| Objective:To evaluate visual function and visual quality objectively of cataract patients by visual field analysis after different intraocular lens implanted.Methods:According to the type of intraocular lens, we divided subject who accept phacoemulsification and intraocular lens implantation into two groups of A(26eyes)and B(20eyes). The patients from group A were implanted Akreos-AO aspheric lens while the patients from group B were implanted Akreos Spherical lens. In addition,36eyes from age-matched normal population were selected as the normal control group (group C). Every patients were followed up with visual acuity, visual field at one month after surgery. Visual fields were divided into three concentric zones for analysis. Mean deviation (MD), pattern standard deviation(PSD) and mean sensitivity (MS) of the different regions(central, paracentral and peripherald zones) between the three groups were compared. The data were analyzed by the SPSS19.0software package’s with independent-samples T Test and one-way ANOVA.Results:1) Postoperative unaided visual acuity in each group were>4.8. The best corrected visual acuity(BCVA) of group A, B is4.89±0.10and4.90±0.93respectively. There were no significant difference among the groups (P>0.05).2) The MS value of52points of the visual field showed significant statistical difference before and after surgery. The MS value of52points of group A and B showed significant statistical difference between postoperative and preoperative visual field(P<0.05), while compared with group C, MS of the group B has no significant difference (P>0.05).3) There was no significant difference about MS D-value of zone Ⅰ&Ⅱ between group A and B (P>0.05), however zone III has significant statistical difference(P<0.05). Moreover, there were significant statistical differences between MS values of three concentric zones of group B and C (P<0.05), while no significant difference between group A and C.Conclusions:1) After intraocular lens implantation, the visual acuity and BCVA improved significantly. The patients implanted with Akreos-AO aspheric intraocular lens had higher sensitivity than those who were implanted with Akreos spherical intraocular lens.2) Akreos spherical intraocular lens have relatively significant effect on global indices such as MS on visual field testing. However, the visual quality of Akreos-AO aspheric intraocular lens is much better and close to normal. Objective:To evaluate visual function and visual quality objectively of cataract with glaucoma patients by visual field analysis after different intraocular lens implanted.Methods:26glaucoma and cataract patients with28eyes (15PACG&13POAG) who accept phacoemulsification and intraocular lens implantation with Akreos-AO aspheric lens were chosen in this study, including18cases of early stage,22of middle and16advanced glaucoma eyes. Every patients were followed up with visual acuity, visual field at one month after surgery. Visual fields were divided into three concentric zones for analysis. Mean deviation (MD), pattern standard deviation(PSD) and mean sensitivity (MS) of the different regions(central, paracentral and peripherald zones) between the three groups were compared. In addition, AGIS scores of visual fields were compared before and after surgery. The data were analyzed by the SPSS19.0software package’s with independent-samples T Test and one-way ANOVA.Results:The MS value of group A, B and C before surgery are20.21±3.93dB,14.13±4.48dB and5.40±3.42dB, while they increased to25.62±3.26dB,18.99±4.56dB and8.40±3.77dB after surgery separately (P<0.05) and AGIS scores range from4.22±1.39,10.73±4.61and18.25±1.75to1.44±1.88,6.91±3.86and14.63±1.77respectively (P<0.05). There was no significant difference about MS D-value of three zones for group A, but significant statistical difference about MS D-value of zone Ⅰ&Ⅲ between postoperative and preoperative visual field for group B (P<0.05), however zone Ⅰ&Ⅱ and Ⅱ&Ⅲ have no significant difference(P>0.05). Moreover, it shows significant statistical difference about MS D-value of zone Ⅰ&Ⅱ and Ⅰ&Ⅲ for group C (P<0.05), although zone Ⅱ&Ⅲ have no significant difference(P>0.05). Conclusions:Visual acuity and mean sensitivity of glaucoma with cataract patients improved after phacoemulsification and intraocular lens implantation, however the surgery cannot reduce the glaucomatous localized defects of visual field. Cataract has an impact on the visual field of glaucoma patients because the AGIS scores decreased after surgery. Staging glaucomatous visual field defects relates to cataract extently. MS D-value of peripherald zone is superior to central for middle and advanced glaucoma eyes. Regardless of the stage of glaucoma, Phaco+IOL can reduce the visual defects at least in part and improve the quality of vision obviously. Some absolute scotoma of advanced glaucomatous visual field can change into relative scotoma after surgrey. The patient may well achieve substantial improvement in postoperative visual acuity. |
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