A 60 year old man presented with watering from his left eye since 1 year. Syringing revealed a patent drainage system. Rest of the ocular examination was normal. A provisional diagnosis of lacrimal pump failure was made. Confirmations of the diagnosis would be by:: (A) Dacryoscintigraphy, (B) Dacryocystography, (C) Pressure syringing, (D) Canaliculus irrigation test
Answer is A. Ans. Dacryoscintigraphy