2Kelman CD. Phaco-emulsification and aspiration: a report of 500 consecutive cases. Am J Ophthalmol, 1973,75:764.
3Emery JM,Little JH. Phacoemulsification and aspiration of cataracts London:C.V. Mosby Co, 1979.46-47.
4Sugar J, Mitchelson J, Kraff M. The effect of phacoemulsification on corneal endothelial cell density. Arch Ophthalmol, 1978,96:446.
5Hayashi K, Nakao F, Hayashi F. Corneal endothelial cell loss following phacoemulsification using the small-port phaco. Ophthalmic Surg, 1994, 25 :510.