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https://www.readbyqxmd.com/read/28298709/prevalence-of-corneal-astigmatism-in-an-nhs-cataract-surgery-practice-in-northern-ireland
#1
David S Curragh, Patrick Hassett
PURPOSE: Post-operative corneal astigmatism following cataract surgery can leave the patient with visual impairment. Correcting it at the time of surgery with a toric intraocular lens (TIOL) can give patients a better final visual outcome. The purpose was to determine the prevalence of corneal astigmatism in a cataract population and assess the demand for TIOL. METHODS: Keratometric data was collected and analyzed for all patients who attended for routine cataract surgery under the care of a single surgeon based in Altnagelvin Area Hospital, Northern Ireland (NI)...
January 2017: Ulster Medical Journal
https://www.readbyqxmd.com/read/28289879/-predictability-of-residual-astigmatism-after-implantation-of-posterior-chamber-toric-lenses
#2
D Mies, T Klink, W Eisenbarth, L M Meyer
BACKGROUND: The objective of the study was to examine the predictability of residual astigmatism after cataract surgery and implantation of the posterior chamber aspheric toric lens TECNIS® ZCT, Abott Medical Optic (Ettlingen, Deutschland). MATERIAL AND METHODS: The retrospective study included a total of 88 patient eyes undergoing a cataract operation with a toric lens implantation between March 2014 and October 2015. The inclusion criteria were a regular astigmatism of at least 0...
March 13, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28264129/the-effect-of-lens-sphere-and-cylinder-power-on-residual-astigmatism-and-its-resolution-after-toric-intraocular-lens-implantation
#3
John P Berdahl, David R Hardten, Brent A Kramer, Richard Potvin
PURPOSE: To analyze correlations between residual refractive cylinder (and its correction through lens reorientation) with the sphere and cylinder power of the toric intraocular lens (IOL) implanted. METHODS: An online toric back-calculator (www.astigmatismfix.com) allows users to input toric IOL planning data, along with postoperative IOL orientation and refractive results; these data are used to determine the optimal orientation of the IOL to reduce refractive astigmatism...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28253404/protective-role-of-orthokeratology-in-reducing-risk-of-rapid-axial-elongation-a-reanalysis-of-data-from-the-romio-and-to-see-studies
#4
Pauline Cho, Sin-Wan Cheung
Purpose: To determine the relative risk of rapid progression and number needed to treat (NNT) in younger and older children using combined data from the retardation of myopia in orthokeratology (ROMIO) and toric orthokeratology-slowing eye elongation (TO-SEE) studies. Methods: Data from 136 subjects of two studies, ROMIO and TO-SEE, were retrieved (72 orthokeratology [ortho-k]: 37 ROMIO, 35 TO-SEE; 64 control: 41 ROMIO, 23 TO-SEE) and the myopia control effect on younger (6-8 years) and older (9-12 years) subjects evaluated...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28225492/clinical-application-of-ticl-implantation-for-ametropia-following-deep-anterior-lamellar-keratoplasty-for-keratoconus-a-consort-compliant-article
#5
Qin Qin, Liping Yang, Zifang He, Zhenping Huang
BACKGROUND: This study aimed to investigate the clinical application of phakic toric intraocular collamer lens (TICL) implantation in treating ametropia following deep anterior lamellar keratoplasty (DALK) for patients with keratoconus, especially the effectiveness and safety of high astigmatism and indications of TICL implantation after corneal transplantation. METHODS: Using the self-controlled case series observation approach, 9 patients with ametropia (9 eyes) who underwent DALK surgery for keratoconus 1...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28223775/a-comparison-of-three-different-corneal-marking-methods-used-to-determine-cyclotorsion-in-the-horizontal-meridian
#6
Hung-Yuan Lin, Yi-Ting Fang, Ya-Jung Chuang, Justin N Karlin, Hsin-Yang Chen, Szu-Yuan Lin, Pi-Jung Lin, Ming Chen
During toric intraocular lens (IOL) implantation, surgeons must take particular care to ensure that inaccurate preoperative measurement and intraoperative misalignment do not cause unexpected postoperative residual astigmatism. This retrospective, comparative case series study aimed to analyze the rotational deviation, or cyclotorsion, of three corneal marking methods: VERION digital marker (VDM; reference), horizontal slit beam marking (HSBM), and subjective direct visual marking (SDVM) on the table (using a bevel knife tip)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28222711/pseudophakic-ametropia-management-with-toric-implantable-collamer-lens-with-a-central-hole-case-report
#7
Xun Chen, Xiaoying Wang, Xingtao Zhou
BACKGROUND: To report the clinical outcomes of correcting pseudophakic ametropia using toric implantable collamer lens with a 360 um central hole (TICL V4c). CASE PRESENTATION: The right eye of a 22-year-old male patient developed high myopia after unilateral phacoemulsification and intraocular lens (IOL) implantation following traumatic cataract 16 years ago. The manifest refraction was -11.50 DS/-2.50 DC × 175 with an uncorrected distance visual acuity (UDVA) of 20/2000 and a corrected distance visual acuity (CDVA) of 20/20...
February 21, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28210183/intraocular-lens-power-overestimation-in-a-patient-with-history-of-circling-keratorraphy
#8
Vasilios F Diakonis, Nilufer Yesilirmak, George D Kymionis, Sonia H Yoo
We report a case of cataract extraction and intraocular lens (IOL) power overestimation in a patient with history of hyperopia managed with circling keratorraphy. A 65-year-old female presented to our institute complaining of decreased vision in both eyes. The patient had a history of bilateral hyperopia that was managed 20 years ago (1994) with circling keratorraphy. At presentation her uncorrected distance visual acuity (UDVA) was 20/70 and 20/60 in her right eye (OD) and left eye (OS), respectively, while her corrected distance visual acuity (CDVA) was 20/25 OD and 20/25 OS with manifest refraction of -0...
July 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28185842/corneal-astigmatism-measurement-by-ray-tracing-versus-anterior-surface-based-keratometry-in-candidates-for-toric-iol-implantation
#9
Ugo de Sanctis, Piero Donna, Rachele R Penna, Maria Isabella Calastri, Chiara M Eandi
PURPOSE: To compare corneal astigmatism derived from total corneal refractive power (CATCRP), a ray-tracing method, with that derived from simulated keratometry (CASimK), an anterior surface-based method, in candidates for toric intraocular lens (IOL) implantation. DESIGN: Reliability analysis. METHODS: In one eye of 200 consecutive patients (mean age 71 ±9 years) with cataract, a Pentacam HR (Oculus, Wetzlar, Germany) was used to measure CATCRP and CASimK...
February 6, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28101039/multifocal-toric-intraocular-lens-for-traumatic-cataract-in-a-child
#10
Yanfeng Zeng, Licheng Fan, Peirong Lu
A child suffering from traumatic cataract and corneal astigmatism of 2.14 D had a phacoemulsification operation and implantation of a ReSTOR Toric intraocular lens (IOL) to correct the astigmatism. The primary outcome measurements were the uncorrected distance visual acuity (UDVA), uncorrected near vision at 40 cm, intraocular pressure, spherical equivalent refraction, residual astigmatism, corneal astigmatism, presence of unusual optical phenomena, and use of spectacles. At 7 months postoperatively, UDVA was maintained between 16/20 and 24/20, near vision was between J1 and J3, residual spherical refraction was 0-0...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28096654/comparison-of-visian-toric-collamer-lens-and-toric-acrylic-intraocular-lens-implantation-for-the-treatment-of-myopia-with-astigmatism
#11
Hatem Ammar, Mohamed Anbar, Marwa M Abdellah
PURPOSE: To compare the efficacy and outcome of phakic toric implantable collamer lens (TICL) and refractive clear lens extraction with AcrySof Toric intraocular lens (TIOL) implantation for the treatment of myopic astigmatism. PATIENTS AND METHODS: This study assessed eyes with myopic astigmatism >-1 D and ≤-4 D with a spherical equivalent >10 D or <10 D if the patients were unsuitable for corneal refractive surgery. These eyes were divided into group A, in which Visian Toric ICL™ Phakic TICL was implanted, and group B, which involved clear lens extraction with implantation of an AcrySof IQ toric SN60T3-9™ IOL...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28091897/comparative-analysis-of-the-visual-and-refractive-outcomes-of-a-refractive-segmented-multifocal-intraocular-lens-with-and-without-toricity-1-year-results
#12
Ryo Shodai, Kazuno Negishi, Hiroyuki Arai, Ikuko Toda, Hidemasa Torii, Kazuo Tsubota
PURPOSE: To compare the visual and refractive outcomes up to 1 year postoperatively following implantation of a refractive segmented or a refractive segmented toric multifocal intraocular lens (IOL). METHODS: This retrospective study included 108 eyes of 64 patients who underwent cataract surgery with implantation of a refractive segmented multifocal IOL (Lentis Mplus LS-313 MF30 IOL) (LM group) and 81 eyes of 49 patients with implantation of a refractive segmented toric multifocal IOL (Lentis Mplus LU-313 MF30T IOL) (LMT group)...
March 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28086913/correction-of-irregular-and-induced-regular-corneal-astigmatism-with-toric-iol-after-posterior-segment-surgery-a-case-series
#13
Bence L Kolozsvári, Gergely Losonczy, Dorottya Pásztor, Mariann Fodor
BACKGROUND: Toric intraocular lens (IOL) implantation can be an effective method for correcting corneal astigmatism in patients with vitreoretinal diseases and cataract. Our purpose is to report the outcome of toric IOL implantation in two cases - a patient with scleral-buckle-induced regular corneal astigmatism and a patient with keratoconus following pars plana vitrectomy. As far as we are aware, there are no reported cases of toric IOL implantation in a vitrectomized eye with keratoconus nor of toric IOL implantation in patients with scleral-buckle-induced regular corneal astigmatism...
January 13, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28073689/corneo-scleral-contact-lens-in-a-piggyback-system-for-keratoconus-a-case-report
#14
Esteban Porcar, Juan Carlos Montalt, Enrique España-Gregori, Cristina Peris-Martínez
PURPOSE: We describe a case of fitting a corneo-scleral contact lens with a multi-aspheric geometry design (MAGD CScL) on top of a daily silicone hydrogel lens (piggyback system) for keratoconus management. METHODS: A 48-year-old man using soft toric contact lenses required an improvement in the unsatisfactory quality of his vision. He presented with bilateral asymmetric keratoconus with high myopia in the right eye (RE) and severe myopia in the left eye (LE). In addition, he had low vision in his LE because of a maculopathy...
January 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28005433/combined-special-capsular-tension-ring-and-toric-iol-implantation-for-management-of-astigmatism-and-high-axial-myopia-with-cataracts
#15
Yang Zhao, Jiaxin Li, Ke Yang, Xiao Li, Siquan Zhu
AIM: This study aimed to compare the effects of toric intraocular lens (IOL) implantation with a capsular tension ring and toric IOL implantation only in patients with axial myopic astigmatism who had undergone cataract surgery. METHODS: Of 34 patients with axial myopia, 16 patients who had received IOL and capsular tension ring (CTR) implantation were included in the combined group and 18 patients who received toric IOL implantation only were included in the simple group...
December 22, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28003977/combination-of-toric-and-multifocal-intraocular-lens-implantation-in-bilateral-cataract-patients-with-unilateral-astigmatism
#16
Jing-Li Liang, Fang Tian, Hong Zhang, He Teng
AIM: To assess the binocular visual function in bilateral cataract patients with unilateral astigmatism after combined implantations of Toric with multifocal intraocular lens (IOL), and to compare with that of Toric and monofocal IOL implantation. METHODS: All the 30 patients with unilateral astigmatism suffered bilateral cataract were randomly divided into two groups: Toric plus multifocal IOL group and Toric plus monofocal IOL group. Uncorrected and corrected visual acuity at distance (5...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27980362/effectiveness-of-toric-orthokeratology-in-the-treatment-of-patients-with-combined-myopia-and-astigmatism
#17
RANDOMIZED CONTROLLED TRIAL
Byul Lyu, Kyu Yeon Hwang, Sun Young Kim, Su Young Kim, Kyung Sun Na
PURPOSE: The purpose of this multi-institute, single-group clinical trial was to evaluate the effectiveness and safety of toric orthokeratology lenses for the treatment of patients with combined myopia and astigmatism. METHODS: A total of 44 patients were included in this clinical trial. The patients ranged in age from 7 to 49 years, with myopia of -0.75 to -6.0 diopters (D) and astigmatism of 1.25 to 4.0 D. After excluding 21 subjects, 23 subjects (39 eyes) were analyzed after toric orthokeratology lens use...
December 2016: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/27958211/toric-multifocal-intraocular-lens-implantation-in-a-case-of-bilateral-anterior-and-posterior-lenticonus-in-alport-syndrome
#18
Jeevan S Ladi, Nitant A Shah
We report the first case of toric multifocal intraocular lens (IOL) implantation in both the eyes of a young patient of Alport syndrome with anterior and posterior lenticonus with a successful outcome. An 18-year-old female patient presented with progressively blurred vision in both eyes since 4-5 years not improving with glasses. Refraction showed high myopia with astigmatism; however, the vision did not improve beyond 6/60 with glasses correction. Clinical examination on slit lamp showed anterior and posterior lenticonus bilaterally with a classical oil droplet appearance...
November 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27956286/residual-astigmatism-after-toric-intraocular-lens-implantation-analysis-of-data-from-an-online-toric-intraocular-lens-back-calculator
#19
Brent A Kramer, John P Berdahl, David R Hardten, Richard Potvin
PURPOSE: To evaluate some possible causes for residual astigmatism after toric intraocular lens (IOL) implantation based on an analysis of data from an online toric IOL back-calculator. DESIGN: Retrospective data review. METHODS: An online toric back-calculator was designed to allow users to input preoperative toric planning information along with postoperative IOL orientation and refractive results. These were then used to determine the optimum orientation of the IOL to reduce refractive astigmatism...
November 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27898516/clinical-evaluation-of-large-diameter-rigid-gas-permeable-versus-soft-toric-contact-lenses-for-the-correction-of-refractive-astigmatism-a-multicenter-study
#20
Langis Michaud, Edward S Bennett, Stephanie L Woo, Renee Reeder, Bruce W Morgan, Amy Dinardo, Jennifer S Harthan
PURPOSE: This study aims to address the clinical performance of a large diameter rigid gas permeable lens (LRGP) in a group of subjects with low-to-moderate (0.75-2.75 D) refractive astigmatism. An additional goal was to determine whether soft toric or LRGP contact lenses performed better objectively in the correction of astigmatism and to determine which modality is preferred by subjects. METHODS: This was a multisite prospective cross-over clinical study. Ten asymptomatic contact lens wearers per site (four university clinics) were recruited and randomly assigned to group A or group B...
November 24, 2016: Eye & Contact Lens
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