RESUMEN
AIM: The clinical outcomes of unilateral single-focal intraocular len(SIOL), contralateral implanted multifocal IOL(MIOL)and the SIOL was implanted in binoculus were compared.METHODS: There were 60 cases with 120 eyes age-related cataract patients in January 2019 to January 2021 underwent phacoemulsification and IOL implantation in Chengdu Aier Eye Hospital. The SIOL has been implanted in the dominant eyes, all patients were divided into three groups according to the types of IOL implanted in the contralateral non-dominant eyes, among them, there were 36 eyes of 18 cases in group A with non-dominant eyes implanted MIOL(SBL-3); 38 eyes of 19 cases in group B were implanted MIOL(SN6AD1)in non-dominant eyes. SIOL was implanted in all 46 eyes of 23 cases of control group. After operation at 3mo,the results of binocular vision and visual quality of the three groups were evaluated and compared.RESULTS: After operationat 3mo, there was no difference in the uncorrected distance vision and corrected distance vision, uncorrected medium vision and corrected near vision among the three groups(P<0.05).The uncorrected near visual acuity and corrected intermediate visual acuity of both eyes in groups A and B were significantly improved in both groups compared with the control group(P<0.05). The scores of Catquest 9SF-CN scale showed that the quality of life of patients in group A and group B(11.11±1.323, 11.89±1.883 scores)was better than that in the control group(14.65±1.722 scores, both P<0.05). The rate of lens removal in group A, B and control group were 88.9%, 84.2% and 39.1%, respectively, and the rate of lens removal in group A was significantly higher than that in the control group(P<0.0167).CONCLUSION: Dominant eye implantation of SIOL in patients with cataract and contralateral non-dominant eye implantation of MIOL(SBL-3/SN6AD1)can obtain better full-range visual acuity than binoculus, less postoperative adverse visual symptoms, and higher patient disengagement rate and satisfaction.
RESUMEN
@#AIM: To evaluate the centration of the SBL-3 multifocal intraocular lens, the size of the distant and near power zone in the pupil area and the area of the visual axis using Itrace visual function analyzer. <p>METHODS: Retrospective case study. From January 2018 to January 2019, 51 eyes of 36 patients underwent phacoemulsification cataract combined with regional refraction multifocal intraocular lens implantation at Beijing Aier-Intech Eye Hospital were enrolled. The centration, visual axis, angle α, angle Kappa and the orientation of the intraocular lens measured by Itrace were used to calculate the position of the visual axis in the intraocular lens and the changes in the proportions of the distant and near power zones in the pupil area. <p>RESULTS: The centration(R)of intraocular lens is 0.217±0.09mm. The distribution of the visual axis in the intraocular lens is 0.217±0.09mm. The visual axis is evenly distributed in the distant and near power zones. There was no statistical significance between the two groups with postoperative visual acuity ≥0.8 and <0.8(<i>P</i>>0.05). The size of the angle Kappa is 0.187±0.079mm. The displacement of angle Kappa on the y-axis is 0.10±0.06mm. There was no statistical significance between the changes in the pupil size of distant and near power zones in the pupil area caused by the deviation of the pupil and the postoperative visual acuity ≥0.8 and <0.8(<i>P</i>>0.05). <p>CONCLUSION: The intraocular lens centration and axial data measured by the Itrace visual function analyzer can be used to estimate the area where the visual axis is located and the size of the distant and near power zones in the pupil area, thereby assisting in evaluating the postoperative visual quality of the regional refraction multifocal intraocular lens implanted after cataract surgery.
RESUMEN
·AIM: To compare the visual quality after different multifocal lens (MIOL) implantation in cataract patients. ·METHODS: Totally 78 cases (78 eyes) of cataract patients who receiving phacoemulsification and implantation of different MIOL were enrolled from February 2016 to June 2017 in our hospital. According to the different type of implanted MIOL, the 78 cases (78 eyes) were divided Group A,B and C,each group was 26 cases (26 eyes). Patients in the Group A were implanted regional refraction MIOL SBL-3; patients in the Group B implanted step progressive diffraction MIOL SN6AD1;patients in the Group C implanted all - optical plane diffraction MIOL Tecnis ZMB00. The visual acuity, contrast sensitivity,defocus testing,contrast visual acuity and satisfaction of visual quality were compared in 3 groups at postoperative 3mo. · RESULTS: There was no statistically significant difference in postoperative adverse reactions between the three groups (P>0.05). There was statistical difference in uncorrected intermediate visual acuity, uncorrected near visual acuity, distance - corrected intermediate visual acuity and distance- corrected near visual acuity in 3 groups (P < 0. 05), and those in the Group C were significantly worse than those of Group A and B (P<0.05). There was statistical difference in contrast sensitivity at four spatial frequencies (3,6,12,18c/d) in light and light glare and three spatial frequencies (3, 6, 12c/d) in dark and dark glare in 3 groups (P<0.05), and those in the Group A were significantly better than those of Group B and C (P<0.05). According to the defocus testing of 3 groups,the visual acuity at -1.5D,-2.0D and-2. 5D in Group A and B was significantly higher than Group C (P<0. 05). There was statistical difference in contrast visual acuity at 20% and 9% of contrast ratio in 3 groups (P<0.05),and those in Group A were significantly better than Group B and C(P<0.05). There was statistical difference in visual quality satisfaction in 3 groups (P<0.05), and that in the Group A was significantly better than that of Group B and C (P<0.05). ·CONCLUSION:The region refraction MIOL SBL-3 not only could provide better distant, intermediate and near visual acuity, but also could provide better contrast sensitivity and contrast visual acuity, thereby greatly increase visual quality satisfaction.