AIM:To evaluate the clinical efficacy of phacoemulsification combined with intraocular lens(IOL)implantation for senile cataract patients with corneal astigmatism.

METHODS:Using the random number table method were enrolled 64 cases(84 eyes)with senile cataract at Eye Center of our hospital, which were divided into the astigmatism IOL group(42 eyes of 33 cases)and the spherical IOL group(42 eyes of 31 cases). The astigmatism IOL group was treated with phacoemulsification with intraocular lens implantation, and the spherical IOL group was treated with conventional temporal clarity cornea incision phacoemulsification and spherical intraocular lens implantation combined with limbal relaxing incisions on steep axial position. Distribution of vision at 3mo pre- and post-operation, astigmatism, the changes of spherical and cylindrical lens indicators(curvature, axial, non-mydriatic refraction spherical, non-mydriatic refraction cylindrical, astigmatism axial)were observed between two groups.

RESULTS:Uncorrected visual acuity of the astigmatism IOL group and the spherical IOL group were follow up to 3mo post-operation, the visual acuity was significantly improved(P<0.05)than that in pre-operation groups. Compared with the spherical IOL group of uncorrected visual acuity after operation, distribution of vision in the astigmatism IOL group was superior than that in the spherical IOL group(Z=-2.172,P=0.030<0.05). Compared with pre-operation groups, the corneal astigmatism was decreased in the astigmatism IOL group and the spherical IOL group at 3mo post-opearation, with statistically significant differences(P<0.05). Non-mydriatic refraction spherical and non-mydriatic refraction cylindrical were decreased after operation(P<0.05), astigmatism axial had no statistically significant differences compared with pre-operation(P>0.05). Non-mydriatic refraction spherical and non-mydriatic refraction cylindrical of the astigmatism IOL group were significant lower than than in the spherical IOL group at 3mo post-operation(P<0.05).

CONCLUSION:Phacoemulsification combined with intraocular lens implantation for senile cataract with corneal astigmatism have a good clinical effect.