ABNORMAL TRANSIENT MYOPIA IN SYMPTOMATIC INDIVIDUALS AFTER SUSTAINED NEARWORK

被引：17
作者：
CIUFFREDA, KJ
ORDONEZ, X
机构：
[1] State University of New York, State College of Optometry, Department of Vision Sciences, New York, NY
来源：
OPTOMETRY AND VISION SCIENCE | 1995年 / 72卷 / 07期
关键词：
MYOPIA; ACCOMMODATION; NEARWORK; SYMPTOMS; BLUR;
D O I：
10.1097/00006324-199507000-00011
中图分类号：
R77 [眼科学];
学科分类号：
100212 ;
摘要：
After a sustained period of nearwork, some patients report slightly blurred distance vision for several seconds or even minutes. This presumed large and prolonged ''abnormal transient myopia'' has never been objectively documented. A Canon R-1 infrared autorefractor was used to assess distance refractive state every 2 s before and immediately after a binocular near task in three such individuals. Results showed a large post-task myopic shift, slowed baseline decay, and increased response variability as compared with that found in asymptomatic visually normal individuals. These findings suggested that this transient distance blur was related to the increased transient myopia resulting from one or more possible abnormalities related to the accommodative system.
引用
收藏
页码：506 / 510
页数：5
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共 28 条
  • [1] Lancaster W.Z., Williams E.R., New light on the theory of accommodation, with practical applications, Trans am Acad Ophthalmol Otolaryngol, 19, pp. 170-195, (1914)
  • [2] Rosenfield M., Ciuffreda K.J., Novogrodsky L., Contribution of accommodation and disparity-vergence to transient near-work-induced myopic shifts, Ophthal Physiol Opt, 12, pp. 433-436, (1992)
  • [3] Ehrlich D.L., Near vision stress: Vergence adaptation and accommodative fatigue, Ophthal Physiol Opt, 7, pp. 353-357, (1987)
  • [4] Fisher S.K., Ciuffreda K.J., Levine S., Tonic accommodation, accommodative hysteresis and refractive error, Am J Optom Physiol Opt, 64, pp. 799-809, (1987)
  • [5] Haider M., Kundi M., Weibenbock M., Worker strain related to VDU's with differently colored characters, Ergonomic Aspects of Visual Display Terminals, (1980)
  • [6] Ostberg O., Accommodation and visual fatigue in display work, Ergonomic Aspects of Visual Display Terminals, (1980)
  • [7] Owens D.A., Wolf-Kelly K., Near work, visual fatigue, and variations of oculomotor tonus, Invest Ophthalmol Vis Sei, 28, pp. 743-749, (1987)
  • [8] Tan R., O'Leary D.J., Accommodation characteristics before and after near work, Clin Exp Optom, 71, pp. 165-169, (1988)
  • [9] Hung G.K., Ciuffreda K.J., Semmlow J.L., Static vergence and accommodation: Population norms and orthoptic effects, Doc Ophthalmol, 62, pp. 165-179, (1986)
  • [10] Campbell F.W., Westheimer G., Dynamics of accommodation responses of the human eye, J Physiol (Lond), 151, pp. 285-295, (1960)
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