References
- J. Y. Lee, D. S. Yu, J. S. Son, H. G. Cho & B. Y. Moon. (2011). The diurnal change of accommodative functions by near work. J Korean Oph Opt Soc, 16(1), 75-81.
- K. Chauhan & W. N. Charman. (1995). Single figure indices for the steady-state accommodative response. Ophthalmic Physiol Opt, 15(3), 217-221. DOI : 10.1016/0275-5408(95)90573-K
- Korean Internet & Security Agency. (2013). Survey on the internet usage, Naju : KISA.
- Korean Internet & Security Agency. (2014). Survey on the mobile internet usage, Naju : KISA.
- J. Y. Kim. (2017). The Relationship among loneliness, stress, and smartphone addiction of adolescents in the era of digitalization. Journal of Digital Convergence, 15(9), 335-343. https://doi.org/10.14400/JDC.2017.15.9.335
- S. M. Bae & Y. S. Koh. (2017). A exploratory study for influential factors of smartphone over-dependence in elder and older group. Journal of Digital Convergence, 15(7), 111-121. https://doi.org/10.14400/JDC.2017.15.7.111
- C. J. Park, J. S. Yoo & J. H. Kim. (1994). Changes of accommodative function in VDT workers in relation to rest. J Korean Oph Soc, 35(7), 790-794.
- J. C. Kim, K. H. Shun, H. C. Kim & C. H. Woo. (1991). The investigation of the changes of ocular function in VDT workers. J Korean Oph Soc, 32(12), 1137-1144.
- D. Cella, A. Peterman, S. Passik, P. Jacobsen & W. Breitbart. (1998). Progress toward guidelines for the management of fatigue. Oncology, 1(12), 369-377.
- E. Conlon, W. J. Lovegrove, E. Chekaluk & P. E. Pattison. (1999). Measuring visual discomfort. Optometry & Vision Science, 6(6), 637-666. DOI : 10.1080/135062899394885
- W. Duke-Elder. (1963). Text book of refraction. 7th ed., 47-61, St. Louise : Mosby.
- J. D. Moon, M. C. Lee & B. W. Kim. (1991). A study on the factors affecting the subjective symptoms of VDT syndrome. J Korean Preventive Med, 24(3), 373-389.
- T. Sudeli & M. Menozzi. (2003). Effect of subjective and objective workload on asthenopia at VDU workplaces. International journal of industrial ergonomics, 9(4), 441-451. DOI : 10.1080/10803548.2003
- Y. W. Seo & Y. J. Choe. (1998). Visual problems and refractive error at video display terminals. J Korean Oph Opt Soc, 3(1), 75-86.
- M. J. Smith, B. G. F. Cohen & L. W. Stammerjohn. (1981). An investigation of health complaints and job stress in video display operations, Human Factors, 23(4), 387-400. DOI : 10.1177/001872088102300402
- S. R. Boss, B. M. Calssendorff, B. G. Knave, K. G. Nyman & M. Voss. (1985) Work with video display terminal among office employees. Scan J Work Environ Health, 11(6), 475-781. https://doi.org/10.5271/sjweh.2207
- Y. Yaginuma, H. Yamada & S. Shigata. (1990). Study of the relationship between lacrimation and blink in VDT work. Ergonomics, 33(6), 799-809. DOI : 10.1080/00140139008927186
- H. J. Park & K. Y. Lee. (2002). Relationship between middle school students computer using time and dry eye. J Korean Oph Soc, 43(3), 449-454.
- J. S. Kim, K. J. Cho & J. S. Song. (2007). Influences of computer works on blink rate and ocular dryness in adolescents. J Korean Oph Soc, 48(11), 1466-1472. DOI : 10.3341/jkos.2007/48.111466
- S. H. Lee. (2011). Evaluating the influence of smart phone use on the psycho-physiological condition [master's thesis], Seoul : Konkuk University. DOI : 10.14479/jkoos.2014.19.2.217
- Y. W. Suh, K. H. Kim, S. Y. Kang, S. W. Kim, J. R. Oh, H. M. Kim & J. S. Song. (2010). The objective methods to evaluate ocular fatigue associated with computer work. J Korean Oph Soc, 51(10), 1327-1332. DOI : 10.3341/jkos.2010.51.10.1327
- J. W. Lee. (2012). The influence of uninterrupted VDT work on visual functions [master's thesis], Gumi : Kyungwoon University.
- Health Insurance Review and Assessment Service. (2015). 2015 National Health Insurance Statistical Yearbook, Wonju : Health Insurance Review and Assessment Service.