Estimation accuracy of surgically induced astigmatism on the cornea when neglecting the posterior corneal surface measurement

Cheng LS, Tsai CY, Tsai RJ, Liou SW, Ho JD, Acta Ophthalmol, August 2011, 89(5):417-22. doi: 10.1111/j.1755-3768.2009.01732.x. Epub 2009 Oct 30.