Abstract:AIM: To investigate the effect of Toric intraocular lens(IOL)on the treatment of cataract with corneal astigmatism and its effect on visual function.
METHODS: The clinical data of patients with cataract and corneal astigmatism after phacoemulsification in our hospital from August 2013 to August 2016 in our hospital were retrospectively analyzed. The patients were divided into spherical IOL group and Toric group according to the difference of their implanted IOL. The treatment satisfaction of the two groups was observed, and the difference of visual acuity, diopter, optic function and complications between the two groups were compared.
RESULTS: The visual acuity and total astigmatism of the two groups before treatment had no difference(P>0.05). At 3mo after treatment, the visual acuity and total astigmatism of patients in the Toric IOL group were better than those of the spherical IOL group, the differences were statistically different(P<0.05). At 1 and 3mo after operation, the axial rotation of the Toric IOL group was lower than that of the IOL group. There was no difference between the two groups in visual function before operation(P>0.05). After treatment, the BCVA, area under the log contrast sensitivity function(AULCSF), contrast sensitivity maxium(Smax)and cut-off spatial frequency(CutSF)of the patients in the Toric group were lower than those of the spherical IOL group at the end of the treatment, the difference was statistically significant(P<0.05). Two groups of patients were no endophthalmitis, secondary glaucoma, macular edema and iridocyclitis complications; no significant difference between the two groups on patients satisfaction(χ2=0.002, P=0.964).
CONCLUSION: Toric IOL has a better therapeutic effect on patients with cataract and corneal astigmatism. It can improve the visual acuity and optic function in patients with cataract.
