Browse > Article

A Study on Diurnal Variations of Accommodation  

Lee, Jeong-Yun (Department of Visual Optics, Kyungwoon University)
Yu, Dong-Sik (Department of Visual Optics, Kyungwoon University)
Son, Jeong-Sik (Department of Visual Optics, Kyungwoon University)
Moon, Byeong-Yeon (Department of Visual Optics, Kyungwoon University)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.15, no.1, 2010 , pp. 73-78 More about this Journal
Abstract
Purpose: The purpose of this study was to examine diurnal variation of accommodation on people whose age are between 35 and 50 years old with frequent alternation of accommodation at period 1 (8:00-10:00), period 2(13:00-15:00) and period 3 (18:00-20:00). Methods: All \04 subjects were separated to nonpresbyopia and incipient presbyopia. Tests were done for amplitude of accommodation, accommodative facility and relative amplitude of accommodation. Results: Both nonpresbyopia and incipient presbyopia had the highest amplitude of accommodation in oculus dexter, oculus sinister and oculus uterque at period 2. In addition, the incipient presbyopia showed the statistical significance of daily change. The nonpresbyopia had the most accommodative facility at period 3 and incipient presbyopia had the most accommodative facility at period 2. Their daily variations were statistically significant. Both nonpresbyopia and incipient presbyopia had the most negative relative accommodation of daily change at period I. Both of them had the most positive relative accommodation at period 2. Conclusions: The incipient presbyopia had the highest amplitude of accommodation, accommodative facility. and positive relative accommodation (except the negative relative accommodation) at period 2.
Keywords
Incipient presbyopia; Amplitude of accommodation; Accommodative facility; Relative amplitude of accommodation; Near-work; Diurnal variation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Charman W. N., "The path to presbyopia: straight or crooked?", Ophthalmic Physiol. Opt., 9(4):424-430(1989).   DOI   ScienceOn
2 Blystone P. A., "Relationship between age and presbyopic addition using a sample of 3645 examinations from a single private practice", J. Am. Optom. Assoc., 70(8):505-508 (1999).
3 Eskridge J. B., "Clinical objective assessment of the accommodative response", J. Am. Optom. Assoc., 60(4):272-275(1989).
4 Milder B. and Rubin M. L., "The fine art of prescribing glasses without making a spectacle of yourself', 2nd Ed. Triad publishing Co., Florida, pp. 52-53(1991).
5 Eskridge J. B. and John B., "Clinical procedures in optometry", Lippincott Williams & Wilkins, pp. 66-71(1991).
6 김재도, "임상검안과 안기능 이상 처방", 신광출판사, pp. 96, 182-185, 201-205(2004).
7 Alpern M. and Larson B., "Vergence and accommodation, IV. Effect of luminance quantity on the AC/A", Am. J. Ophthalmol., 49:1140-1149(1960).
8 Cacho P., Garcia A., Lara F., and Segui M. M., "Diagnostic signs of accommodative in-sufficiency", Optom. Vis. Sci., 79(9):614-620(2002).   DOI   ScienceOn
9 Liu J. S., Lee M., Jang J., Ciuffreda K. J., Wong J. H., Grisham D., and Stark L., "Objective assessment of accommodation Orthoptics: 1. Dynamic, insufficiency", Am. J. Optom. & Physiol. Opt., 56:285-294(1971).
10 신진아, "안기능 검사 이론과 실습", 2판, 한미의학, pp. 197-198(2007).
11 김재도, "임상검안과 안기능이상 처방", 신광출판사, pp. 123(2004).
12 Milder B. and Rubin M. L., "The fine art of prescribing glasses without making a spectacle of yourself", 2nd Ed. Triad publishing Co., Florida, pp. 38-39(1991).
13 김시욱, 최억, "한국인 노안의 연령에 따른 근용 첨가도", 대한 안과학회지, 23(3):621-625(1982).
14 Donders F. C., "On the anomalies of accommodation and refraction of the eye", The New Sydenham Society, London, pp. 206-211(1864).
15 Southall J. P. C., "Introduction to physiologic optics", Oxford University Press, Oxford, pp. 88(1937).
16 Duane A., "Normal values of the accommodation at all ages", JAMA, 59(12):1010-1013(1912).
17 Hofstetter H. W., "A comparison of Duane's and Donder's tables of the amplitude of accommodation", Am. J. Optom. Arch. Am. Acad. Optom., 21(9):345-362(1944).   DOI
18 김현목, 손정식, 김인수, 조현국, "직업별 초기노안자의 조절력 비교", 한국안광학회지, 13(4):135-139(2008).
19 박상철, 성아영, 김대현, 김덕훈, "근시안의 일일 시력변동에 관한 연구", 한국안광학회지, 10(1):35-40(2004).