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cataract and refractive surgery

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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
#1
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/28301497/long-term-outcomes-of-ciliary-sulcus-versus-capsular-bag-fixation-of-intraocular-lenses-in-children-an-ultrasound-biomicroscopy-study
#2
Yun-E Zhao, Xian-Hui Gong, Xue-Ning Zhu, He-Ming Li, Meng-Jun Tu, Terry G Coursey, Stephen C Pflugfelder, Feng Gu, Ding Chen
PURPOSE: To evaluate the long-term outcomes of ciliary sulcus versus capsular bag fixation of intraocular lenses (IOLs) in children after pediatric cataract surgery. METHODS: IOL was implanted in the ciliary sulcus in 21 eyes of 14 children, and in the capsular bag in 19 eyes of 12 children for the treatment of pediatric cataract in an institutional setting. Ultrasound biomicroscopy (UBM) was performed. Main outcome measures included IOL decentration, IOL tilt, anterior chamber depth (ACD), angle-opening distance at 500 μm (AOD500), trabecular-iris angle (TIA), best-corrected visual acuity (BCVA), intraocular pressure (IOP), and incidence of postoperative complications...
2017: PloS One
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
#3
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
https://www.readbyqxmd.com/read/28291195/-optic-nerve-pathology-in-the-structure-of-diagnostic-errors-inpatients-referred-for-cataract-surgery
#4
V V Egorov, N V Savchenko, E L Sorokin, O V Danilov
AIM: to study the frequency of misdiagnosis of cataract in patients with optic nerve pathology or amblyopia and to identify its main causes. MATERIAL AND METHODS: The study enrolled 381 patients (381 eyes) wrongly diagnosed with cataract. A standard set of eye tests was performed. In-depth examination of the macular area was done through biomicroscopy with contactless aspheric lenses of 60 and 90 D. Part of the patients underwent optical coherence tomography and static perimetry as well as examination of electrical sensitivity threshold and electrical lability of the optic nerve...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28273986/a-comparative-study-to-assess-the-predictability-of-different-iol-power-calculation-formulas-in-eyes-of-short-and-long-axial-length
#5
Dharmil Doshi, Purvi Limdi, Nilesh Parekh, Neepa Gohil
INTRODUCTION: Accurate Intraocular Lens (IOL) power calculation in cataract surgery is very important for providing postoperative precise vision. Selection of most appropriate formula is difficult in high myopic and hypermetropic patients. AIM: To investigate the predictability of different IOL (Intra Ocular Lens) power calculation formulae in eyes with short and long Axial Length (AL) and to find out most accurate IOL power calculation formula in both groups. MATERIALS AND METHODS: A prospective study was conducted on 80 consecutive patients who underwent phacoemulsification with monofocal IOL implantation after obtaining an informed and written consent...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28251083/predictive-factors-for-photic-phenomena-after-refractive-rotationally-asymmetric-multifocal-intraocular-lens-implantation
#6
Hungwon Tchah, Kiyeun Nam, Aeri Yoo
AIM: To investigate the independent factors associated with photic phenomena in patients implanted with refractive, rotationally asymmetric, multifocal intraocular lenses (MIOLs). METHODS: Thirty-four eyes of 34 patients who underwent unilateral cataract surgery, followed by implantation of rotationally asymmetric MIOLs were included. Distance and near visual acuity outcomes, intraocular aberrations, preferred reading distances, preoperative and postoperative refractive errors, mesopic and photopic pupil diameters, and the mesopic and photopic kappa angles were assessed...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28245346/n-acetylcarnosine-nac-drops-for-age-related-cataract
#7
REVIEW
Vincent Dj-P Dubois, Andrew Bastawrous
BACKGROUND: Cataract is the leading cause of world blindness. The only available treatment for cataract is surgery. Surgery requires highly-trained individuals with expensive operating facilities. Where these are not available, patients go untreated. A form of treatment that did not involve surgery would be a useful alternative for people with symptomatic cataract who are unable or unwilling to undergo surgery. If an eye drop existed that could reverse or even prevent progression of cataract, then this would be a useful additional treatment option...
February 28, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28231267/accuracy-of-optical-biometry-combined-with-placido-disc-corneal-topography-for-intraocular-lens-power-calculation
#8
Giacomo Savini, Kenneth J Hoffer, Piero Barboni, Nicole Balducci, Domenico Schiano-Lomoriello, Pietro Ducoli
PURPOSE: To investigate the accuracy of a new optical biometer for intraocular lens (IOL) power calculation in eyes undergoing cataract surgery. METHODS: Consecutive eyes of patients undergoing cataract surgery with the same IOL model were enrolled in a prospective cohort study. Axial length (AL) and corneal power were measured with an optical biometer based on optical low-coherence interferometry and Placido-disc corneal topography. IOL power was calculated with the Hoffer Q, Holladay 1 and SRK/T formulas...
2017: PloS One
https://www.readbyqxmd.com/read/28215452/myopic-shift-5-years-after-intraocular-lens-implantation-in-the-infant-aphakia-treatment-study
#9
David R Weakley, Michael J Lynn, Lindreth Dubois, George Cotsonis, M Edward Wilson, Edward G Buckley, David A Plager, Scott R Lambert
PURPOSE: To report the myopic shift at 5 years of age after cataract surgery with intraocular lens (IOL) implantation for infants enrolled in the Infant Aphakia Treatment Study (IATS). METHODS: Refractions were performed at 1 month and every 3 months postoperatively until age 4 years and then at ages 4.25, 4.5, and 5 years. The change in refraction over time was estimated by linear mixed model analysis. RESULTS: Intraocular lens implantation was completed in 56 eyes; 43 were analyzed (median age, 2...
February 16, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28211177/visual-impairment-in-older-institutionalised-canadian-seniors-with-dementia
#10
Estefania Chriqui, Caroline Law, Marie-Jeanne Kergoat, Bernard-Simon Leclerc, Hélène Kergoat
PURPOSE: To estimate the prevalence of visual impairment (VI) in a sub-population of Canadian long-term care facilities, i.e. residents affected by dementia. METHODS: This study was conducted in the long-term care facility units at the Institut universitaire de gériatrie de Montréal. All residents ≥65 years old (y.o.), having a clinical diagnosis of dementia, and able to understand French or English, were eligible for participation in the study. All residents participating in the study received a complete eye exam by an experienced optometrist...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28210183/intraocular-lens-power-overestimation-in-a-patient-with-history-of-circling-keratorraphy
#11
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/28196497/comparison-of-visual-outcomes-spectacles-dependence-and-patient-satisfaction-of-multifocal-and-accommodative-intraocular-lenses-innovative-perspectives-for-maximal-refractive-oriented-cataract-surgery
#12
COMPARATIVE STUDY
Raffaele Nuzzi, Federico Tridico
BACKGROUND: The aim of this study was to evaluate visual outcomes for different working distances (far, 60 cm and 33 cm) and impact on vision quality of multifocal IOLs AcrySof ResTOR SN6AD1 and SN6AD3 (Alcon, Inc., Fort Worth, Texas, USA) as well as REVIEW FIL611PV multifocal and OPTOFLEX FIL618 accommodative IOLs (Soleko, Ltd., Rome, Italy) in patients undergoing bilateral phacoemulsification. METHODS: In this observational prospective study 63 patients undergoing binocular cataract surgery were divided into four groups for implantation of one of the IOLs under evaluation...
February 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28192591/lasik-enhancement-clinical-and-surgical-management
#13
Majid Moshirfar, Naz Jehangir, Carlton R Fenzl, Michael McCaughey
PURPOSE: To review refractive regression and current therapeutic options for patients who have residual refractive error after LASIK. METHODS: An extensive literature search using PubMed was performed for terms such as "LASIK," "PRK," "enhancement," "overcorrection," "undercorrection," "re-lift," "mini-flap," and related terms. RESULTS: The presence of residual refractive error following LASIK is a challenging situation. After excluding anatomical causes (eg, ocular surface disease, cataract, and macular pathology) and intraoperative flap complications, evaluation of the residual stromal bed must be performed...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192584/laser-assisted-capsulotomy-centration-a-prospective-trial-comparing-pupil-versus-oct-based-scanned-capsule-centration
#14
Tim Schultz, Nikolaos Tsiampalis, H Burkhard Dick
PURPOSE: To investigate different capsulotomy centration methods for femtosecond laser-assisted cataract surgery. The overlap between intraocular lens (IOL) optic and lens capsule was measured with different centration methods and IOL types. METHODS: This was a prospective randomized clinical trial. Patients with cataract scheduled for femtosecond laser-assisted cataract surgery were assigned to one of four treatment groups: optical coherence tomography (OCT)-based scanned capsule centration (SCC) and three-piece IOL (SCC with three-piece IOL); scanned capsule centration and plate-haptic IOL (SCC with plate-haptic IOL); pupil centration (PC) and three-piece IOL (PC with three-piece IOL); or PC and plate-haptic IOL (PC with plate-haptic IOL)...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28188490/a-review-of-laser-assisted-versus-traditional-phacoemulsification-cataract-surgery
#15
REVIEW
H Burkhard Dick, Tim Schultz
The use of femtosecond laser surgery improves the precision and reproducibility of corneal incisions and the capsular opening; it also reduces the amount of ultrasound energy required for lens nucleus work-up. The rate of complications reported so far appears to be low. There are a number of contraindications such as a history of cornea and/or glaucoma surgery and certain anatomical features like deep-set eyes, kyphosis, tremor, and obesity. Visual recovery and refractive results of both techniques are excellent...
February 10, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28187472/-epi-bowman-keratectomy-clinical-evaluation-of-a-new-method-of-surface-ablation
#16
S Taneri, S Kießler, A Rost, T Schultz, M Elling, B Dick
Purpose A new device for epithelial abrasion before excimer laser surface ablation or corneal cross-linking (CXL) has recently been introduced (Epi-Clear™, Orca Surgical, Kiryat-Shmona, Israel). We have reviewed the literature on the clinical results, potential benefits and drawbacks of this instrument, compared to other methods of epithelial removal. Method Literature search for "Epi-Bowman Keratectomy", "Epi-clear", and "Epikeratome" yielded 1 peer-review publication, 1 non-peer-review publication, 18 posters and presentations at international conferences (European Society of Cataract and Refractive Surgeons [ESCRS] and American Society of Cataract and Refractive Surgery [ASCRS]) on the use of the Epi-Clear™ device before surface ablation, 2 posters on the use of Epi-Clear before corneal crosslinking and 1 presentation on the experimental use of Epi-Clear for removal of a pterygium...
February 10, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28178925/torsional-and-flattening-effect-on-corneal-astigmatism-after-cataract-surgery-a-retrospective-analysis
#17
Yuli Park, Hyun Seung Kim
BACKGROUND: To evaluate the torsional and flattening effect of steep meridian incisions and influence of posterior corneal astigmatism (PCA) on total corneal astigmatism (TCA) after cataract surgery. METHODS: One hundred thirty-two eyes underwent cataract surgery with steep meridian 2.2 mm microcoaxial and 2.85 mm conventional clear corneal incisions. Eyes were divided into with-the-rule (WTR) astigmatism and against-the-rule (ATR) astigmatism groups depending on the steeper meridian and measured with autokeratorefractor and Pentacam® before surgery, at 1 day, 1 week, 1 and 2 months postoperatively...
February 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28176960/pseudophakic-astigmatism-reduction-with-femtosecond-laser-assisted-corneal-arcuate-incisions-a-pilot-study
#18
Clayton Blehm, Richard Potvin
PURPOSE: The aim of this study was to assess the effectiveness of the Verion-LenSx guided arcuate incision technique to reduce refractive astigmatism in a pseudophakic population. PATIENTS AND METHODS: A prospective single-arm study was conducted in which one or both eyes of subjects required reduction of 1.0-2.0 D of refractive astigmatism after previous cataract surgery or refractive lens exchange. The surgeon used the refractive cylinder in the eye and the Woodcock astigmatism nomogram for preoperative planning, while the LenSx femtosecond laser with the Verion Image Guided System was used to create all arcuate incisions...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28165609/comparison-of-visual-outcomes-after-bilateral-implantation-of-extended-range-of-vision-and-trifocal-intraocular-lenses
#19
Ramón Ruiz-Mesa, Antonio Abengózar-Vela, Ana Aramburu, María Ruiz-Santos
PURPOSE: To compare visual outcomes after cataract surgery with bilateral implantation of 2 intraocular lenses (IOLs): extended range of vision and trifocal. METHODS: Each group of this prospective study comprised 40 eyes (20 patients). Phacoemulsification followed by bilateral implantation of a FineVision IOL (group 1) or a Symfony IOL (group 2) was performed. The following outcomes were assessed up to 1 year postoperatively: binocular uncorrected distance visual acuity (UDVA), binocular uncorrected intermediate visual acuity (UIVA) at 60 cm, binocular uncorrected near visual acuity (UNVA) at 40 cm, spherical equivalent (SE) refraction, defocus curves, mesopic and photopic contrast sensitivity, halometry, posterior capsule opacification (PCO), and responses to a patient questionnaire...
January 28, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28144750/outcomes-of-femtosecond-laser-assisted-cataract-surgery-performed-by-surgeons-in-training
#20
Greg Brunin, Khurrum Khan, Kristin S Biggerstaff, Li Wang, Douglas D Koch, Sumitra S Khandelwal
PURPOSE: To compare intraoperative factors and post-operative outcomes of femtosecond laser-assisted cataract surgery (FLACS) and manual cataract surgery performed by resident surgeons. METHODS: All cases of FLACS performed by resident surgeons during the 2013-2014 academic year were compared to a control group of manual cataract surgery cases with regards to pre-operative patient data, operative complications, cumulative dissipated energy (CDE), postoperative corrected distance visual acuity (CDVA), refractive prediction error (RPE), and corneal edema...
January 31, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
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