AIM:To evaluate the clinical gains 1 year after implantation of Tetraflex accommodative intraocular lens(IOLs).

METHODS:This study comprised 23 patients(23 eyes)with cataract and undergone phacoemulsification and implantation of a Tetraflex accommodative IOL. At the 12-month follow-up visit, uncorrected distance visual acuity(UCDVA)and uncorrected near visual acuity(UCNVA)were measured to determine the efficacy of the IOL. Incidence of spectacle independence, patients' satisfaction and presence of visual disturbances were investigated. In addition, anterior and posterior capsule opacification were assessed. Twenty-six patients(26 eyes)with implantation of monofocal IOLs(SN60AT, Alcon)were recruited as control group.

RESULTS:At the 12-month follow-up visit, the patients in Tetraflex accommodative IOLs group had better UCDVA and UCNVA than those in control group, but no significant difference was found(P>0.05). There were 34.7% patients of Tetraflex accommodative IOLs group and 26.9% patients of control group achieving total spectacle independence, and no significant difference was found(χ²=0.355, P=0.551). Patients' satisfaction rates with two groups did not differ significantly too(χ²=2.367, P=0.124). Anterior and posterior capsule opacification were present, respectively, in 34.8% and 7.7% of patients(χ²=3.972, P=0.046). Two cases of accommodative IOLs displacement were discovered(χ²=0.659, P=0.417). No visual disturbances were mentioned in both groups.

CONCLUSION: In the long run, compared with monofocal IOLs, Tetraflex accommodative IOLs can not provide efficient uncorrected visual acuity and had higher incidence and degree of anterior and posterior capsule opacification. Patients implanted have lower satisfaction rate due to poor accommodative ability versus expensive material. So, accommodative IOL should be implanted prudently, especially to the patients with high risk factors for capsule fibrosis.