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Intraocular lens

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https://www.readbyqxmd.com/read/28333853/multimodal-imaging-in-vortex-vein-varices
#1
Chiara Veronese, Giovanni Staurenghi, Marco Pellegrini, Chiara Maiolo, Laura Primavera, Mariachiara Morara, Grayson W Armstrong, Antonio P Ciardella
PURPOSE: The aim of this study is to describe the clinical presentation of vortex vein varices with multimodal imaging. METHODS: The authors carried out a retrospective case series of eight patients (7 female, 1 male) with an average age of 60.2 years (min 8, max 84, median 68.5) presenting with vortex vein varices. All patients were evaluated at the Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy and at Luigi Sacco Hospital, University of Milan, Milan, Italy...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28333852/re-intervention-in-de-novo-vitreous-opacities-after-pars-plana-vitrectomy-in-familial-amyloidotic-polyneuropathy-ttr-val30metportuguese-patients
#2
Natália Novais Ferreira, David Afonso Cunha Dias, Rui Pedro Afonso Carvalho, Maria Teresa Pardal Monteiro Coelho
PURPOSE: To report management of de novo vitreous amyloid opacities after previous pars plana vitrectomy in familial amyloidotic polyneuropathy transthyretin Val30Met. METHODS: This work is a retrospective observational consecutive case series of five eyes of four patients. Demographic data, transthyretin mutation involved, age at the beginning of disease, duration of disease, treatment (liver transplant or tafamidis), time between vitrectomy and re-intervention, and ophthalmologic changes were evaluated...
March 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28328997/influence-of-intraocular-lens-subsurface-nanoglistenings-on-functional-visual-acuity
#3
Takahiro Hiraoka, Kazunori Miyata, Takeshi Hayashidera, Masaharu Iida, Keita Takada, Keiichiro Minami, Tetsuro Oshika
To investigate the influence of intraocular lens subsurface nanoglistenings (SSNGs) on functional visual acuity (FVA), thirty-nine eyes of 29 patients were examined in this study. The SSNG group comprised 19 eyes of 14 patients (75.7± 5.4 years, mean ± standard deviation), and the control group comprised 20 eyes of 15 patients (73.6 ± 6.5 years). The SSNGs were diagnosed on the basis of the typical whitish IOL appearance upon slit-lamp examination and results of densitometry regarding surface light scattering using Scheimpflug images...
2017: PloS One
https://www.readbyqxmd.com/read/28328814/clinical-outcomes-of-new-toric-trifocal-diffractive-intraocular-lens-in-patients-with-cataract-and-stable-keratoconus-six-months-follow-up
#4
Doroodgar Farideh, Sanginabadi Azad, Niazi Feizollah, Niazi Sana, Alinia Cyrus, Ghoreishi Mohammad, Baradaran-Rafii Alireza
PURPOSE: To evaluate the clinical results of toric trifocal diffractive intraocular lens in eyes with cataract and mild keratoconus. METHODS: Five keratoconus patients (10 eyes) that had bilateral AT LISA 939 implantation were selected and had followed in 3-time horizons of 1, 3, and 6 months. Patients were 46 to 65 years old age, corneal astigmatism of (2.00 D at 6.75 D) and cataract that all of them needed cataract surgery. The distance, intermediate and near visual acuities, defocus curve, ocular aberrations, contrast sensitivity, were measured as effectiveness criteria...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28317685/cost-utility-analyses-of-cataract-surgery-in-vision-threatening-diabetic-retinopathy
#5
Bijun Zhu, Yingyan Ma, Haidong Zou
PURPOSE: To explore the cost utility of cataract surgery in patients with stabilized vision-threatening diabetic retinopathy (DR). SETTING: Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China. DESIGN: Prospective case series. METHODS: Patients diagnosed with cataracts combined with stabilized vision-threatening DR had successful phacoemulsification with foldable posterior chamber intraocular lens implantation...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317684/comparison-of-the-performance-and-safety-of-2-ophthalmic-viscosurgical-devices-in-cataract-surgery
#6
Gerd U Auffarth, Florian N Auerbach, Tanja Rabsilber, José A Gegúndez, Ricardo Cuiña, Yves Renard, Paolo Vinciguerra, Fabrizio Camesasca, Francoise Van Cauwenberge, Thierry Amzallag, Gysbert Van Setten, Mike P Holzer
PURPOSE: To compare the clinical performance and safety of 2 ophthalmic viscosurgical devices (OVDs)-Twinvisc (OVD 1) and Duovisc (OVD 2)-in cataract surgery. SETTING: European multicenter study. DESIGN: Prospective randomized controlled study. METHODS: Patients with cataract had phacoemulsification and intraocular lens implantation in 1 eye. They were randomly assigned to receive OVD 1 or OVD 2. Preoperative and postoperative examinations over 3 months included mean intraocular pressure (IOP), incidence of IOP peaks (≥30 mm Hg and ≥24 mm Hg), endothelial cell count (ECC), corneal thickness, and intraocular inflammation...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317682/intraocular-lens-scaffold-technique-to-prevent-posterior-capsule-rupture-in%C3%A2-cases%C3%A2-of-morgagnian-cataract
#7
Rohit Om Parkash, Shruti Mahajan, Tushya Om Parkash, Vittal Nayak
We describe a technique for performing safe phacoemulsification of a Morgagnian cataract using the intraocular lens (IOL) scaffold. An IOL scaffold has been used in cases in which posterior capsule rupture has occurred, leaving nonemulsified nuclear pieces. The scaffold provides a barrier that prevents the nuclear fragments from falling posteriorly into the vitreous cavity. Our technique uses the IOL as a scaffold to prevent the vulnerable posterior capsule from rupturing during nuclear emulsification in Morgagnian cataract...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317681/comparison-of-biometry-and-intraocular-lens-power-calculation-performed-by-a-new-optical-biometry-device-and-a-reference-biometer
#8
Bruna V Ventura, Marcelo C Ventura, Li Wang, Douglas D Koch, Mitchell P Weikert
PURPOSE: To compare biometry measurements and intraocular lens (IOL) power calculations obtained by a new optical A-scan interferometer biometer (Galilei G6) (new biometer) and a partial coherence interferometer biometer (IOLMaster 500) (reference biometer). SETTING: Private practice, Recife, Brazil. DESIGN: Retrospective comparative study. METHODS: Cataract patients who had biometric measurements with the new biometer and the reference biometer were included in the study...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317674/clinical-and-patient-reported-outcomes-of-bilateral-implantation-of-a-2-5-diopter-multifocal-intraocular-lens
#9
Andrew Maxwell, Edward Holland, Lisa Cibik, Anna Fakadej, Gary Foster, Les Grosinger, Andrew Moyes, Stephen Nielsen, Steven Silverstein, Melissa Toyos, Arthur Weinstein, Scott Hartzell
PURPOSE: To assess the effectiveness and safety of a multifocal intraocular lens (IOL) with +2.5 diopter (D) additional power compared with a monofocal IOL. SETTING: Fifteen sites in the United States. DESIGN: Prospective randomized patient- and observer-masked clinical trial. METHODS: Randomized patients received multifocal or monofocal IOLs bilaterally. Visual acuity (33 cm, 40 cm, 53 cm, 60 cm, 4 m) was measured; safety was assessed through adverse event rates...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28303988/cystoid-macular-oedema-after-phacoemulsification-with-and-without-type-2-diabetes-mellitus-a-hospital-based-clinical-prospective-trial-in-karachi
#10
Abdul Haleem, Adil Saleem, Saleh Memon, Nasir Memon, Muhammad Faisal Fahim
OBJECTIVE: To know the outcomes of cystoid macular oedema after phacoemulsification in patients with and without type 2 diabetes mellitus using optical coherence tomography. METHODS: This non-concurrent, clinical, prospective study was carried out at Al-Ibrahim Eye Hospital, Karachi, from January to August 2015. After phacoemulsification with injectable posterior chamber intraocular lens implantation, eyes of patients were analysed. The patients were divided into diabetic and non-diabetic groups visual acuity, optical coherence tomography and dilated fundus examination were performed preoperatively (baseline) and post-operative 1st week and 6th week...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28302249/opacification-of-a-hydrophilic-acrylic-intraocular-lens
#11
Yezhen Yang, Manqiang Peng, Yiqin Duan, Xuetao Huang, Kuanshu Li, Ding Lin
Opacification of a hydrophilic acrylic intraocular (IOL) lens is a rare phenomenon. We herein report a case of a 57-year man complaining of decreased vision at left eye for the last 4 months. He had undergone phacoemulsification with IOL implantation 2 years back. IOL opacification was observed through slit-lamp. IOL exchange was carried out. The exchanged IOL and a new lens of the same model were sent to laboratory for pathologic analysis. Confocal microscopy showed uniformly distributed granules from the surface to 80 µm internal surface...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28301341/novel-surgical-approach-for-fixation-of-a-posterior-chamber-intraocular-lens-using-gore-tex-suture
#12
Dimosthenis Mantopoulos, Caroline N Vloka, Scott J Halperin, Stuart N Green, Jonathan L Prenner
No abstract text is available yet for this article.
March 15, 2017: Retina
https://www.readbyqxmd.com/read/28300744/a-modified-simple-technique-of-removing-the-lens-cortex-during-cataract-surgery
#13
Kyung Eun Han, Se Hoon Han, Dongkwon Lim, Min Chul Shin
We describe here a surgical technique of removing the remaining cortex after phacoemulsification without performing the conventional irrigation/aspiration (I/A) procedure. In this technique, the remaining cortex attached to the posterior capsule was separated and dissected into several pieces by continuous irrigation with balanced salt solution, which was supplied through a syringe attached to a bent, blunt-tip needle. Approximately, 10 s of manual irrigation separated most of the remaining cortex from the posterior capsule...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28299005/preliminary-results-of-femtosecond-laser-assisted-cataract-surgery-in-a-private-clinic-in-iran
#14
Farhad Nejat, Sara Sarahati, Sahar Mojaled Nobari, Khosrow Jadidi, Mostafa Naderi, Mohammad Amin Nejat
PURPOSE: To report the preliminary results of femtosecond laser-assisted cataract surgery in Iranian patients. METHODS: This prospective case series included 21 eyes of 21 patients with cataract. Mean patient age was 66.7 ± 10 years. The patients underwent femtosecond-laser assisted cataract surgery (VICTUS Femtosecond Laser Platform: Bausch + Lomb) and intraocular lens (IOL) implementation in Bina Eye Hospital, Tehran, Iran between May and October, 2014. Visual outcomes, intraocular pressure (IOP), and complications were evaluated three months after surgery...
January 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28298709/prevalence-of-corneal-astigmatism-in-an-nhs-cataract-surgery-practice-in-northern-ireland
#15
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/28297161/photoreversibility-and-biocompatibility-of-polydimethylsiloxane-coumarin-as-adjustable-intraocular-lens-material
#16
Rachid Jellali, Virginie Bertrand, Michaël Alexandre, Nancy Rosière, Magda Grauwels, Marie-Claire De Pauw-Gillet, Christine Jérôme
Polydimethylsiloxane (PDMS) constitutes an interesting material for a variety of biomedical applications, especially as intraocular lenses (IOLs), for its excellent transparency. In this work, a photoreversible PDMS-coumarin network, whose shape and properties can be adjusted postoperatively in a noninvasive manner, is developed. The synthesis of PDMS-coumarin is achieved by amidation of a coumarin acid chloride derivative with amine-functionalized PDMSs. Under exposure of λ > 300 nm, these polymers can be cured by dimerization of coumarin...
March 15, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28297042/combination-surgery-with-transcorneal-microincision-vitrectomy-surgery-and-intrascleral-intraocular-lens-fixation-for-spontaneous-intraocular-lens-luxation
#17
Kenichi Kohzaki, Hisato Gunji, Hiroshi Tsuneoka
To present a combination technique for two cases of in-the-bag intraocular lens (IOL) luxation into the vitreous cavity. Vitrectomy was performed via a cornea microincision vitrectomy system, and the luxated IOL was fixed into the sclera. IOL fixation is simple from no trocar cannulas and less disrupted conjunctiva. Postoperative corneal endothelial cell density in Case 1 and Case 2 were reduced by -2.1% and -5.1%, respectively. Postoperative frequency of hexagon was decreased in Case 1 but maintained in Case 2...
March 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28296765/intermittent-pupillary-capture-of-intraocular-lens-after-transscleral-fixation-in-congenital-ectopia-lentis-patient-triggered-by-dark-environment-a-case-report
#18
Zhirong Wang, Qianzhong Cao, Guangming Jin, Charlotte Aimee Young, Yiyao Wang, Danying Zheng
RATIONALE: Although transscleral-fixated intraocular lens (IOL) implantation has been the most frequently chosen treatment for patients with inadequate capsule support, the ghost pupillary capture phenomenon did not cause enough attention. PATIENT CONCERNS: We present an unusual case withintermittent pupillary capture of intraocular lens. DIAGNOSIS: After 5 minutes staying in the dark environment, the pentacam examination revealed a mild nasal pupillary capture of the IOL...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28292776/comparison-of-corneal-endothelial-cell-density-and-morphology-after-posterior-chamber-phakic-intraocular-lens-implantation-with-and-without-a-central-hole
#19
Hiroyasu Goukon, Kazutaka Kamiya, Kimiya Shimizu, Akihito Igarashi
AIM: To compare the corneal endothelial cells after posterior chamber phakic intraocular lens with and without a central hole (hole implantable collamer lens (ICL) and conventional ICL) implantation for the correction of moderate to high myopia. METHODS: This retrospective study evaluated 34 eyes of 34 patients who underwent hole ICL implantation and 25 eyes of 25 patients who underwent conventional ICL implantation. Preoperatively and 3 months, and 1 and 2 years postoperatively, we compared the central corneal endothelial cell density (ECD), coefficient of variation in cell size (CV) and the percentage of hexagonal cells (HEX) between the two groups using a non-contact specular microscope (EM-3000, Tomey)...
March 14, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28291554/implantation-of-posterior-chamber-phakic-intraocular-lens-for-myopia-and-hyperopia%C3%A2-%C3%A2-long-term-clinical-outcomes
#20
H Kocová, E Vlková, L Michalcová, O Motyka
PURPOSE: To evaluate long-term refractive outcomes of implantable collamer lens (ICL) implantation and late postoperative complications. METHODS: We assessed outcomes of patients who underwent ICL implantation (type ICM V4 for myopia, ICH V3 for hyperopia, TICM V4 for astigmatism) in our department between 1998 and 2013. It comprised 62 eyes (40 myopic and 22 hyperopic). The average follow-up period was 10.5 years. We evaluated: uncorrected and best-corrected visual acuity (UCVA and BCVA), spherical equivalent (SE), ICL vault, endothelial cell density and late postoperative complications...
March 11, 2017: Journal Français D'ophtalmologie
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