Analysis Of Aberrations Of Patients After Phacoemulsification And Implanted Different Intraocular Lenses

Objectives: To compare aberrations of patients in whom different intraocular lenses (IOLs) were implanted in order to improve optical designs of IOLs with better retinal image quality.Methods: 131 patients (151 eyes) were selected randomly who accepted phacoemulsification and were implanted IOLs. They were divided into three groups according to different IOL. In group A, the 5.5mm optical diameter IOL were implanted into 64 eyes of 58 patients; in group B, the 6.0mm optical diameter IOL were implanted into 47 eyes of 43 patients; in group C, the 6.3mm optical diameter IOL were implanted into 40 eyes of 38 patients. The aberrations of all these patients after surgery were checked and analyzed with wavelight analyzer.Results: 1) For 4.0 mm pupil, the average RMSh values of these groups were as follow: 0.16±0.05um (group A); 0.13±0.04um (group B); 0.13±0.05um (group C). For 5.0 mm pupil, the average RMSh values of these groups were as follow: 0.29±0.05um (group A); 0.18±0.04um (group B); 0.20±0.06um (group C). For 6.0 mm pupil, the average RMSh values of these groups were as follow: 0.36±0.10um (group A); 0.28±0.06um (group B); 0.28±0.05um (group C). For 7.0 mm pupil, the average RMSh values of these groups were as follow: 0.59±0.21um (group A); 0.39±0.07um (group B); 0.38±0.11um (group C). 2) For 5.0 mm pupil, the average RMSh values were significantly different between group A and the other two groups (p<0.05), but the difference between group B and Group C was not significant (p>0.05).Conclusions: 1) the larger the pupil is, the higher the RMSh values is in the eyes with IOL. 2) For 5.0mm pupil, the average RMSh value of patients implanted 5.5 mm diameter IOLs was significant higher than that of patients implanted 6.0 mm and 6.3 mm diameter IOLs.