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cataract and refractive surgery

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https://www.readbyqxmd.com/read/28526552/anisometropia-at-age-5-years-after-unilateral-intraocular-lens-implantation-during-infancy-in-the-infant-aphakia-treatment-study-iats
#1
David Weakley, George Cotsonis, M Edward Wilson, David A Plager, Edward G Buckley, Scott R Lambert
PURPOSE: To report the prevalence of anisometropia at age 5 years after unilateral intraocular lens (IOL) implantation in infants. DESIGN: Prospective randomized clinical trial METHODS: Fifty-seven infants in the Infant Aphakia Treatment Study (IATS) with a unilateral cataract were randomized to IOL implantation with an initial targeted postoperative refractive error of either +8D (infants 28 to <48 days of age) or +6D (infants 48-210 days of age). Anisometropia was calculated at age 5 years...
May 16, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28491472/the-effect-of-corneal-refractive-surgery-on-glaucoma
#2
REVIEW
Vassilios Kozobolis, Aristeidis Konstantinidis, Haris Sideroudi, G Labiris
Laser-assisted refractive procedures have become very popular in the last two decades. As a result, a "generation" of patients with altered corneal properties is emerging. These patients will require both cataract extraction and glaucoma follow-up in the future. Since the glaucoma examination largely depends on the corneal properties, the reshaped postrefractive surgery cornea poses a challenge in the diagnosis, follow-up, and management of the glaucomatous patient. In order to overcome this problem, every patient who is planned to undergo corneal refractive surgery must have a thorough glaucoma examination in order for the ophthalmologist to be able to monitor their patients for possible glaucoma development and/or progression...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28476316/aberration-free-intraocular-lenses-what-does-this-really-mean
#3
Achim Langenbucher, Simon Schröder, Alan Cayless, Timo Eppig
BACKGROUND: So-called aberration-free intraocular lenses (IOLs) are well established in modern cataract surgery. Usually, they are designed to perfectly refract a collimated light beam onto the focal point. METHODS: We show how much aberration can be expected with such an IOL in a convergent light beam such as that found anterior to the human cornea. Additionally, the aberration in a collimated beam is estimated for an IOL that has no aberrations in the convergent beam...
May 3, 2017: Zeitschrift Für Medizinische Physik
https://www.readbyqxmd.com/read/28464806/the-effect-of-ocular-biometric-factors-on-the-accuracy-of-various-iol-power-calculation-formulas
#4
Jinho Jeong, Han Song, Jimmy K Lee, Roy S Chuck, Ji-Won Kwon
BACKGROUND: To evaluate how differences in ocular biometry affects the Hoffer Q, Holladay 1, SRK/T, and Haigis intraocular lens power calculation formulae predictions. METHODS: This study was performed on 91 eyes of 91 patients who underwent uneventful cataract surgery. Ocular biometry values were measured using the IOL Master 500, and intraocular lens (IOL) power was calculated using the Haigis, Hoffer Q, Holladay 1, and SRK/T formulas. We calculated the expected difference (ED) of each 3rd generation formula from the Haigis formula by subtracting the predicted refraction of the Haigis formula from the predicted refraction of each 3rd generation formula...
May 2, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28457282/outcomes-after-implantable-collamer-lens-surgery-in-a-canadian-cohort
#5
Aaron T Chan, Noa A Zauberman, Clara C Chan, David S Rootman
OBJECTIVE: To describe refractive outcomes and complications after implantable collamer lens (ICL) implantation. DESIGN: Retrospective, interventional case series. METHODS: A database search of ICL surgeries over a 5-year period (2009-2013) was conducted, and 83 eyes of 44 patients were included. The Visian ICL (STAAR Surgical, Monrovia, Calif.) was used in all eyes. The primary outcome measure was postoperative uncorrected distance acuity (UCDA)...
April 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28438415/immediate-sequential-vs-delayed-sequential-bilateral-cataract-surgery-retrospective-comparison-of-postoperative-visual-outcomes
#6
Lisa J Herrinton, Liyan Liu, Stacey Alexeeff, James Carolan, Neal H Shorstein
OBJECTIVE: We conducted a retrospective comparative-effectiveness study of best-corrected visual acuity (BCVA) and refractive error (RE) after immediate sequential (ISBCS) and delayed sequential (DSBCS) bilateral cataract surgery. We tested 2 hypotheses: (1) among DSBCS patients, second-eye outcomes were no different than first-eye outcomes; (2) averaged between each patient's 2 eyes, outcomes did not differ between ISBCS and DSBCS patients. DESIGN: Retrospective comparative-effectiveness study...
April 21, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28422087/clinical-comparison-of-patient-outcomes-following-implantation-of-trifocal-or-bifocal-intraocular-lenses-a-systematic-review-and-meta-analysis
#7
Zeren Shen, Yuchen Lin, Yanan Zhu, Xin Liu, Jie Yan, Ke Yao
To assess the visual effects of trifocal intraocular lenses (IOLs) compared to bifocal IOLs in cataract surgery, a meta-analysis of prospective comparative clinical trials (including 4 randomized controlled trials and 4 cohorts) was conducted. The defocus curves showed a better distance-corrected intermediate visual acuity (VA) for the trifocal group (MD -0.07; 95% CI, -0.10 to -0.05; p < 0.00001), while the VA outcomes showed no significant difference in distance VA (MD -0.03; 95% CI, -0.06 to 0.01; p = 0...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28412798/-intraocular-lens-power-calculation-for-high-myopic-eyes-with-cataract-comparison-of-three-formulas
#8
X J Zhu, W W He, Y Du, D J Qian, J H Dai, Y Lu
Objective: To compare the accuracy of three different formulas for intraocular lens power calculation in high myopic eyes with cataract and analyze their influencial factors. Methods: One hundred and three high myopic patients of cataract (103 eyes), with average age of 60.2±8.8 years old (39.0-77.0), including 45 male and 54 female and with axial length ≥ 26 mm were enrolled in this retrospective case-series study. All of them underwent routine ocular examination and IOLMastermeasurement preoperatively and then underwent phacoemulsification through temporal clear-corneal incision with implantation of HumanOptic posterior chamber Intraocular lens (IOL)...
April 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28410726/surgical-techniques-and-adjuvants-for-the-management-of-primary-and-recurrent-pterygia
#9
REVIEW
John A Hovanesian, Christopher E Starr, David T Vroman, Francis S Mah, Jose A P Gomes, Marjan Farid, Neda Shamie, Richard S Davidson, Thomas John, Edward J Holland, Terry Kim
The removal and rate of recurrence of pterygium have been discussed for years. The disorder is highly associated with environmental factors, and recurrence rates can be unacceptably high and cannot be successfully predicted. New techniques and graft preparations and postoperative management strategies are helping to reduce the recurrence rates and provide an ocular surface that is near ideal for future cataract or refractive surgery. This review discusses the advantages and disadvantages of various treatment strategies...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410715/comparison-of-astigmatic-prediction-errors-associated-with-new-calculation-methods-for-toric-intraocular-lenses
#10
Tiago B Ferreira, Paulo Ribeiro, Filomena J Ribeiro, João G O'Neill
PURPOSE: To compare the prediction errors in residual astigmatism associated with new calculation methods for toric intraocular lenses (IOLs). SETTING: Hospital da Luz, Lisbon, Portugal. DESIGN: Retrospective case series. METHODS: In eyes having cataract surgery with toric IOL implantation (Acrysof IQ), the predicted residual astigmatism by each calculation method was compared with the manifest refractive astigmatism...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410714/accuracy-of-3-new-methods-for-intraocular-lens-power-selection
#11
Jack X Kane, Anton Van Heerden, Alp Atik, Constantinos Petsoglou
PURPOSE: To evaluate the accuracy of 3 new methods for intraocular lens (IOL) power selection (Hill-Radial Basis Function [Hill-RBF] method, FullMonte method, and the Ladas Super Formula) compared with that of the Holladay 1 and Barrett Universal II formulas. SETTING: Ophthalmology Department, Alfred Hospital, Melbourne, Australia. DESIGN: Retrospective case series. METHODS: Patients who had uneventful cataract surgery with insertion of the Acrysof IQ SN60WF IOL over 5 years were included in the study...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28407163/effect-of-topical-nonsteroidal-anti-inflammatory-drugs-on-pupillary-size-during-uncomplicated-cataract-surgery
#12
Alejandro Rodríguez-García, Julio C Hernández-Camarena, Gilberto R López-Jaime, José A Nava-García
PURPOSE: To compare the effectiveness of three different topical nonsteroidal anti-inflammatory drugs (NSAIDs) in inhibiting surgically induced miosis during uncomplicated cataract phacoemulsification. METHODS: Prospective, randomized, double-masked comparative study of patients aged 40 years or older with grades II to III cataracts (Lens Opacities Classification System) and no other comorbidities. Participants were randomized into four groups: 0.1% nepafenac, 0...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407162/effects-of-short-term-preoperative-topical-ketorolac-on-pupil-diameter-in-eyes-undergoing-femtosecond-laser-assisted-capsulotomy
#13
Vasilios F Diakonis, Georgios A Kontadakis, Apostolos G Anagnostopoulos, Nilufer Yesilirmak, Daniel P Waren, Florence Cabot, Sonia H Yoo, Kendall E Donaldson
PURPOSE: To assess pupil diameter before and after femtosecond laser-assisted capsulotomy in patients who were pretreated with a short-term topical nonsteroidal anti-inflammatory drug (NSAID) (ketorolac) versus those without pretreatment. METHODS: This prospective, randomized, observational case series included consecutive patients scheduled to undergo cataract extraction using the Catalys femtosecond laser platform (Abbott Medical Optics, Inc., Santa Ana, CA) to perform only capsulotomies...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28404521/diabetic-complications-in-the-cornea
#14
Alexander V Ljubimov
Diabetic corneal alterations, such as delayed epithelial wound healing, edema, recurrent erosions, neuropathy/loss of sensitivity, and tear film changes are frequent but underdiagnosed complications of both type 1 (insulin-dependent) and type 2 (non-insulin-dependent) diabetes mellitus. The disease affects corneal epithelium, corneal nerves, tear film, and to a lesser extent, endothelium, and also conjunctiva. These abnormalities may appear or become exacerbated following trauma, as well as various surgeries including retinal, cataract or refractive...
April 9, 2017: Vision Research
https://www.readbyqxmd.com/read/28399068/descemet-membrane-endothelial-keratoplasty-and-refractive-surgery
#15
C Maya Tong, Lamis Baydoun, Gerrit R J Melles
PURPOSE OF REVIEW: Descemet membrane endothelial keratoplasty (DMEK) has become a first-line treatment in corneal endothelial diseases because of its exceptional clinical outcomes and low complication rates. Because of its improved refractive predictability, DMEK is now also considered for managing cases with endothelial decompensation following previous refractive procedures, or in combination with those. This article reviews the clinical outcomes in these cases and discusses the possibility of refractive interventions following DMEK...
April 8, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28396877/visual-and-refractive-outcomes-following-implantation-of-a-new-trifocal-intraocular-lens
#16
Michael Lawless, Chris Hodge, Joe Reich, Lewis Levitz, Uday K Bhatt, Colm McAlinden, Kate Roberts, Timothy V Roberts
BACKGROUND: Independence from all optical aids, and freedom from unwanted symptoms, following cataract and lens surgery remains the ultimate goal of both patient and surgeon. The development of trifocal IOL technology provides an ever-increasing range of options. The purpose of our study is to understand the predictability, safety and efficacy of a new trifocal intraocular lens (IOL) following cataract or refractive lens exchange (RLE) surgery. METHODS: This was a retrospective consecutive case series of patients undergoing cataract extraction or RLE followed by implantation of the Alcon IQ Panoptix IOL...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28380649/-clinical-comparison-of-a-trifocal-and-a-trifocal-toric-intraocular-lens-based-on-the-same-diffractive-platform
#17
M Gerl, D R H Breyer, P Hagen, M J Koss, M Mueller, M Al Saad, R H Gerl, H Kaymak, K Klabe, F T A Kretz
Purpose To evaluate and compare the visual performance of a trifocal and a trifocal-toric intraocular lens (IOL) based on the same diffractive platform. Methods Prospective non-randomized comparative study enrolling 142 eyes of 77 patients (age 40-73 years) undergoing uneventful phacoemulsification lens surgery. Two groups were differentiated according to the implanted IOL: trifocal group, 98 eyes (50 patients) implanted with the trifocal diffractive IOL AT LISA tri 839MP (Carl Zeiss Meditec), and trifocal-toric group, 44 eyes (27 patients) implanted with the trifocal-toric diffractive IOL AT LISA trifocal-toric 939MP (Carl Zeiss Meditec)...
April 5, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28366374/sequential-intrastromal-corneal-ring-segment-and-monofocal-intraocular-lens-implantation-for-keratoconus-and-cataract-long-term-follow-up
#18
José F Alfonso, Carlos Lisa, Luis Fernández-Vega Cueto, Arancha Poo-López, David Madrid-Costa, Luis Fernández-Vega
PURPOSE: To evaluate the efficacy, safety, predictability, and stability of sequential Ferrara intrastromal corneal ring segment (ICRS) and intraocular lens (IOL) implantation in patients with keratoconus and cataract. SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN: Retrospective case series. METHODS: This study comprised patients with keratoconus and cataract who had ICRS implantation followed 6 months later by IOL implantation...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28366372/rotational-stability-of-2-intraocular-lenses-with-an-identical-design-and-different-materials
#19
Petra Draschl, Nino Hirnschall, Nikolaus Luft, Sandra Schuschitz, Jörg Wiesinger, Karl Rigal, Oliver Findl
PURPOSE: To evaluate the rotational stability of nontoric intraocular lenses (IOLs) of the same design and different materials. SETTING: Vienna Institute for Research in Ocular Surgery, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria. DESIGN: Prospective randomized case series. METHODS: This study included cataract patients with a corneal astigmatism of less than 1.75 diopters measured with the IOLMaster 500...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28366366/clinical-and-biometric-determinants-of-actual-lens-position-after-cataract-surgery
#20
Julien Plat, Didier Hoa, Frederic Mura, Timothe Busetto, Christelle Schneider, Arnaud Payerols, Max Villain, Vincent Daien
PURPOSE: To evaluate the preoperative clinical and biometric determinants associated with the actual lens position after cataract surgery. SETTING: Department of Ophthalmology, University Hospital of Montpellier, France. DESIGN: Prospective longitudinal cohort study. METHODS: The data collected included clinical factors (age, sex, history of vitrectomy) and biometry factors (axial length [AL], anterior chamber depth [ACD], lens thickness, white-to-white [WTW] distance) that might affect actual lens position...
February 2017: Journal of Cataract and Refractive Surgery
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