Stereopsis after bilateral implantation of Toric intraocular lenses in high myopic cataract patients with astigmatism

Purpose:To evaluate near,intermediate,distance visual acuity and stereopsis after bilateral implantation of Toric intraocular lenses(IOLs)in high myopic patients with astigmatism.Methods:Bilateral Toric or non-Toric IOL implantation(n¼40 eyes each)was performed on high myopic cataract eyes with astigmatism.Best-corrected distance visual acuity(BCDVA),uncorrected intermediate visual acuity(UCIVA),uncorrected near visual acuity(UCNVA),residual refractive astigmatism(RRA),and near,intermediate,and distance stereoacuity were measured postoperatively at 7 days,1 month,and 3 months.Results:The three-month postoperative BCDVA,UCIVA,and UCNVA of the Toric group were 0.08±0.07,0.30±0.11,and 0.23±0.14 LogMAR.All improved over the preoperative assessments(P<0.05).The RRA,UCIVA,and UCNVA were significantly better in the Toric group than the non-Toric group at all follow-up examinations(all P<0.05).At 3 months,the median near and intermediate stereoacuity of the Toric group were 100(range 40–400)and 120(range 50–400)arcsec,which were better than the non-Toric group(both P<0.05).Fine near stereopsis100 arcsec was present in 65%of the Toric patients,and 50%had good intermediate stereopsis of100 arcsec.However among non-Toric patients,only 15%and 5%achieved fine near and intermediate stereopsis.The postoperative BCDVA and best-corrected distance stereoacuity were similar in the two groups(P>0.05).Conclusions:In bilateral high myopic cataract patients with astigmatism,Toric IOLs not only improved UCIVA,UCNVA,and RRA,but also enhanced near and intermediate stereopsis acuity.