and functional hearing. The success rate of this surgery varies between 85-90%. Post-operative care includes keeping the ear dry and avoiding any activities that might strain the repaired eardrum.