Ophthalmology Most common site of obstruction in chronic dacryocystitis in adults is: A At upper end of nasolacrimal duct B At lower end of nasolacrimal duct C In the lacrimal sac D In the common canaliculus 💡 Explanation Most common site of obstruction in chronic dacryocystitis in adults is: ✓ Correct Answer: A. At upper end of nasolacrimal duct