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황정호,권의용,조남천,Jeong Ho Hwang,Eui Yong Kweon,Nam Chun Cho 대한안과학회 2010 대한안과학회지 Vol.51 No.2
Purpose: To review the management of posterior segment metallic intraocular foreign bodies (IOFB) and to compare the use of an external approach using a large electromagnet and an internal approach using vitrectomy and its tools for their removal. Methods: A retrospective review was performed on 49 eyes of 49 patients who underwent surgical removal of metallic IOFBs with either an internal or an external approach at a single institution between January 2003 and December 2006. We divided 49 eyes into two groups based on the type of approach: 26 external (n=26) and 23 internal (n=23). Visual acuity and the presence of any complications occurring with the two approaches were the main outcome measures studied. Results: Thirty of 49 eyes (61%) showed improvements in visual acuity. When we compared patients treated with an external versus an internal approach, we found no statistically significant difference in regard to visual outcome. Preoperative vitreous hemorrhage and endophthalmitis were more common in the internal approach group. A trend toward a higher rate of reoperation was more common in the external approach group, but they were not statistically significant. Postoperative complications found to be significantly different between the two groups were the rate of postoperative endophthalmitis and retinal detachment, which were more common in the external approach group. Conclusions: Surgical removal of metallic IOFBs results in significant visual improvement regardless of the approach method. The internal approach by vitrectomy is recommended as the first choice in preoperative conditions such as severe cataracts, vitreous hemorrhage and endophthalmitis, as well as in groups at high risk for postoperative endophalmitis and retinal detachment. J Korean Ophthalmol Soc 2010;51(2):270-275
Terrestrial insect fauna of the herbaceous stratum of reservoir embankment slopes, Korea
황정호,임민영,윤종학 국립중앙과학관 2023 Journal of Asia-Pacific Biodiversity Vol.16 No.4
Herbaceous strata with a dominant plant community 50 m in size were selected from 10 reservoir embankment areas in Shinan-gun, a southwestern island region of South Korea. Terrestrial insects were sampled 100 times with quantitative sweep sampling to investigate the insect fauna and their associꠓation with flora. The survey areas were mainly dominated either by Phragmites japonica or Miscanthus sinensis plant species. A total of 1,948 individual insects representing 173 species from 64 families within 9 orders were collected. The number of species was the highest at Jaeundo while the Shannon-Wiener diversity index was the highest at Saokdo. Similarity analysis showed that the insect species composiꠓtion tended to be similar among survey sites with plant communities comprising the same dominant plant species. Species diversity was the highest in April while the number of individual insects was the highest in September. Petaphora maritima and Ochetellus glaber were the dominant and subdominant insect species, with a high frequency of occurrence at these sites. The results of this study could be applied towards biodiversity conservation and monitoring of reservoir embankment areas in the future.
산업보건 in Culture - 스포츠 분야에 '산업안전보건교육 문화 조성'을 기대하며
황정호,Hwang, Jeong-Ho 대한산업보건협회 2018 산업보건 Vol.2018 No.-
2018년 2월 9일부터 16일간 열전을 치른 평창올림픽이 25일 막을 내렸다. 강원도 평창, 정선, 강릉에서 종목별로 구분되어 치러진 이번 동계올림픽은 대회 마지막 날까지 컬링과 봅슬레이에서 메달을 추가하여 종합 7위라는 좋은 성적으로 유종의 미를 거두었다. 무엇보다 이번 올림픽은 다른 관점으로 대회를 볼 수 있는 계기를 마련해주었다는 점에서 나에게 더욱 특별했다. 바로 국민들을 감동시키고 여러 패러디 열풍을 통해 응원을 펼친 '컬링' 때문이다.