References
- 1. Noda S, Hayasaka S, Setogawa T. Congenital nasolacrimal duct obstruction in Japanese infants: its incidence and treatment with massage. J Pediatr Ophthalmol Strabismus. 1991; 28:20-2.
- 2. Hick JF, Block D, Ilstrup DM. A controlled study of silver nitrate prophylaxis and the incidence of nasolacrimal duct obstruction. J Pediatr Ophthalmol Strabismus. 1985; 22:92-3.
- 3. Macewen CJ, Young JDH. Epiphora during first year of life. Eye. 1991; 5:596-600.10.1038/eye.1991.103
- 4. Dalgleish R. Incidence of idiopathic acquired obstructions in the lacrimal drainage apparatus. Br J Ophthalmol. 1964; 48:373-6.
- 5. Woog JJ. The incidence of symptomatic acquired lacrimal outflow obstruction among residents of Olmsted County, Minnesota, 1976-2000 (an American Ophthalmological Society Thesis). Trans Am Ophthalmol Soc. 2007; 105:649-66.