This study has the aim to investigate the college students’ eye strain caused by their eye movements. In this study, we used a developed questionnaire comprised of 88 questions including eye strain. The data was collected from February 4, 2012 until February 22, 2012. The participants were 273 undergraduates who were resident in Jeolla and Gyeonggi provinces of Korea. The collected data was analyzed by SPSS 19.0. The results of this study as follows. 67% of participants used optical aids such as eye glasses and contact lenses. For them, the initial age of using the optical aids was 14.27. They experienced sensitivity (61.2%), dryness (58.6%), itching (44.6%) of their eyes. They purchased contact lenses at the optician's shop (94.4%), and they used contact lenses with the object of both correction and beautification (43.4%). The initial age of wearing contact lenses was 18.38. The mean score of eye strain was 16.36. There were significant differences in gender (t=-3.171, p=.002), eyesight testing time (F=6.380, p=.002), use of the optical aids (t=-4.096, p<.001), use of the contact lenses (t=-5.988, p<.001), eye disease (t=5.903, p<.001), sitting posture (F=-6.477, p<.001), side effects of wearing contact lenses (t=3.502, p=.001), daily use of contact lenses (t=-2.921, p=004), and weekly use of contact lenses (t=-2.273, p=.024) causing the eye strain. This study confirmed that the participants wearing contact lenses feel more eye strain than otherwise. Therefore, it is necessary to develop nursing interventions and educational program to help manage contact lenses and eye health.