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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.
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@#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.
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@#AIM: To observe the visual quality after implantation of regional refractive multifocal intraocular lens(MIOL)SBL-3. <p>METHODS: A retrospective and controlled study. Fifty-seven cataract patients(68 eyes)in our hospital from September 2019 to July 2020 were enrolled. Totally 33 cases(36 eyes)received regional refractive MIOL SBL-3(SBL-3 group), while 24 cases(32 eyes)received aspheric single focal intraocular lens(SIOL)ZCB00(ZCB00 group). Uncorrected and corrected distance, middle and near visual acuity, defocus curve, OPDⅢ objective visual quality, the quality of vision(QoV)questionnaire, patient satisfaction and spectacle independence were evaluated 3mo postoperatively.<p>RESULTS: No significant differences were found between the SBL-3 group and the ZCB00 group in terms of LogMAR value of corrected and uncorrected distance visual acuity(UDVA)at 3mo after the operation(0.13±0.09 <i> vs</i> 0.10±0.08, 0.06±0.06 <i>vs</i> 0.08±0.08, all <i>P</i>>0.05)and the UDVA was significantly improved compared with that before the operation(<i>P</i><0.05). Corrected and uncorrected intermediate and near visual acuity were significantly better for the SBL-3 group than the ZCB00 group(0.10±0.14 <i>vs </i>0.27±0.10, 0.05±0.16 <i>vs </i>0.35±0.17, 0.11±0.14 <i>vs </i>0.26±0.11, 0.03±0.17 <i>vs </i>0.35±0.17, all <i>P</i><0.05). Concerning the comparison of contrast sensitivity, the ZCB00 group was better than SBL-3 group at any spatial frequency evaluated and the differences were significant(all <i>P</i><0.05). Statistically significant differences between groups were observed in intraocular total aberrations, high-order aberrations, coma and Trefoil presenting significantly higher values in the eyes of the SBL-3 group than in the ZCB00 group(<i>P</i><0.05). The average Strehl ratio value was smaller in the ZCB00 group and the difference was statistically significant(<i>P</i><0.05). There were 1 patient who had glare, 1 patient reported halo, 4 patients complained distance blur in the SBL-3 group at 3mo after the surgery. 82% and 88% were completely satisfied in the SBL-3 group and ZCB00 group, respectively. There was no statistically significant difference in satisfaction between the groups. SBL-3 group had a higher percentage of spectacle independence and the difference was significant(94% <i>vs </i>67%, <i>P</i><0.05).<p>CONCLUSION:The regional refractive MIOL SBL-3 provided good range of vision for near, intermediate, and distance. Although few vision phenomena were reported, it resulted in an excellent level of overall patient satisfaction and freedom from spectacles.
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@#AIM:To observe the clinical application effect of regional refraction intraocular lens SBL-3 in patients with age-related cataract.<p>METHODS: Totally 90 patients(90 eyes)with age-related cataract diagnosed and treated in our hospital from February 2016 to December 2017 were selected as the study object, and they were randomly divided into control group and observation group, each group respectively included 45 cases(45 eyes). The control group were treated with single focus intraocular lens implantation, the observation group were treated with regional refraction intraocular lens SBL-3. Then the naked vision, VF-14 scale and corneal endothelial cells situation before and after the operation, contrast sensitivity after the operation of two groups were compared.<p>RESULTS: The naked vision, VF-14 scale and corneal endothelial cells of two groups before the operation were compared,the differences had no statistical significance(all <i>P</i>>0.05). After 12wk operation, the naked vision and VF-14 scale of observation group were better than those of control group, and contrast sensitivity of light and dark light were all lower than those of control group, the differences had statistical significance(all <i>P</i><0.05), while the corneal endothelial cells, contrast sensitivity of light glare and dark glare of two groups were compared, the differences had no statistical significance(all <i>P</i>>0.05).<p>CONCLUSION: The clinical application effect of regional refraction intraocular lens SBL-3 in the patients with age-related cataract is better which has positive improvement effect for the visual quality, and the bad influence for the cornea is small, so its clinical application value is higher.
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Objective To compare the sensitivity of regional refraction multifocal intraocular lens implantation with other methods. Methods A total of 78 patients with simple cataract treated by visual acuity in our hospital from February 2016 to June 2017 were selected as subjects.The patients were divided into SBL-3 group (26 cases),SN6AD1 group (26 cases) and ZMB00 group (26 cases) according to the different intraocular lens.The contrast sensitivity value of patients in 3 groups under clear light(85 cd/m2),dark light(3 cd/m2),clear and glare light(45 Lux),dark and glare light(28 Lux) with different spatial frequencies (3,6,12,18 c/d) by the United States CSV-1000E contrast sensitivity tester after surgery.Results In terms of sensitivity index as clear light,dark light,clear and glare light,and dark and glare,the SBL-3 group were better than those of ZMB00 group and SN6AD1 group,the difference was significant(P<0.05);there were no significant differences between ZMB00 group and SN6AD1 group of each index sensitivity(P>0.05).Conclusion The postoperative sensi-tivity of refractive multifocal intraocular lens implantation of SBL-3 is significantly better than the apodized diffractive multifocal intraocular lens implantation of SN6AD1 and alll optical diffractive multifocal intraocular lens implantation of ZMB00,which is worthy of widely use for simple cataract.
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·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.
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@#AIM: To observe the clinical efficacy and safety of regional refractive multifocal intraocular lens SBL-3. <p>METHODS: Eighty-five senile cataract patients(130 eyes)who underwent phacoemulsification and intraocular lens implantation in our hospital were divided into two groups according to the difference of implanted intraocular lens: patients with regional refractive multifocal intraocular lens(MIOL)42 example(65 eyes)as an observation group, 43 patients(65 eyes)of a single-focus aspheric intraocular lens were used as a control group. Three months after operation, the indicators were: uncorrected distance visual acuity(UCDVA), uncorrected intermediate visual acuity(UCIVA), uncorrected near visual acuity(UCNVA), and spherical equivalent power(SE). The naked eye defocus curve was measured and the patient's subjective visual quality was investigated by questionnaire, including the rate glasses removal, visual interference symptoms and satisfaction. <p>RESULTS: At 3mo after operation, UCDVA was significantly improved in both groups compared with preoperative, and the difference was statistically significant(<i>P</i><0.01). However, there was no significant difference between the two groups(<i>P</i>>0.05), while UCIVA and UCNVA in the observation group were significantly better than the control group, the difference was statistically significant(<i>P</i><0.01). At 3mo after operation, the difference of computerized optometry spherical equivalent power(SE)of the two groups was statistically significant(<i>P</i><0.01). At 3mo after operation, the naked eye defocus curve of the observation group was stable in the range of +0.50 to -3.00D, the LogMAR visual acuity was below 0.301, and the curve began to rise slowly after -3.50D; the control group showed trough between ±0.5D, both ends are rising rapidly. At 3mo postoperatively, the proportion of patients with visual interference symptoms in the observation group(4/42)was not significantly different from that in the control group(2/43)(<i>P</i>=0.433). The glasses removal rate of the observation group was 97.6%(41/42), control group was 18.6%(8/43), the difference was statistically significant(<i>χ</i><sup>2</sup>=4.318, <i>P</i>=0.038). In the observation group, the single eye distance satisfaction was 92.3%, and the control group was 93.8%. The difference was not statistically significant(<i>P</i>=1.000). The observation group had a single eye near fullness of 98.5%(64/65)and the control group was 16.9%(11/65), the difference was statistically significant(<i>χ</i><sup>2</sup>=88.526, <i>P</i><0.01). <p>CONCLUSION: The regional refraction MIOL can provide good near-intermediate-distance and full-distance uncorrected visual acuity. It can meet the needs of the patients at daily, distance-middle distance-near use. Postoperative visual interference symptoms were fewer and patient satisfaction was higher.