| The Incidence of Congenital Nasolacrimal Duct Obstruction in Korean Neonates. |
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Sang Yeul Lee, Hak Sung Chung, Hong Bok Kim, Ran Namgung, Dong Gwan Han |
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Department of Ophthalmology, Yonsei University, College of Medicine, Seoul, Korea. |
| 정상 신생아의 선천성 비루관폐쇄 발생빈도에 관한 보고 |
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이상렬(Sang Yeul Lee),정학성(Hak Sung Chung),김홍복(Hong Bok Kim),남궁란(Ran Namgung),한동관(Dong Gwan Han) |
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| Abstract |
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Congenital obstruction of the nasolacrimal drainage system is a condition frequ endy encountered by the ophthalmologist. In the development of the lacrimal pathway, the lower end of the duct is frequently separated from the cavity of the inferior meatus at birth by a membrane. In most instances, the nasolacrimal duct becomes patent during the first several weeks of life. But there are no exact data in Korean literature regarding the incidence of congenital nasolacrimal duct obstruction. The aim of our work is to get information about the incidence of congenital nasolacrimal duct obstruction in Korean neonates. Between May 1987 and September 1988, we examined 248(496 eyes) 1-to 3-day-old newborns for evaluation of the nasolacrimal duct patency by syringing. The results were as follows: 1. The incidence of congenital nasolacrimal duct obstruction was 6.25%(31 eyes) among 496 eyes of 1-to 3-day-old-new borns. 2. The rate having discharge was significantly higher in the obstructed group than in the patent group. 3. There were no significant differences between the impatency rates of the first 3 days of life, and between the impatency rates in newborns, born either via birth canal or via Cesarean section. |
| Key Words:
Congenital nasolacrimal duct obstruction |
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