Ref. [1-5]

Ref. [1-5]

01. Vitale, S., Sperduto, R. D., and Ferris, F. L., 3rd (2009) Increased prevalence of myopia in the United States between 1971-1972 and 1999-2004. Arch Ophthalmol 127, 1632-1639 

02. Shih, Y. F., Chiang, T. H., and Lin, L. L. (2009) Lens thickness changes among schoolchildren in Taiwan. Invest Ophthalmol Vis Sci 50, 2637-2644 

03. Saw, S. M., Chan, Y. H., Wong, W. L., Shankar, A., Sandar, M., Aung, T., Tan, D. T., Mitchell, P., and Wong, T. Y. (2008) Prevalence and risk factors for refractive errors in the Singapore Malay Eye Survey. Ophthalmology 115, 1713-1719 

04. Dirani, M., Chan, Y. H., Gazzard, G., Hornbeak, D. M., Leo, S. W., Selvaraj, P., Zhou, B., Young, T. L., Mitchell, P., Varma, R., Wong, T. Y., and Saw, S. M. (2010) Prevalence of refractive error in Singaporean Chinese children: the strabismus, amblyopia, and refractive error in young Singaporean Children (STARS) study. Invest Ophthalmol Vis Sci 51, 1348-1355 

05. Liang, Y. B., Wong, T. Y., Sun, L. P., Tao, Q. S., Wang, J. J., Yang, X. H., Xiong, Y., Wang, N. L., and Friedman, D. S. (2009) Refractive errors in a rural Chinese adult population the Handan eye study. Ophthalmology 116, 2119-2127