At 2 years (52 eyes). In 35 phakic eyes assessed at an interval of 2 years after surgery improvement in vision over the preoperative level was maintained in 9, there was no change in 15, and a deterioration was noted in 11, while in 17 aphakic eyes improvement had been maintained in 10, there was no change in 5, and a deterioration had occurred in 2
(Table 5).
At 3 years or longer (29 eyes). Of 20 phakic eyes in which follow-up data were available 3 or more years after surgery 6 showed an improvement over the preoperative vision, 10 were unchanged, and 4 showed a deterioration, while in 9 aphakic eyes 2 were improved, 5 were unchanged, and 2 had deteriorated (Table 6). A separate assessment of those
eyes for which follow-up information was available 4 years or more after surgery was not undertaken because of the small number (6 eyes).