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[Comparison of contrast sensitivity and wavefront analysis after implantation of AcrySof IQ aspherical intraocular
1Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China. qiangson@sh163.net
Objective:
To determine vision quality when testing two acrylic intraocular lenses, AcrySof IQ and AcrySof Natural, after routine cataract extraction and IOL implantation.
Method:
Prospective, randomized, double-masked study that 260 eyes of patients who underwent cataract extraction and IOL implantation was performed. Patients were randomly divided into 2 groups: AcrySof IQ or AcrySof Natural. One week, one and three month postoperative evaluations included contrast sensitivity and wavefront analysis. The independent-samples T test was used. P < 0.05 was considered statistically significant.
Result:
The AcrySof IQ group has significantly higher and middle spatial frequency of contrast sensitivity. The difference in low spatial frequency was getting significant along with time. Patients with AcrySof IQ had a reduction in total high-order aberrations and spherical aberration. There were no difference in coma between two groups.
Conclusion:
The use of aspheric acrylic AcrySof IQ IOL may improve the quality of vision as a result of the reduction of contrast sensitivity and spherical aberration.
