scholarly journals The Influence of Decentration on Higher-Order Aberrations in Artisan Aphakic Intraocular Lens Implantation Eyes

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Aizhu Miao ◽  
Min Zhang ◽  
Tianhui Chen ◽  
Yi Lu
Keyword(s):  
Intraocular Lens ◽  
Case Series ◽  
Higher Order ◽  
Intraocular Lens Implantation ◽  
Retrospective Case ◽  
Higher Order Aberrations ◽  
Vision Science ◽  
Department Of Ophthalmology ◽  
Lens Implantation ◽  
The Mean

Purpose. To characterize the influence of decentration on higher-order aberrations of Artisan aphakic intraocular lens implantation eyes. Setting. Department of Ophthalmology and Vision Science, Eye and ENT Hospital of Fudan University, Shanghai, China. Design. Retrospective case series. Methods. Twenty-three eyes of 18 patients were retrospectively examined. Location of the IOL was imaged using a slit-lamp, and decentration (the distance from the center of a pupil to the geometric center of the IOL) was measured using the AutoCAD 2007 software. Ocular and internal higher-order aberrations were measured using the wavefront analyzer KR-1W (Topcon) and their correlation with decentration were analyzed. Coma, spherical, 3rd-, 4th-order, trefoil, tetrafoil aberrations, ocular, and internal higher-order aberrations were calculated for a 4.0 mm pupil diameter. Results. The mean age of patients was 33.6 ± 21.4 years (ranging from 7 to 72 years). The mean follow-up period was 28.2 ± 10.5 months (ranging from 12 to 52 months). The mean postoperative best-corrected visual acuity (BCVA) was 0.19 ± 0.19 logMAR (range −0.18–0.52). The mean decentration was 0.57 ± 0.28 mm (range 0.15–1.21 mm). There was no correlation between Artisan IOL decentration and ocular higher-order aberrations, internal higher-order aberrations, coma, spherical, 3rd-, 4th-order, trefoil, and tetrafoil aberrations, respectively. There was a positive correlation between Artisan IOL decentration and 2nd-astig aberrations when 2nd-astig aberrations were less than 0.1. Conclusions. The position of Artisan IOLs showed slight decentration and the amounts of decentration were not large enough to influence higher-order aberrations.

scholarly journals Hyperopic Shift caused by Capsule Contraction Syndrome after Microincision Foldable Intraocular Lens Implantation: case series

2018 ◽  
Author(s):  
Tae Gi Kim ◽  
Sang Woong Moon
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Refractive Error ◽  
Nd:Yag Laser ◽  
Case Series ◽  
Intraocular Lens Implantation ◽  
Lens Implantation ◽  
Hyperopic Shift ◽  
The Mean ◽  
Anterior Capsulotomy

Abstract Background: Increasing interest in microincision cataract surgery has led to the use of more flexible intraocular lens (IOL). Flexible IOL may cause more IOL deformation and refractive error when capsule contraction syndrome (CCS) occurred. In this retrospective observational case series study, the aim was to report four cases of hyperopic shift caused by CCS after phacoemulsification with microincision foldable intraocular lens implantation. Case presentation: All of four patients underwent phacoemulsification and in-the-bag implantation of an Akreos MI60 (Bausch and Lomb) IOL from 2010 to 2016 in our clinic. These patients had been diagnosed with CCS and had undergone Nd:YAG laser anterior capsulotomy. The mean age of the patients with CCS was 66.8 ± 6.7 years and the mean time for development of CCS after the cataract surgery was 9.3 ± 6.9 months. The mean spherical equivalent (SE) value at the time of the CCS diagnosis was 0.88 ± 0.91 D, which had shown a hyperopic shift compared to the SE value of − 0.91 ± 1.29 D after cataract surgery. The mean SE decreased by − 0.47 ± 1.14 D after Nd:YAG laser anterior capsulotomy. The mean age, axial length, anterior chamber depth, and preoperative SE were not significantly different between the patient with CCS and the patients without CCS. Conclusions: In the case of IOL implantation with flexible materials in microincision cataract surgery, CCS can cause a hyperopic shift. Refractive error caused by CCS can be effectively corrected by Nd:YAG laser anterior capsulotomy. Key Words: Capsule contraction syndrome, Microincision cataract surgery, Refractive change, Nd:YAG laser anterior capsulotomy, Intraocular lens

Changes in Higher-Order Aberrations After Iris-Fixated Phakic Intraocular Lens Implantation

2013 ◽  
Vol 29 (10) ◽  
pp. 693-700 ◽  
Author(s):  
Hidemasa Torii ◽  
Kazuno Negishi ◽  
Kazuhiro Watanabe ◽  
Megumi Saiki ◽  
Naoko Kato ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Higher Order ◽  
Intraocular Lens Implantation ◽  
Phakic Intraocular Lens ◽  
Higher Order Aberrations ◽  
Lens Implantation

scholarly journals Hyperopic Shift caused by Capsule Contraction Syndrome after Microincision Foldable Intraocular Lens Implantation: case series

2019 ◽  
Author(s):  
Tae Gi Kim ◽  
Sang Woong Moon
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Refractive Error ◽  
Nd:Yag Laser ◽  
Case Series ◽  
Intraocular Lens Implantation ◽  
Lens Implantation ◽  
Hyperopic Shift ◽  
The Mean ◽  
Anterior Capsulotomy

Abstract Background Increasing interest in microincision cataract surgery has led to the use of more flexible intraocular lens (IOL). Flexible IOL may cause more IOL deformation and refractive error when capsule contraction syndrome (CCS) occurred. In this retrospective observational case series study, the aim was to report four cases of hyperopic shift caused by CCS after phacoemulsification with microincision foldable intraocular lens implantation. Case presentation All of four patients underwent phacoemulsification and in-the-bag implantation of an Akreos MI60 (Bausch and Lomb) IOL from 2010 to 2016 in our clinic. These patients had been diagnosed with CCS and had undergone Nd:YAG laser anterior capsulotomy. The mean age of the patients with CCS was 66.8 ± 6.7 years and the mean time for development of CCS after the cataract surgery was 9.3 ± 6.9 months. The mean spherical equivalent (SE) value at the time of the CCS diagnosis was 0.88 ± 0.91 D, which had shown a hyperopic shift compared to the SE value of − 0.91 ± 1.29 D after cataract surgery. The mean SE decreased by − 0.47 ± 1.14 D after Nd:YAG laser anterior capsulotomy. The mean age, axial length, anterior chamber depth, and preoperative SE were not significantly different between the patient with CCS and the patients without CCS. Conclusions In the case of IOL implantation with flexible materials in microincision cataract surgery, CCS can cause a hyperopic shift. Refractive error caused by CCS can be effectively corrected by Nd:YAG laser anterior capsulotomy.

scholarly journals Effect of phacoemulsification with intraocular lens implantation in eyes with cataract and functioning filtering blebs

2013 ◽  
Vol 13 (2) ◽  
pp. 33-41
Author(s):  
Devendra Maheshwari ◽  
Rengappa Ramakrishanan ◽  
Mohideen Abdul Kader ◽  
Neelam Pawar ◽  
Ankit Gupta
Keyword(s):  
Visual Acuity ◽  
Intraocular Pressure ◽  
Intraocular Lens ◽  
Intraocular Lens Implantation ◽  
Corrected Visual Acuity ◽  
Lens Implantation ◽  
The Mean ◽  
One Year ◽  
Best Corrected Visual Acuity

Aim: To evaluate the effect of phacoemulsification with intraocular lens implantation in eyes with pre-existing trabeculectomy.Methods: This prospective single-center clinical study evaluated intraocular pressure in 60 eyes of 60 patients who underwent phacoemulsification and implantation of a foldable intraocular lens after a previous successful trabeculectomy. Patients who had a trabeculectomy more than one year prior to the study were included. Intraocular pressure, number of antiglaucoma medications, bleb appearance, and visual acuity were recorded preoperatively, and at each follow-up examination and 12 months after phacoemulsification.Results: The mean intraocular pressure before phacoemulsification was 12.42 mmHg (SD, 4.60 mmHg), which increased to 14.98 mmHg (SD, 4.18 mmHg), 14.47 mmHg (SD, 3.58 mmHg), 15.44 mmHg (SD, 3.60 mmHg), and 15.71 mmHg (SD, 3.47 mmHg) after one, three, six, and 12 months, respectively. At each follow-up visit, the mean IOP was significantly higher than the preoperative value (p < 0.001, p = 0.015, p ≤ 0.001, and p = 0.001 at month one, three, six, and 12, respectively). The mean preoperative best-corrected visual acuity was 0.98 logMAR (SD, 0.44 logMAR) and the mean postoperative best-corrected visual acuity at 12 months was 0.20 logMAR (SD, 0.21 logMAR) [p = 0.0001]. The mean preoperative number of antiglaucoma medications used was 0.57 (SD, 0.63), which increased to 0.65 (SD, 0.63 ), 0.70 (SD, 0.72 ) 0.68, (SD, 0.70), and 0.67 (SD, 0.77 ) at one, three, six, and 12 months, respectively, but there were no statistically significant differences. Bleb size decreased clinically after phacoemulsification. Nineteen of 60 eyes (32%) developed fibrosis of bleb with decreased bleb size.Conclusion: Phacoemulsification with intraocular lens implantation significantly increased intraocular pressure and increased the number of antiglaucoma medications in eyes with pre-existing functioning filtering blebs.

Cionni Ring and In-the-Bag Intraocular Lens Implantation for Subluxated Lenses: A Prospective Case Series

2012 ◽  
Vol 153 (6) ◽  
pp. 1144-1153.e1 ◽  
Author(s):  
Abhay R. Vasavada ◽  
Mamidipudi R. Praveen ◽  
Viraj A. Vasavada ◽  
Ru-Yin Yeh ◽  
Samaresh Srivastava ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Case Series ◽  
Intraocular Lens Implantation ◽  
Lens Implantation ◽  
Prospective Case Series
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