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실험적으로 유발한 병아리의 굴절이상에 조도가 미치는 영향
Daihan angwa haghoi jabji, 2000-10, Vol.41 (10), p.2090-2098
[Peer Reviewed Journal]
COPYRIGHT(C) KYOBO BOOK CENTRE ALL RIGHTS RESERVED ;ISSN: 0378-6471
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Title:
실험적으로 유발한 병아리의 굴절이상에 조도가 미치는 영향
Author:
조은희
;
Eun Hee Cho
;
진용한
;
Yong Han Jin
Subjects:
Emmetropization
;
Illumination
;
Refractive errors
Is Part Of:
Daihan angwa haghoi jabji, 2000-10, Vol.41 (10), p.2090-2098
Description:
실험적 근시를 만드는데 이용되는 translucent goggle로 한눈의 굴절이상을 유발하되 조도와 광원을 달리하여 근시의 발생에 대한 조명의 영향에 대해서 알아보고자 하였다. 부화 1일이 된 동종의 병아리 40마리를 대상으로 우안에 돔모양의 translucent goggle을 부착하고 각군당 10마리씩 다른 조도와 조명으로 사육하였고 좌안은 대조군으로 하였다. 백열전구를 이용하여 1군은 500 lux 이하, 2군은 1000 lux, 3군은 2000 lux 이상으로 하였으며 4군은 삼파장전구(1000 lux)를 이용하였다. 일령 21일째에 안구를 적출한 후 검영굴절검사를 시행, 안축장, 각막직경과 적도부직경를 계측하였다. 유발된 굴절이상은 평균 -11.94 D으로 대조안의 평균 +2.95 D에 비해 유의하게 근시가 발생하였다(p<0.001). 안구크기를 대조군과 비교시 안축장 0.87 mm(P<0.001), 각막직경 0.24mm (P<0.5), 적도부직경 1.03 mm(P<0.001)정도씩 유의하게 컸다. 전체 우안의 굴절이상은 적도부직경(Pearson`s Correlation coefficient-0.37,P<0.05), 안축장(Pearson`s Correlation coefficient -0.67,P<0.01)과 유의한 상관관계를 보였으며 적도부 직경보다는 안축장과의 관계가 더 밀접하였다. 조도의 차이가 있을 때는 우안에서 1000 lux 군이 2000 lux 군과의 비교시에 유의하였다(p<0.05).좌안에서는 각군의 의미있는 굴절이상의 차이는 없었다. 광원을 달리한 경우에는 양안 모두 의미있는 차이는 없었으며 우안에서는 삼파장등이 5.83 D의 근시를 더 유발하는 경향을 보였다(한안지 41:2090~2098,2000). The effects of different luminance levels and light sources to emmetropization in the chick were investigaed. One-day-old, forty chicks were reared under condition of unilateral visual deprivation with translucent goggle. Under normal light cycles(12-h light/12-h dark), three kinds of luminance levels and two light sources(incandescent lamp vs fluorescent lamp) were used. Three weeks after hatching, refractive error, axial length, equator diameter and corneal diameter of the eyes were measured. The deprived eyes exhibited severe myopia of -11.94 diopters(p<0.001) and refractive changes were mainly related with axial elongations. Refractive error of 1000 lux group was less myopic than 2000 lux group(p<0.05). The fellow eyes didn`t show significant difference between groups. No significant changes were noted between different light source groups. The experiment suggests that different degrees of illumination under normal light/dark environment can cause different refractive changes; More studies will be needed to show that the ideal luminance condition for emmetropization in our enviroment be present(J Korean Ophthalmol Soc 41:2090~2098,2000).
Publisher:
대한안과학회
Language:
Korean
Identifier:
ISSN: 0378-6471
Source:
KoreaMed Open Access
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