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Toric lens

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https://www.readbyqxmd.com/read/29907629/cataract-surgery-refractive-outcomes-representative-standards-in-a-national-health-service-setting
#1
Kerr Brogan, Charles J M Diaper, Alan P Rotchford
BACKGROUND/AIMS: To report refractive outcomes from an National Health Service (NHS) cataract surgery service and assess if results meet suggested benchmark standard. METHODS: Details of all patients undergoing cataract surgery in the Southern General and New Victoria hospitals in Glasgow, UK, between November 2006 and December 2016 were prospectively entered into an electronic database. Patients were reviewed 4 weeks postoperatively in the eye clinic and underwent refraction at their local optometrist prior to this appointment...
June 15, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29904411/efficacy-of-toric-intraocular-lens-implantation-in-eyes-with-high-myopia-a-prospective-case-controlled-observational-study
#2
Tao Guo, Peng Gao, Li Fang, Li Guo, Yuchen Fan, Changgen Liu
The present prospective clinical observational study aimed to evaluate the efficacy of Toric intraocular lenses (IOL) to achieve rotational stability and astigmatism correction in eyes with high myopia. A total of 27 consecutive cataract patients (39 eyes) with pre-existing corneal astigmatism (1.5-3.5 D) were divided into two groups according to their refractive status: One group of 18 eyes with high myopia -(12.5-6.0 D) and another group consisting of 21 eyes with emmetropia or low myopia (-3.0-0.0 D). All eyes underwent cataract phacoemulsification surgeries by the same surgeon, with the implantation of an AcrySof® Toric IOL at the pre-designed degree...
June 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29890084/assessment-of-corneal-keratometric-and-astigmatism-measurements-using-verion-system-and-other-instruments-in-cataract-patient
#3
Yana Fu, Xinxin Yu, Giacomo Savini, Jinhai Huang, Hengli Lian, Benhao Song, Qinmei Wang, Yune Zhao
PURPOSE: To compare keratometry and corneal astigmatism measurements obtained by the Verion Image Guided System to those obtained by automated keratometry (IOLMaster), manual keratometry (YZ38, Suzhou 66 visual Polytron Technologies Inc, China), and Scheimpflug imaging (Pentacam HR) in eyes with cataract. METHODS: 149 cataractous eyes of 149 patients were examined and categorized as low astigmatism (<1.0D, N = 50), moderate astigmatism (1.0-2.0D, N = 49), and high astigmatism (>2...
June 11, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29889290/agreement-between-internal-astigmatism-and-posterior-corneal-astigmatism-in-pseudophakic-eyes
#4
Sepehr Feizi, Siamak Delfazayebaher, Mohammad Ali Javadi
PURPOSE: To directly measure internal astigmatism and evaluate its agreement with posterior corneal astigmatism in pseudophakic eyes. METHODS: This prospective study enrolled 32 eyes of 32 patients (18 women, 56.3%) who underwent phacoemulsification with implantation of a non-toric monofocal intraocular lens (IOL). Two months postoperatively, posterior corneal astigmatism was measured using a Pentacam Scheimpflug analyzer (Oculus Optikgeräte GmbH, Wetzlar, Germany)...
June 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29889288/factors-associated-with-residual-astigmatism-after-toric-intraocular-lens-implantation-reported-in-an-online-toric-intraocular-lens-back-calculator
#5
Richard Potvin, Brent A Kramer, David R Hardten, John P Berdahl
PURPOSE: To evaluate factors associated with residual astigmatism after toric intraocular lens implantation based on data from an online toric intraocular lens (IOL) back-calculator. METHODS: This was a retrospective data review of an online toric IOL back-calculator, which allows users to input preoperative toric planning information and postoperative lens orientation and refractive results. These data were used to determine the optimal orientation of the IOL to minimize residual refractive astigmatism...
June 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29861054/astigmatism-induced-by-intraocular-lens-tilt-evaluated-via-ray-tracing
#6
Mitchell P Weikert, Abhinav Golla, Li Wang
PURPOSE: To evaluate astigmatism induced by aspheric and toric intraocular lens (IOL) tilt using a ray-tracing model. SETTING: Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. DESIGN: Experimental study. METHODS: Ray-tracing eye models with aspheric IOLs (16.0 diopters [D], 22.0 D, and 28.0 D) and toric IOLs (16.0 D, 22.0 D, and 28.0 D each with toricities of 1.50 D, 3.75 D, and 6.00 D) were used...
June 1, 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29845344/-hyperopic-laser-in-situ-keratomileusis-after-trifocal-intraocular-lens-implantation-aberration-free-femto-laser-in-situ-keratomileusis-treatment-after-implantation-of-a-diffractive-multifocal-toric-intraocular-lens-case-analysis
#7
E Hemkeppler, M Böhm, T Kohnen
A 52-year-old highly myopic female patient was implanted with a multifocal, diffractive, toric intraocular lens because of the wish to be independent of eyeglasses. Despite high-quality, extensive preoperative examinations, a hyperopic refractive error remained postoperatively, which led to the patient's dissatisfaction. This error was treated with Laser-in-situ-Keratomileusis (LASIK). After corneal LASIK treatment and implantation of a diffractive toric multifocal intraocular lens the patient showed a good postoperative visual result without optical phenomena...
May 29, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29806506/predictive-role-of-paracentral-corneal-toricity-using-elevation-data-for-treatment-zone-decentration-during-orthokeratology
#8
Zhouyue Li, Dongmei Cui, Wen Long, Yin Hu, Liying He, Xiao Yang
PURPOSE: To investigate the influence of paracentral corneal toricity using elevation data on the treatment zone decentration of spherical and toric orthokeratology (Ortho-k) lens. Methods:Corneal elevation difference (CED) was defined as the difference of corneal elevation between the two principle meridians at 8-mm chord, representing the paracentral corneal toricity. Seventy-five subjects included in this prospective study were divided into low CED group (LCED<30μm, n = 25) and high CED group (HCED≥30μm, n = 50)...
May 26, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29784166/opinions-on-corrective-refractive-surgery
#9
Helen Chung, Emi Sanders, Jamie Bhamra
OBJECTIVE: To investigate public perception that ophthalmologists are hesitant to undergo refractive surgery by determining the personal opinions of ophthalmologists on different surgical options. DESIGN: Prospective cross-sectional survey. PARTICIPANTS: Members of the American Society of Cataract and Refractive Surgery electronic mailing list. METHODS: An online survey administered from July to August 2014. RESULTS: There were 396 (5...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29778108/rotation-of-a-toric-intraocular-lens-from-neodymium-yag-laser-posterior-capsulotomy
#10
Clemens Kaindlstorfer, Mario Kneifl, Peter Reinelt, Ulrich Schönherr
A 77-year-old man had cataract surgery in the left eye in March 2017. A toric intraocular lens (IOL) was implanted because of astigmatism. The postoperative meridian of the IOL was located nearly exactly in the planned meridian, which was controlled 1 week later with ray-tracing aberrometry (iTrace) and the smartphone application Axis Assistant. The referring ophthalmologist proceeded directly with a neodymium:YAG (Nd:YAG) laser posterior capsulotomy in his own office, after which the meridian of the implanted toric IOL was rotated more than 115 degrees...
April 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29747366/-a-multicenter-study-of-the-effectiveness-and-safety-of-toric-intraocular-lens-implantation
#11
X D Song, Y S Hao, Y Z Bao, Z H Li, H Zhang, A Y Yu, M S Zhao, Y S Huang, J Fang, Y Liu, N L Wang
Objective: To evaluate the effectiveness and safety of Proming(®)Toric intraocular lens (IOL) in adults with cataract combined with corneal regular astigmatism. Methods: Multicentre, randomized, open and positive parallel controlled clinical study. A total of 121 patients (121 eyes) who had cataract combined with corneal regular astigmatism and met the inclusion criteria were enrolled in 9 hospitals from May 2014 to May 2016. There were 45 males and 76 females and the median age was 71 (42-88) years old. A total of 121 patients (121 eyes) were randomly assigned to the study group and the control group through the Central Randomization System...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29747363/-value-the-correction-of-corneal-astigmatism-in-cataract-surgery
#12
J Wang, Y X Cao
The aim of modern micro-incision phacoemulsification combined with foldable intraocular lens implantation and femtosecond laser-assisted cataract surgery is evolving from a simple pursuit of recuperation to a refractive procedure, which involves the correction of ametropia according to preoperative and postoperative refractive conditions, especially corneal astigmatism, in order to achieve the goal of optimized postoperative uncorrected full range of vision. Nowadays, due attention to the effect of preoperative corneal astigmatism, surgery-induced astigmatism and residual astigmatism after operation is lacked, which affect postoperative visual acuity significantly...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29731603/comparative-evaluation-of-toric-intraocular-lens-alignment-and-visual-quality-with-image-guided-surgery-and-conventional-three-step-manual-marking
#13
Jeewan S Titiyal, Manpreet Kaur, Cijin P Jose, Ruchita Falera, Ashutosh Kinkar, Lalit Ms Bageshwar
Purpose: To compare toric intraocular lens (IOL) alignment assisted by image-guided surgery or manual marking methods and its impact on visual quality. Patients and methods: This prospective comparative study enrolled 80 eyes with cataract and astigmatism ≥1.5 D to undergo phacoemulsification with toric IOL alignment by manual marking method using bubble marker (group I, n=40) or Callisto eye and Z align (group II, n=40). Postoperatively, accuracy of alignment and visual quality was assessed with a ray tracing aberrometer...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29713653/comparison-of-clinical-outcomes-between-femtosecond-laser-assisted-versus-conventional-phacoemulsification
#14
Robert Edward Ty Ang, Michelle Marie Salcedo Quinto, Emerson Marquez Cruz, Mark Christian Reyes Rivera, Gladness Henna Austria Martinez
Background: To compare femtosecond laser-assisted versus conventional phacoemulsification in terms of visual and refractive outcomes, cumulative dissipated energy, anterior chamber inflammation and endothelial cell loss. Methods: In this retrospective cohort study, records of eyes that underwent femtosecond laser-assisted cataract surgery (FLACS) or conventional phacoemulsification (CP) were reviewed. The Victus femtosecond laser (Bausch and Lomb, Germany) was used to carry out corneal incisions, anterior capsulotomy, and lens fragmentation in FLACS procedures...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29699518/comparison-of-two-techniques-for-toric-intraocular-lens-implantation-hydroimplantation-versus-ophthalmic-viscosurgical-devices
#15
Yueqin Chen, Qian Cao, Chunyan Xue, Zhenping Huang
BACKGROUND: To compare the results between hydroimplantation of a single-piece, acrylic foldable toric intraocular lens (IOLs) and conventional implantation using an ophthalmic viscosurgical device (OVD). METHODS: In this study, 60 eyes with cataract and preexisting regular corneal astigmatism of 1.0 to 3.0 diopters (D) underwent the implantation of the AcrySof toric IOLs (Alcon Laboratories, Inc.). The patients were randomly assigned to a conventional implantation technique with an OVD or a hydroimplantation technique...
April 24, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29692478/a-clinical-study-to-evaluate-the-results-after-toric-intraocular-lens-implantation-in-cases-of-corneal-astigmatism
#16
P S Moulick, V K Mohindra, V S Gurunadh, Parth Patel, Sandeep Gupta, M A Khan
Backgroud: Modern day cataract surgery aims at a spectacle free vision which becomes difficult in cases with pre-operative astigmatism more than 1.5 D. Implantation of toric intra-ocular lenses (IOL) after phacoemulsification in such eyes is one of the ways to counteract this problem. Methods: Thirty eyes with pre-operative astigmatism between 1.5 D and 4.5 D were implanted with toric IOLs following uneventful phaco-emulsification. The estimation of the axis of implantation of this toric IOL included calculating the surgically induced astigmatism (SIA) of the surgeon...
April 2018: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/29685740/-refractive-outcomes-and-precision-in-toric-intraocular-lens-alignment-using-an-automated-alignment-system
#17
T Cornut, D Touboul, S Rouglan, L Tellouck, J Tellouck, J-F Korobelnik, C Schweitzer
PURPOSE: To compare precision in toric intraocular lens (TIOL) alignment and refractive outcomes between an intraoperative automated digital marker system and the conventional manual-ink marking. MATERIALS AND METHODS: Prospective single center study including consecutive patients undergoing uneventful cataract surgery with corneal astigmatism greater than 1 diopter. Total corneal astigmatism was measured using a placido-dual Scheimpflug system (GalileiG4® , Ziemer)...
April 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29685737/low-power-versus-medium-power-toric-intraocular-lenses-in-cataract-surgery-about-110-eyes
#18
A Mairot, H El Chehab, E Agard, A Rezkallah, V Bouteleux, C Dot
PURPOSE: To analyze the refractive predictability of low-power and medium-power toric intraocular lenses (IOL) during cataract surgery. METHODS: A retrospective case series. Patients with low and moderate degrees of astigmatism were treated with either an Alcon AcrySof IQ toric monofocal lens (SN6AT2 or SN6AT3) or a Zeiss toric monofocal lens (709 MP + 1 D or 709 MP + 1.5 D). They were divided into two groups: group 1 with low-power toric IOL (n = 40, SN6AT2 and 709 MP + 1), group 2 with medium-power toric IOL (n = 70, SN6AT3 and 709 MP + 1...
April 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29675386/comparison-of-myopia-control-between-toric-and-spherical-periphery-design-orthokeratology-in-myopic-children-with-moderate-to-high-corneal-astigmatism
#19
Yu Zhang, Yue-Guo Chen
AIM: To compare clinical results between toric and spherical periphery design orthokeratology (ortho-k) in myopic children with moderate-to-high corneal astigmatism. METHODS: This retrospective study enrolled 62 eyes of 62 subjects using toric ortho-k lenses. These subjects were assigned to the toric group. Based on the one-to-one match principle (same age, proximate spherical equivalence and corneal astigmatism), 62 eyes of 62 subjects were enrolled and included in the spherical group...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29667423/suturing-technique-for-scleral-fixation-of-toric-intraocular-lens-in-the-traumatic-aphakic-eye-with-corneal-astigmatism
#20
Qintuo Pan, Zhengwei Yang, Xiaomeng Chen, Wenlong Wei, Zhisheng Ke, Ding Chen, Fang Huang, Junyong Cai, Zhenquan Zhao
PURPOSE: To describe the clinical outcomes of traumatic aphakic eyes with corneal astigmatism after using a novel technique for toric intraocular lens suture fixation. METHODS: In total, 12 eyes of 12 patients who underwent a new scleral suture fixation technique of one-piece toric intraocular lens (SN6AT series, Alcon Inc., TX, USA) were included in our retrospective study. Preoperative patient status, postoperative visual acuity and refractive outcomes, postoperative intraocular lens rotation, tilt, decentration, and complications were analyzed...
April 1, 2018: European Journal of Ophthalmology
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