The accumulating evidence on the myopic shift that occurs in pseudophakic children has led to an almost unanimous agreement that the IOL power should aim for a certain amount of residual hypermetropia following surgery. The residual refractive error can be corrected with spectacle glasses that are adjusted throughout childhood. The goal is to start with hypermetropia in childhood that will convert into emmetropia or mild myopia in adulthood. The axial length and keratometry readings should be measured for IOL power calculation in children. If the child is uncooperative, axial length and K-readings are taken prior to surgery under general anesthesia. The IOL power is calculated using one of the following formulae: Sanders-Retzlaff-Kraff (SRK) II, SRK-T, Holladay and Hoffer Q. It is suggested that an infant should receive 80% of the IOL power needed for emmetropia while in toddlers IOL power should correct 90% of aphakia. They also stated that IOL power calculations may be performed using axial length in children under one year of age and keratometry readings are not as crucial since these readings change rapidly from 52.00 ± 4.00 D to 42.00 ± 4.0 D in the first year of life. IOL power suggested for 21 mm is (22.00 D), 20 mm (24.00 D), 19 mm (26.00 D), 18 mm (27.00 D) and for 17 mm axial length 28.00 D. All methods of IOL power calculation leave the child with postoperative hypermetropic refractive errors and the residual refractive is corrected with glasses.