2)Horn JD : Status of toric intraocular lenses. Curr Opin Ophthalmol 18 : 58-61, 2007
3)Ma JJ, Tseng SS : Simple method for accurate alignment in toric phakic and aphakic intraocular lens implantation. J Cataract Refract Surg 34 :1631-1636, 2008
4)Jin H, Limberger IJ, Ehmer A et al : Impact of axis misalignment of toric intraocular lenses on refractive outcomes after cataract surgery. J Cataract Refract Surg 36 : 2061-2072, 2010