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implantable collamer lens AND vault

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https://www.readbyqxmd.com/read/27852246/comparison-of-intraocular-pressure-andvault-after-implantation-of-implantable-collamer-lens-with-and-without-a-central-hole
#1
Haiting Chen, Guangzeng Niu, Yuxiang Fan, Jingxue Ma
BACKGROUD: The Implantable Collamer Lens (ICL) has been used widely for refractive errors, We performed this prospective randomized comparative study to compare postoperative intraocular pressure (IOP) and vaults of the eyes implanted with conventional ICL and central hole ICL. METHODS: This study evaluated 44 eyes of 22 patients who underwent central hole ICL implantation in one eye and conventional ICL implantation in the other eye by randomization assignment...
November 16, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27681455/management-of-pseudophakic-myopic-anisometropic-amblyopia-with-piggyback-visian-%C3%A2-implantable-collamer-lens
#2
Sherif A Eissa
PURPOSE: To assess the outcomes of sulcus implantation of the Visian(®) implantable collamer lens (ICL) to correct pseudophakic myopic anisometropic amblyopia with myopic shift and/or primary refractive overcorrection. METHODS: Prospective case series enrolled 14 pseudophakic eyes of 14 patients, 5-9 years old, with history of cataract surgery and primary in the bag-intraocular lenses (IOL) implantation, followed by myopic shift and/or refractive overcorrection and anisometropic amblyopia of variable degrees...
September 29, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27672446/in-vivo-positional-analysis-of-implantable-collamer-lens-using-ultrasound-biomicroscopy
#3
Ahmed Mohamed Kamal Elshafei, Mahmoud Mohamed Genaidy, Hossam Mohamed Moharram
Purpose. To evaluate the anterior segment, the anatomical position of the implantable collamer lenses (ICL), and its relationship to adjacent ocular structures using Ultrasound Biomicroscopy (UBM). Methods. In a prospective study, 142 myopic eyes of 93 patients implanted with Visian ICL were subjected to UBM examination between March 2010 and January 2015. The relative position of ICL to the adjacent structure and the overall iris configuration were evaluated. The machine calibers were used to measure the minimum central distance between the ICL and anterior lens capsule (vault) and the vertical central distance between the corneal endothelium and the ICL (E-ICL)...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27604229/comparison-of-early-changes-in-and-factors-affecting-vault-following-posterior-chamber-phakic-implantable-collamer-lens-implantation-without-and-with-a-central-hole-icl-v4-and-icl-v4c
#4
Xun Chen, Huamao Miao, Rajeev Krishnan Naidu, Xiaoying Wang, Xingtao Zhou
BACKGROUND: To objectively compare the early changes in vault over time following implantation of an Implantable Collamer Lens without (ICL V4) and with (ICL V4c) a central hole and the respective factors affecting vault change in moderate to high myopia. METHODS: This prospective study comprised of 38 eyes of 38 patients implanted with ICL V4 and 39 eyes of 39 patients implanted with ICL V4c intraocular lenses. We quantitatively assessed the postoperative values of vault and pupil size at 1 day, 1 week, and 1 month following implantation using a rotating Scheimpflug camera (Pentacam)...
2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27603723/computational-study-of-aqueous-humor-dynamics-assessing-the-vault-and-the-pupil-diameter-in-two-posterior-chamber-phakic-lenses
#5
José Ignacio Fernández-Vigo, Ana Macarro-Merino, Joaquín Fernández-Francos, Lucía De-Pablo-Gómez-de-Liaño, José María Martínez-de-la-Casa, Julián García-Feijóo, José Ángel Fernández-Vigo
PURPOSE: To compare the behavior of aqueous humor (AH) and analyze flow differences by comparing the volume and velocity of the flow after two different models of implantable collamer lens (ICL) placement. METHODS: Computational fluid dynamics with numerical simulation using Ansys Fluent software was performed to compare the AH flow through a peripheral iridotomy (PI), which is typically performed after implantation of a V4b lens to the central hole of a V4c lens...
September 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27603356/posterior-chamber-collagen-copolymer-phakic-intraocular-lens-with-a-central-hole-for-moderate-to-high-myopia-first-experience-in-china
#6
Xinfang Cao, Weiliang Wu, Yang Wang, Chen Xie, Jianping Tong, Ye Shen
The purpose of this article is to evaluate the clinical outcomes of a posterior chamber phakic intraocular lens (pIOL) (Visian Implantable Collamer Lens V4c) for the correction of moderate to high myopia in Chinese eyes.The article is designed as a retrospective case series.This study included the first consecutive eyes that had implantation of a new pIOL design with a central hole, at our department by the same surgeon. The safety, efficacy, predictability, stability, and adverse events of the surgery were evaluated over 6 months...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27463337/preoperative-biometric-parameters-predict-the-vault-after-icl-implantation-a-retrospective-clinical-study
#7
Qian-Yin Zheng, Wen Xu, Guan-Lu Liang, Jing Wu, Jun-Ting Shi
PURPOSE: To investigate the correlation between the preoperative biometric parameters of the anterior segment and the vault after implantable Collamer lens (ICL) implantation via this retrospective study. DESIGN: Retrospective clinical study. METHODS: A total of 78 eyes from 41 patients who underwent ICL implantation surgery were included in this study. Preoperative biometric parameters, including white-to-white (WTW) diameter, central corneal thickness, keratometer, pupil diameter, anterior chamber depth, sulcus-to-sulcus diameter, anterior chamber area (ACA) and central curvature radius of the anterior surface of the lens (Lenscur), were measured...
2016: Ophthalmic Research
https://www.readbyqxmd.com/read/27405290/real-time-assessment-of-intraoperative-vaulting-in-implantable-collamer-lens-and-correlation-with-postoperative-vaulting
#8
Jeewan S Titiyal, Manpreet Kaur, Suman Sahu, Namrata Sharma, Rajesh Sinha
PURPOSE: To assess the intraoperative vaulting in patients undergoing implantable collamer lens (ICL) implantation with microscope-integrated intraoperative optical coherence tomography (iOCT) and correlate it with the postoperative vaulting. METHODS: Forty eyes of 22 consecutive patients undergoing ICL implantation were prospectively evaluated. Vaulting was measured intraoperatively using microscope-integrated iOCT. The ICL-lenticular relationship was dynamically assessed throughout the surgery...
July 12, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/27354760/meta-analysis-and-review-effectiveness-safety-and-central-port-design-of-the-intraocular-collamer-lens
#9
REVIEW
Mark Packer
The purpose of this review is to summarize relevant data from publications appearing in the peer-reviewed scientific literature over the past decade since US Food and Drug Administration approval of the implantable collamer lens (ICL), and, in particular, to review studies relating to sizing methodology, safety, and effectiveness, as well as more recent studies reporting clinical outcomes of the V4c Visian ICL with KS Aquaport, VICMO. A literature search was conducted using two databases, PubMed.gov and Science...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27239582/implantable-collamer-lens-v4b-and-v4c-for-correction-of-high-myopia
#10
Vipul Bhandari, Smitha Karandikar, Jagdeesh K Reddy, Kirti Relekar
PURPOSE: To evaluate the visual outcome and intraocular pressure changes after Visian Implantable Collamer Lens (ICL) implantation V4b and V4c (with central hole) for correction of high myopia. METHODS: A prospective, consecutive, interventional comparative case series of V4b and V4c ICL implantation was done in high myopic patients who were unsuitable for laser vision. The main outcome measures studied were uncorrected and corrected distant visual acuity (UDVA, CDVA), ICL vault, intraocular pressure (IOP), endothelial cell count (ECC), and development of subcapsular lens opacities...
September 2015: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/26949611/comparison-of-anterior-section-parameters-using-anterior-segment-optical-coherence-tomography-and-ultrasound-biomicroscopy-in-myopic-patients-after-icl-implantation
#11
Jing Zhang, Hui-Hui Luo, Jing Zhuang, Ke-Ming Yu
AIM: To compare the agreement of anterior chamber depth (ACD) and central vault measurements obtained by anterior segment optical coherence tomography (AS-OCT) and ultrasound biomicroscopy (UBM) of post surgical high myopic eyes with posterior chamber phakic intraocular lens (Visian ICL; STAAR Surgical) implantation. METHODS: Fifty-two phakic eyes of 28 high myopic patients who underwent implantable Collamer lens (ICL) surgery for the correction of high myopia were studied...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/26941076/clinical-outcomes-and-cataract-formation-rates-in-eyes-10-years-after-posterior-phakic-lens-implantation-for-myopia
#12
Ivo Guber, Victoria Mouvet, Ciara Bergin, Sylvie Perritaz, Philippe Othenin-Girard, François Majo
Importance: Intraocular collamer lenses (ICLs) are posterior chamber phakic lenses that provide a refractive surgery option for those with high myopia or astigmatism. The short-term and midterm results indicate good refraction stability, efficacy, and safety. Cataract has been suggested to be an important long-term complication of ICL implantation. Objective: To report the rates of cataract development and refractive outcomes 10 years after ICL implantation. Design, Setting, and Participants: The study included 133 eyes of 78 patients undergoing consecutive V4 model ICL implantations, which took place from January 1, 1998, through December 31, 2004, at Jules-Gonin Eye Hospital, Lausanne, Switzerland...
March 3, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/26895160/effect-of-hole-size-on-fluid-dynamics-of-a-posterior-chamber-phakic-intraocular-lens-with-a-central-perforation-by-using-computational-fluid-dynamics
#13
Takushi Kawamorita, Kimiya Shimizu, Nobuyuki Shoji
BACKGROUND: A modified implantable collamer lens (ICL) with a central hole with a diameter of 0.36 mm, referred to as a hole-ICL, was created to improve aqueous humour circulation. The aim of this study is to investigate the ideal hole size in a hole-ICL from the standpoint of the fluid dynamic characteristics of the aqueous humour using computational fluid dynamics. METHODS: Fluid dynamics simulation using an ICL was performed with thermal-hydraulic analysis software FloEFD V 12...
April 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/26661832/long-term-clinical-results-of-posterior-chamber-phakic-intraocular-lens-implantation-to-correct-myopia
#14
Jongsoo Lee, Younghee Kim, Saekwang Park, Jungae Bae, Seunguk Lee, Youngmin Park, Jonghun Lee, Ji-Eun Lee
BACKGROUND: The aim of this study was to determine whether implantable collamer lens (ICL) implantation to correct myopia is an effective and safe surgical option even after long-term follow up. DESIGN: A retrospective observational study was carried out. PARTICIPANTS: A total of 281 eyes of 145 myopic patients were included in the study. METHODS: Patients underwent ICL implantation and had the follow-up period of at least 5 years (87 ± 18...
August 2016: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/26582312/effects-of-implantable-collamer-lens-v4c-placement-on-iridocorneal-angle-measurements-by-fourier-domain-optical-coherence-tomography
#15
José Ignacio Fernández-Vigo, Ana Macarro-Merino, Cristina Fernández-Vigo, José Ángel Fernández-Vigo, José María Martínez-de-la-Casa, Cristina Fernández-Pérez, Julián García-Feijóo
PURPOSE: To assess by Fourier-domain optical coherence tomography (FDOCT) changes produced in iridocorneal angle measurements in patients undergoing Visian Implantable Collamer Lens (ICL) V4c (STAAR Surgical AG) placement. DESIGN: Prospective interventional case series. METHODS: In 50 eyes of 25 myopic subjects consecutively scheduled for ICL implant, FDOCT (RTVue; Optovue Inc) iridocorneal angle measurements were made before and 1 and 3 months after surgery...
February 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/26265323/causes-of-elevated-intraocular-pressure-following-implantation-of-phakic-intraocular-lenses-for-myopia
#16
Salem Almalki, Abdullah Abubaker, Nasser A Alsabaani, Deepak P Edward
The purpose of this study is to present the causes and visual acuity outcomes in patients with elevated intraocular pressure (IOP) following implantable collamer lens (ICL) implantation. A chart review identified patients who developed high IOP at any postoperative examination and a minimum follow-up period of 3 months after ICL implantation. Data are reported out to 6 months postoperatively. Outcome measures included causes of elevated IOP, best-corrected visual acuity (BCVA) at last visit, number of glaucoma medications, other interventions, and glaucomatous damage...
April 2016: International Ophthalmology
https://www.readbyqxmd.com/read/26248348/implantable-collamer-lens-for-myopia-assessment-12-years-after-implantation
#17
Tomás Moya, Jaime Javaloy, Robert Montés-Micó, Jaime Beltrán, Gonzalo Muñoz, Raúl Montalbán
PURPOSE: To evaluate the long-term refractive and visual stability and the risks related to the implantation of Implantable Collamer Lens (ICL; STAAR Surgical, Monrovia, CA) phakic intraocular lens (PIOL) for myopia. METHODS: This retrospective, consecutive, cumulative clinical study was performed in a group of 144 eyes implanted with ICL PIOL for myopia. Only the cases with clinical data available 12 years after the implantation were included in the series. Corrected distance visual acuity (CDVA), uncorrected distance visual acuity, spherical equivalent, refractive astigmatism, endothelial cell density, ICL vaulting, and postoperative complications were analyzed...
August 2015: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/26189376/posterior-chamber-collagen-copolymer-phakic-intraocular-lens-with-a-central-hole-to-correct-myopia-one-year-follow-up
#18
Carlos Lisa, Miguel Naveiras, Belén Alfonso-Bartolozzi, Lurdes Belda-Salmerón, Robert Montés-Micó, José F Alfonso
PURPOSE: To assess the predictability, stability, efficacy, and safety of a newly developed posterior chamber phakic intraocular lens (pIOL) (model V4c Visian Implantable Collamer Lens) to correct moderate to high myopia. SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN: Prospective case series. METHODS: This study evaluated eyes that had implantation of the new pIOL model with a central hole for myopia correction...
June 2015: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/25840304/prevalence-of-cataract-after-collagen-copolymer-phakic-intraocular-lens-implantation-for-myopia-hyperopia-and-astigmatism
#19
José F Alfonso, Carlos Lisa, Luis Fernández-Vega, Dagoberto Almanzar, Cari Pérez-Vives, Robert Montés-Micó
PURPOSE: To evaluate the prevalence of cataract after Implantable Collamer Lens phakic intraocular lens (pIOL) implantation with different models at different ages and for different refractive powers. SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN: Retrospective nonrandomized clinical study. METHODS: The pIOL (models V4, V4b, or V4c) was implanted in all cases. RESULTS: The study included 3420 eyes (1898 patients)...
April 2015: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/25804582/prevention-and-management-of-collagen-copolymer-phakic-intraocular-lens-exchange-causes-and-surgical-techniques
#20
Qing-Yan Zeng, Xiu-Li Xie, Qian Chen
PURPOSE: To analyze causes leading to explantation and exchange of Implantable Collamer Lens phakic intraocular lenses (pIOLs) and examine the surgical techniques of pIOL exchange. SETTING: Wuhan Aier Eye Hospital, Wuhan, China. DESIGN: Retrospective analysis of prospectively collected data. METHODS: Different techniques were used to explant the pIOLs based on the amount of vaulting. Preoperative and postoperative data were collected to evaluate possible causes leading to pIOL exchange and the safety of pIOL exchange...
March 2015: Journal of Cataract and Refractive Surgery
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