Your daughter has esotropia, which should be operated if the deviation persists despite her glasses, if prescribed to her. The surgery is done on the medial recti muscles and is done under general anaesthesia for this age group. At our Institute (AIIMS, New Delhi) the cost in the Private ward is about Rs 6000/ and just about Rs 1000/ in the General ward. We follow up first after a week, then one month and then as per the need.