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Cataract, intraocular lens

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https://www.readbyqxmd.com/read/27905333/effect-of-cataract-surgery-on-intraocular-pressure-in-supine-and-lateral-decubitus-body-postures
#1
Ji-Hye Park, Chungkwon Yoo, Jong-Suk Song, Shan C Lin, Yong Yeon Kim
PURPOSE: To investigate the effect of phacoemulsification on intraocular pressure (IOP) in different recumbent body postures including supine and lateral decubitus (LD) positions. MATERIALS AND METHODS: This prospective, observational study included patients who had no glaucoma and who had planned to undergo phacoemulsification and intraocular lens implantation in one eye. Before and 1 month after cataract surgery, IOP was measured in both eyes using the Tono-Pen AVIA...
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27899084/clinical-outcomes-of-a-new-diffractive-trifocal-intraocular-lens-with-enhanced-depth-of-focus-edof
#2
Banu Torun Acar, Erkan Duman, Saban Simsek
BACKGROUND: To evaluate the clinical outcomes after the implantation of a new trifocal diffractive intraocular lens (IOL) combined with Enhanced depth of focus (EDOF) technology. METHODS: The study enrolled 80 eyes of 40 patients who underwent cataract surgery with bilateral implantation of a diffractive trifocal IOL (Reviol Tri-ED) designed with a combination of enhanced depth of focus. Mean age was 52.09 ± 11.32 years (range from 45 to 70 years). Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected intermediate visual acuity (UIVA), corrected intermediate visual acuity (CIVA), uncorrected near visual acuity (UNVA), corrected near visual acuity (CNVA), keratometry (K), and manifest refraction spherical equivalent (MRSE) were evaluated pre- and postoperatively...
November 29, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27898449/modern-phacoemulsification-and-intraocular-lens-implantation-refractive-lens-exchange-is-safe-and-effective-in-treating-high-myopia
#3
Bhaskar Srinivasan, Hiu Ying Leung, He Cao, Shu Liu, Lizhen Chen, Alex Hoi Fan
Improved efficacy, predictability, and safety of modern phacoemulsification have resulted in cataract surgery being considered as a refractive procedure. Refractive lens exchange by definition is a surgery aimed at replacing the cataractous or clear crystalline lens with an intraocular lens (IOL) in cases of high ametropia. The excellent intraocular optics of this procedure provide a better visual outcome as compared with laser refractive surgery in high myopia. With advances in technology and IOL formulas, the predictability of refractive outcome after cataract surgery in high myopes has improved...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27893624/prospective-evaluation-of-a-sustained-release-dexamethasone-intravitreal-implant-for-cystoid-macular-edema-in-quiescent-uveitis
#4
Rahul N Khurana, Alok S Bansal, Louis K Chang, James D Palmer, Chengqing Wu, Mark R Wieland
PURPOSE: To investigate dexamethasone intravitreal implant (DEX implant; OZURDEX, Allergan, Inc) in the treatment of uveitic cystoid macular edema that had persisted in the absence of intraocular inflammation. METHODS: In this prospective interventional case series, 10 patients with uveitic cystoid macular edema and quiescent uveitis were treated with dexamethasone intravitreal implant at baseline and evaluated monthly for one year. Patients were retreated whenever cystoid macular edema recurred...
November 23, 2016: Retina
https://www.readbyqxmd.com/read/27881591/vernal-keratoconjunctivitis-culmination-of-management-using-immunosuppression-surgical-and-prosthetic-therapy-over-quarter-century
#5
Shilpa Das, Anand S Pasari, Virender S Sangwan
A 22-year-old male patient presented in 1988 with active vernal keratoconjunctivitis. He was treated with topical mast cell stabilisers and corticosteroids. Chronic inflammation despite topical treatment necessitated oral immunosuppressants. Active disease came under control with this; however, the patient gradually developed limbal stem cell deficiency. He underwent bilateral pannus resection with amniotic membrane transplantation that resulted in improved ocular surface. In 2007, patient was found to have significant bilateral posterior subcapsular cataracts and underwent bilateral cataract surgery with intraocular lens implantation with good visual outcome...
November 23, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27864880/preoperative-and-postoperative-measurements-of-retinal-vessel-oxygen-saturation-in-patients-with-different-grades-of-cataracts
#6
Hui Chen, Haotian Lin, Wan Chen, Bo Zhang, Wu Xiang, Qianying Gao, Weirong Chen, Yizhi Liu
PURPOSE: To assess the retinal vessel blood oxygen saturation preoperatively and postoperatively in patients with different grades of cataracts. METHODS: This study included 40 eyes from 40 patients with senile cataracts ranging from grade 1 to 3. All 40 eyes received standard phacoemulsification and intraocular lens implantation. The mean retinal arterial and venular oxygen saturation (SO2 ) levels were measured using the Oxymap system prior to, immediately after and 3 months after cataract surgery...
November 19, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27846894/corneal-power-evaluation-after-myopic-corneal-refractive-surgery-using-artificial-neural-networks
#7
Robert Koprowski, Michele Lanza, Carlo Irregolare
BACKGROUND: Efficacy and high availability of surgery techniques for refractive defect correction increase the number of patients who undergo to this type of surgery. Regardless of that, with increasing age, more and more patients must undergo cataract surgery. Accurate evaluation of corneal power is an extremely important element affecting the precision of intraocular lens (IOL) power calculation and errors in this procedure could affect quality of life of patients and satisfaction with the service provided...
November 15, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/27843291/a-new-endocapsular-open-ring-for-prevention-of-anterior-and-posterior-capsule-opacification
#8
Ioannis G Pallikaris, Nela R Stojanovic, Harilaos S Ginis
PURPOSE: The aim of this study is to demonstrate the functionality of a new design of a thick endocapsular open ring for prevention of anterior capsule opacification (ACO) and posterior capsule opacification (PCO). SETTING: The Institute of Vision and Optics, University of Crete and University Hospital of Heraklion, Crete, Greece. DESIGN: Prospective, interventional pilot study. METHODS: Fifteen patients (17 eyes) underwent cataract surgery with phacoemulsification...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27843290/vector-analysis-investigation-of-toric-intraocular-lens-with-no-deviation-from-the-intended-axis
#9
Atsushi Kawahara, Yoshinori Takayanagi
AIM: The aim of this research was to evaluate vector analysis after implantation of toric intraocular lenses (IOLs) without deviation from the intended axis. METHODS: The study included 18 eyes of 16 patients who underwent cataract surgery with the insertion of a toric implant (AcrySof IQ Toric). The postoperative IOL meridian placement completely corresponded to that planned. Using vector analysis, surgically induced astigmatism (SIA) was derived from the refractive outcome versus the predicted postoperative keratometric astigmatism and was compared with targeted induced astigmatism (TIA)...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27843285/clinical-outcomes-with-toric-intraocular-lenses-planned-using-an-optical-low-coherence-reflectometry-ocular-biometer-with-a-new-toric-calculator
#10
Kjell G Gundersen, Richard Potvin
PURPOSE: To prospectively evaluate postoperative clinical outcomes with implantation of toric intraocular lenses (IOLs) using preoperative keratometry from an optical low coherence reflectometry (OLCR) ocular biometer (Lenstar(®) LS900) and the built-in Barrett toric calculator. PATIENTS AND METHODS: A prospective observational study recruited one or both eyes of subjects who underwent uncomplicated cataract surgery with toric IOL implantation using OLCR biometery data and the Barrett toric IOL calculator for toric IOL planning...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27843234/progressive-keratoconus-retinal-detachment-and-intracorneal-silicone-oil-with-obsessive-compulsive-eye-rubbing
#11
Kartik Panikkar, George Manayath, Revathi Rajaraman, Veerappan Saravanan
An 18-year-old boy with an obsessive-compulsive disorder of eye rubbing presented with forme fruste keratoconus (KC) and posterior subcapsular cataracts. After evaluation, he underwent phacoemulsification in his left eye with intraocular lens implantation. The aggressive eye rubbing, however, aggravated the rapid progression to established KC, and further acute corneal hydrops within 3 months. Within the next 3 months, the eye rubbing precipitated rhegmatogenous retinal detachments (RDs) in both eyes. Furthermore, after undergoing a combined cataract and RD surgery with belt buckling and silicone oil endotamponade in his right eye, the repeated eye rubbing caused extrusion of the implanted silicone oil into the subconjunctival space and within the corneal stroma...
September 2016: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/27843229/a-comparative-study-of-various-topical-nonsteroidal-anti-inflammatory-drugs-to-steroid-drops-for-control-of-post-cataract-surgery-inflammation
#12
Anu Malik, Anup Sadafale, Yogesh Kumar Gupta, Alka Gupta
BACKGROUND: Postoperative inflammation continues to be a cause of patient discomfort, delayed recovery, and in some cases, suboptimal visual results. Topical nonsteroidal anti-inflammatory drugs (NSAIDs) and steroid are commonly used in the management and prevention of noninfectious ocular inflammation following cataract surgery. AIMS: The aim was to study the safety and efficacy of various NSAIDs drops for control of postoperative inflammation following cataract surgery and compare with steroid eye drops in a patient following cataract surgery...
September 2016: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/27834962/agreement-and-clinical-comparison-between-a-new-swept-source-optical-coherence-tomography-based-optical-biometer-and-an-optical-low-coherence-reflectometry-biometer
#13
P Arriola-Villalobos, J Almendral-Gómez, N Garzón, J Ruiz-Medrano, C Fernández-Pérez, J M Martínez-de-la-Casa, D Díaz-Valle
PurposeTo compare measurements taken using a swept-source optical coherence tomography-based optical biometer (IOLmaster 700) and an optical low-coherence reflectometry biometer (Lenstar 900), and to determine the clinical impacts of differences in their measurements on intraocular lens (IOL) power predictions.MethodsEighty eyes of 80 patients scheduled to undergo cataract surgery were examined with both biometers. The measurements made using each device were axial length (AL), central corneal thickness (CCT), aqueous depth (AQD), lens thickness (LT), mean keratometry (MK), white-to-white distance (WTW), and pupil diameter (PD)...
November 11, 2016: Eye
https://www.readbyqxmd.com/read/27833928/comparison-of-a-new-optical-biometer-and-a-standard-biometer-in-cataract-patients
#14
Pipat Kongsap
BACKGROUND: Cataract surgery is the most common surgical procedure in ophthalmology. Biometry data and accurate intraocular lens (IOL) calculations are very important in achieving the desired refractive outcomes. The aim of this study was to compare measurements using a new optical low coherence reflectometry (OLCR) biometer (OA-2000) and the gold standard partial coherence interferometry (PCI) optical biometer (IOLMaster 500). METHODS: Ocular biometry of cataract patients were measured by the OA-2000 and IOLMaster 500 to compare keratometry (K), axial length (AL), anterior chamber depth (ACD), white-to-white (WTW) diameter, and IOL power using the SRK/T formula...
2016: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/27830188/introduction-of-a-toric-intraocular-lens-to-a-non-refractive-cataract-practice-challenges-and-outcomes
#15
Clare Kirwan, John M Nolan, Jim Stack, Ian Dooley, Johnny Moore, Tara Cb Moore, Stephen Beatty
AIM: To identify challenges inherent in introducing a toric intraocular lens (IOL) to a non-refractive cataract practice, and evaluate residual astigmatism achieved and its impact on patient satisfaction. METHODS: Following introduction of a toric IOL to a cataract practice with all procedures undertaken by a single, non-refractive, surgeon (SB), pre-operative, intra-operative and post-operative data was analysed. Attenuation of anticipated post-operative astigmatism was examined, and subjectively perceived visual functioning was assessed using validated questionnaires...
May 25, 2016: International Journal of Ophthalmology and Clinical Research
https://www.readbyqxmd.com/read/27829389/chronic-post-operative-iris-prosthesis-endophthalmitis-in-a-patient-with-traumatic-aniridia-a-case-report
#16
Kevin C Firl, Sandra R Montezuma
BACKGROUND: Post-operative endophthalmitis is a serious complication of intraocular surgery which may present acutely or chronically. Chronic post-operative endophthalmitis is characterized by decreased visual acuity, mild pain, and low-grade uveitis several weeks or months after intraocular surgery which may be responsive to corticosteroids, but recur upon tapering. Low virulence organisms such as Propionibacterium acnes are the most common culprit organisms, and treatment most often consists of both intravitreal antibiotic injections and surgery...
November 9, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27828894/rotationally-asymmetric-multifocal-intraocular-lenses-preoperative-considerations-and-postoperative-outcomes
#17
Jonathan E Moore, Richard N McNeely, Eric E Pazo, Tara C B Moore
PURPOSE OF REVIEW: The manuscript presents a review of recently published studies reporting objective and subjective outcomes and preoperative considerations of asymmetrical multifocal intraocular lenses (IOLs). RECENT FINDINGS: Current publications suggest that asymmetrical multifocal IOLs provide good, distance, intermediate and near vision for cataract and clear lens extraction patients. The contrast sensitivity achieved is similar to monofocal IOLs. Photopic phenomenon such as glare and halos has been reduced through the use of these IOLs leading to better patient satisfaction...
January 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27828392/voltage-controlled-accommodating-iol-system-using-an-ion-polymer-metal-composite-actuator
#18
Tetsuya Horiuchi, Toshifumi Mihashi, Takashi Fujikado, Tetsuro Oshika, Kinji Asaka
Surgeons treat cataracts by replacing the clouded lens with an intraocular lens (IOL), but patients are required to wear reading glasses for tasks requiring near vision. We suggest a new voltage-controlled accommodating IOL made of an ionic polymer metal composite (IPMC) actuator to change focus. An in vitro experiment was conducted where an actuator was placed inside the eye and moved with applied voltage. The lens attached to the actuator was deformed by its movement to change the patient's focus. The results showed that this system can accommodate a change of approximately 0...
October 3, 2016: Optics Express
https://www.readbyqxmd.com/read/27824377/visual-performance-in-the-long-term-with-secondary-add-on-versus-primary-capsular-bag-multifocal-intraocular-lenses
#19
Jens Schrecker, Achim Langenbucher
PURPOSE: To compare the long-term results of a secondary sulcus-placed, multifocal add-on intraocular lens (IOL) with those of a multifocal IOL implanted in the capsular bag. METHODS: In this prospective clinical trial, 30 pseudophakic eyes were treated with a multifocal add-on IOL and 30 cataractous eyes with a standard multifocal IOL. The main outcome measures comprised manifest refraction, visual acuity, defocus curves, and contrast sensitivity. Patients who had bilateral implantation of the same lens type were asked to complete a questionnaire...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27820748/triple-procedure-cataract-extraction-intraocular-lens-implantation-and-corneal-graft
#20
Yoshinori Oie, Kohji Nishida
PURPOSE OF REVIEW: Corneal triple procedures consist of combined keratoplasty surgery and cataract surgery. Currently, anterior lamellar keratoplasty, endothelial keratoplasty, and conventional penetrating keratoplasty, are very often simultaneously performed with cataract surgery. The present article reviews the recent advances and current developments in corneal triple procedures. RECENT FINDINGS: Many new findings have been reported. Core vitrectomy before host trephination and retroillumination during continuous curvilinear capsulorhexis has enabled us to perform penetrating keratoplasty triple procedures more safely...
January 2017: Current Opinion in Ophthalmology
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