Objective:To evaluate the clinical efficacy after implantation of the 1-CU accommodating intraocular lens and Tetraflex accommodating intraocular lens in cataract patients.Methods:77 age-related cataract patients(80 eyes) were divided into two groups:1-CU group included 38 patients(40 eyes)

and Tetraflex group included 39 patients(40 eyes).All the patients accepted phacoemulsification and IOL implantation.Patients were examined for the uncorrected and corrected distant visual acuity

uncorrected near visual acuity

and the distance corrected near visual acuity at 1 week

1 month

and 3 months after the surgery

and the amplitude of accommodation by 2 different methods(the dynamic retinoscopy method and near point method)at 1 week

1 month

and 3 months after the surgery.Results:There were no significant differences of the corrected near visual acuity at 1 week

1 month

and 3 months after the surgery between two groups(P>0.05)

but the corrected near visual acuity became better as time went on.The uncorrected near visual acuity and the distance corrected near visual acuity became worse at 3 months after surgery(P<0.05).Both groups had good distance corrected near visual acuity

and there were no significant differences of the distance corrected near visual acuity between the two groups(P>0.05).The uncorrected distant visual acuity at 1 week

1 month

and 3 months after the surgery of 1-CU group was significantly better than that of Tetraflex group(P<0.05).The uncorrected neat visual acuity at 1 week

1 month

and 3 months after the surgery of Tetraflex group were significantly better than that of 1-CU group(P<0.05).There were no significant differences of amplitude of accommodation between the two groups(P>0.05)

but both the amplitude of accommodation became worse at 3 months after surgery.Conclusion:Both two IOL can provide good distance corrected near visual acuity.1-CU group have better uncorrected distant visual acuity

and Tetraflex group have better uncorrected neat visual acuity.Both two IOL can offer good amplitude of accommodation and improve the visual performance.But its long-term effect remains to be observed.