Associations between anterior segment parameters and rotational stability of a plate-haptic toric intraocular lens

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Yunqian Yao ◽  
Jiaqi Meng ◽  
Wenwen He ◽  
Keke Zhang ◽  
Ling Wei ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Anterior Segment ◽  
Rotational Stability ◽  
Toric Intraocular Lens ◽  
Anterior Segment Parameters

Clinical outcomes and rotational stability of a 4-haptic toric intraocular lens in myopic eyes

2014 ◽  
Vol 40 (9) ◽  
pp. 1479-1487 ◽  
Author(s):  
Rita Mencucci ◽  
Eleonora Favuzza ◽  
Francesca Guerra ◽  
Giovanni Giacomelli ◽  
Ugo Menchini
Keyword(s):  
Clinical Outcomes ◽  
Intraocular Lens ◽  
Rotational Stability ◽  
Toric Intraocular Lens

Visual Performance and Rotational Stability of a Multifocal Toric Intraocular Lens

2016 ◽  
Vol 32 (7) ◽  
pp. 444-450 ◽  
Author(s):  
Eduardo F. Marques ◽  
Tiago B. Ferreira ◽  
Pedro Simões
Keyword(s):  
Intraocular Lens ◽  
Visual Performance ◽  
Rotational Stability ◽  
Toric Intraocular Lens

Effect of Capsular Tension Ring Implantation on Postoperative Rotational Stability of a Toric Intraocular Lens

2020 ◽  
Vol 36 (3) ◽  
pp. 186-192 ◽  
Author(s):  
Magdaléna Vokrojová ◽  
Lenka Havlíčková ◽  
Markéta Brožková ◽  
Zuzana Hlinomazová
Keyword(s):  
Intraocular Lens ◽  
Rotational Stability ◽  
Toric Intraocular Lens ◽  
Capsular Tension Ring

Anterior capsule coverage and rotational stability of an acrylic toric intraocular lens

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Koh Sasaki ◽  
Shuichiro Eguchi ◽  
Akira Miyata ◽  
Tomohisa Nishimura ◽  
Kazunori Miyata ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Rotational Stability ◽  
Anterior Capsule ◽  
Toric Intraocular Lens

scholarly journals Evaluating Rotational Stability of an Extended Depth of Focus Toric Intraocular Lens Using a Slit Lamp and Image-Based Analysis

2020 ◽  
Vol Volume 14 ◽  
pp. 2405-2410
Author(s):  
Helga P Sandoval ◽  
Stephen Lane ◽  
Stephen Slade ◽  
Eric D Donnenfeld ◽  
Richard Potvin ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Rotational Stability ◽  
Slit Lamp ◽  
Depth Of Focus ◽  
Toric Intraocular Lens ◽  
Extended Depth Of Focus

Morphologic Changes in the Anterior Segment using Ultrasound Biomicroscopy after Cataract Surgery and Intraocular Lens Implantation

2016 ◽  
Vol 27 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Erkan Ünsal ◽  
Kadir Eltutar ◽  
İlkay K. Muftuoglu
Keyword(s):  
Intraocular Lens ◽  
Trabecular Meshwork ◽  
Anterior Segment ◽  
Crystalline Lens ◽  
Ultrasound Biomicroscopy ◽  
Intraocular Lens Implantation ◽  
Ciliary Process ◽  
Lens Implantation ◽  
Anterior Segment Parameters ◽  
Morphologic Changes

Purpose To evaluate morphologic changes in the anterior segment using ultrasound biomicroscopic imaging (UBM) after phacoemulsification and foldable intraocular lens implantation (IOL). Methods Thirty-six patients with a mean age of 68.68 ± 8.44 years (range 51-89) who had phacoemulsification and foldable IOL implantation were included in this prospective study. Several anterior segment parameters including aqueous depth (AQD), trabecular meshwork-iris angle (TIA), ciliary body thickness (CBT), sclera thickness (ST), trabecular meshwork-ciliary process distance (T-CPD), iris-ciliary processes distance (I-CPD), and iris thickness (IT) were measured using UBM preoperatively and at postoperative month 2. Results There was a significant increase in AQD (p<0.001) and TIA (p<0.001) at postoperative month 2. However, CBT, ST, T-CPD, I-CPD, and IT did not significantly change (p>0.05) during the study period. Conclusions Removal of the crystalline lens results in change in the anterior segment parameters. Our results confirmed that UBM is a helpful option for the analysis of anterior segment structures both qualitatively and quantitatively.

Rotational stability of a toric intraocular lens: Influence of axial length and alignment in the capsular bag

2012 ◽  
Vol 38 (1) ◽  
pp. 54-59 ◽  
Author(s):  
Gauri D. Shah ◽  
Mamidipudi R. Praveen ◽  
Abhay R. Vasavada ◽  
Viraj A. Vasavada ◽  
Gauri Rampal ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Axial Length ◽  
Rotational Stability ◽  
Toric Intraocular Lens ◽  
Capsular Bag

scholarly journals Clinical Evaluation of Toric Intraocular Lens Implantation Based on iTrace Wavefront Keratometric Astigmatism

2020 ◽  
Author(s):  
Zhe Zhang ◽  
Hui Li ◽  
Jing Zhou ◽  
Yaqin Zhang ◽  
Suhua Zhang
Keyword(s):  
Intraocular Lens ◽  
Case Series ◽  
Standard Technique ◽  
Rotational Stability ◽  
Toric Intraocular Lens ◽  
Vector Method ◽  
Toric Iol ◽  
Iol Implantation ◽  
Wavefront Aberrometry ◽  
Prospective Case Series

Abstract Background: There was no standard technique for measuring corneal astigmatism. The iTrace wavefront aberrometry of cornea calculated steep power and axis based on the best Zernike mathematical fit from all topo data within 4 mm circle. It was supposed to be more accurate than iTrace simulated keratometry which was calculated based on only 4 points on the circle of 3 mm. This study evaluated visual outcomes, rotational stability after performing toric intraocular lens (IOL) implantation planning based on the wavefront aberrometry of the cornea with iTrace. Setting: Single site in China, Shanxi Eye Hospital, Shanxi, China.Design: Prospective case series.Methods: The study included 85 eyes of 63 patients undergoing phacoemulsification and toric IOL implantation. The IOL power and cylinders were chosen with the help of the iTrace toric planning program using wavefront keratometric astigmatism. Over a 3-month follow-up period, astigmatic changes were assessed using the Alpins vector method. Results: Preoperative mean corneal topographic astigmatism was 1.91 diopters (D) ± 0.69 (standard deviation). Postoperative mean refractive astigmatism decreased significantly to 0.48 D ± 0.34. Surgical induced astigmatism was 1.73 D ± 0.77 and the mean correction index was 0.89 ± 0.22, showing a slight undercorrection. The proportion of astigmatism ≤ 0.50 D increased from 0 to 71.8% postoperatively.Conclusions: This is the first study evaluating the clinical outcomes of using iTrace wavefront keratometric readings to plan a toric IOL implantation. The findings show that the iTrace built-in toric calculator with wavefront keratometric astigmatism for toric IOL planning is safe and effective.Trial registration: Current Controlled Trials ISRCTN94956424, Retrospectively registered (Date of registration: 05 February 2020). http://www.isrctn.com/ISRCTN94956424.

scholarly journals Implantation of a trifocal toric intraocular lens to a patient with pigment dispersion syndrome

2019 ◽  
Vol 100 (3) ◽  
pp. 495-499
Author(s):  
R F Akhmetshin ◽  
M R Gilyazev ◽  
A T Galeeva ◽  
S N Bulgar
Keyword(s):  
Intraocular Pressure ◽  
Intraocular Lens ◽  
Anterior Segment ◽  
Ultrasound Biomicroscopy ◽  
Pigment Dispersion ◽  
Toric Intraocular Lens ◽  
Lens Extraction ◽  
Pigment Dispersion Syndrome ◽  
Myopic Astigmatism ◽  
Peripheral Iridotomy

Aim. To present a clinical case of treatment of pigment dispersion syndrome by clear lens extraction and implantation of a toric intraocular lens in a patient with myopic astigmatism. Methods. A 33-year-old patient with a diagnosis of moderate myopia, complex mild myopic astigmatism, pigment dispersion syndrome of both eyes. Results. The first stage was laser peripheral iridotomy of both eyes. On follow-up pathological irido-zonular contact and increases intraocular pressure by 2 mm persisted. The second stage included clear lens extraction and implantation of a toric multifocal intraocular lens to both eyes. In 2 months, distance and near visual acuity was 1.0, intraocular pressure was normal, no pathological irido-zonular contact was observed according to the ultrasound biomicroscopy. Conclusion. Implantation of an intraocular lens in patients with myopia and pigment dispersion syndrome is both a method of preventing pigment glaucoma and myopia correction; patients with pigment dispersion syndrome after peripheral iridotomy should monitor the state of the anterior segment of the eye and the effectiveness of the treatment by ultrasound biomicroscopy.

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