Keratometry measurements, corneal astigmatism and irregularity in a normal population: the Tehran Eye Study.
KhabazKhoob M, Hashemi H, Yazdani K, Mehravaran S, Yekta A, Fotouhi A. Keratometry measurements, corneal astigmatism and irregularity in a normal population: the Tehran Eye Study. Ophthalmic Physiol Opt. 2010 Nov; 30(6):800-5.