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https://www.readbyqxmd.com/read/29217455/a-new-method-to-analyse-the-effect-of-multifocal-contact-lenses-on-visual-function
#1
I Sanchez, S Ortiz-Toquero, M Blanco, R Martin
PURPOSE: Presbyopic contact lens (CL) fittings produce simultaneous vision, providing different retinal images that reduce visual quality and wearers' satisfaction. The purpose of this study was to develop a new method to isolate the multifocality effect of different CL options to manage presbyopia, analysing the impact on binocular visual acuity (VA), stereopsis and contrast sensitivity (CS) and determining the effect of the use of a yellow filter (YF) on visual function. METHODS: A prospective and double-masked randomized pilot study involving 20 healthy volunteers was conducted...
December 4, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29207744/awareness-of-presbyopia-among-rural-female-population-in-north-karnataka
#2
Charushila V Gajapati, A V Pradeep, Anupama Kakhandaki, R K Praveenchandra, Sanjana Rao
Introduction: Presbyopia is an age related loss of lens accommodation resulting in inability to read and/write or to do near work. Though literacy level may be low in rural female population of South India, but household works like sewing, sorting grains and operating mobile phones must be difficult due to presbyopia. Aim: To determine the awareness of presbyopia in rural females; also, to determine the knowledge levels regarding presbyopia, spectacle coverage and reasons for not wearing spectacles...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29154795/vision-improvement-in-pilots-with-presbyopia-following-perceptual-learning
#3
Anna Sterkin, Yuval Levy, Russell Pokroy, Maria Lev, Liora Levian, Ravid Doron, Oren Yehezkel, Moshe Fried, Yael Frenkel-Nir, Barak Gordon, Uri Polat
Israeli Air Force (IAF) pilots continue flying combat missions after the symptoms of natural near-vision deterioration, termed presbyopia, begin to be noticeable. Because modern pilots rely on the displays of the aircraft control and performance instruments, near visual acuity (VA) is essential in the cockpit. We aimed to apply a method previously shown to improve visual performance of presbyopes, and test whether presbyopic IAF pilots can overcome the limitation imposed by presbyopia. Participants were selected by the IAF aeromedical unit as having at least initial presbyopia and trained using a structured personalized perceptual learning method (GlassesOff application), based on detecting briefly presented low-contrast Gabor stimuli, under the conditions of spatial and temporal constraints, from a distance of 40 cm...
November 14, 2017: Vision Research
https://www.readbyqxmd.com/read/29152742/presbyopia-monovision-correction-and-cortical-adaptation
#4
Andreia Martins Rosa
The article "Immediate cortical adaption in visual and non-visual areas functions induced by monovision" approaches adaptation to monovision with contact lenses, one way of compensating the loss of near vision that affects all humans with ageing. This article is protected by copyright. All rights reserved.
November 19, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29148031/small-incision-lenticule-extraction-smile-monovision-for-presbyopia-correction
#5
Nikolaus Luft, Jakob Siedlecki, Walter Sekundo, Christian Wertheimer, Thomas C Kreutzer, Wolfgang J Mayer, Siegfried G Priglinger, Martin Dirisamer
PURPOSE: To evaluate the outcomes of myopic small incision lenticule extraction (SMILE) monovision in presbyopic patients. METHODS: This study included 49 presbyopic patients older than 45 years seeking surgical correction of myopia or myopic astigmatism who underwent bilateral SMILE with planned monovision in the SMILE Eyes Clinic Linz, Austria. Target refraction was plano for dominant (distance) eyes and ranged between -1.25 and -0.50 D for nondominant (near) eyes...
November 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29121878/comparison-of-femtosecond-laser-assisted-corneal-intrastromal-xenotransplantation-and-the-allotransplantation-in-rhesus-monkeys
#6
He Jin, Liangping Liu, Hui Ding, Miao He, Chi Zhang, Xingwu Zhong
BACKGROUND: In our previous study, we showed that both allogeneic and autogeneic small-incision femtosecond laser-assisted corneal intrastromal transplantation are safe and effective surgeries. However, the results of small-incision femtosecond laser-assisted intrastromal xenotransplantation have not yet been explored. Additionally, we suggest that glycerol-dehydrated corneal lamellae might provide a possible alternative for this xenogenic implantation approach. METHODS: Corneal inlay lamellae were produced from rabbits and humans using femtosecond laser-assisted surgeries and were dehydrated in glycerol for 1 week at 4 °C...
November 9, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29117414/monovision-lasik-versus-presbyopia-correcting-iols-comparison-of-clinical-and-patient-reported-outcomes
#7
Steven C Schallhorn, David Teenan, Jan A Venter, Julie M Schallhorn, Keith A Hettinger, Stephen J Hannan, Martina Pelouskova
PURPOSE: To compare clinical and quality of life outcomes between patients who underwent monovision LASIK and refractive lens exchange. METHODS: The study comprised 590 patients with refractive lens exchange and 608 patients with monovision LASIK available for 3-month postoperative clinical visits. All patients with refractive lens exchange had a Tecnis Symfony lens (Johnson & Johnson Vision Care, Inc., Santa Ana, CA) in at least one eye. Patients were divided into four refractive categories: moderate to high myopia, low myopia, plano presbyopia, and hyperopia...
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29090052/review-of-static-approaches-to-surgical-correction-of-presbyopia
#8
REVIEW
Mohammad Ali Zare Mehrjerdi, Masomeh Mohebbi, Mehdi Zandian
Presbyopia is the primary cause of reduction in the quality of life of people in their 40s, due to dependence on spectacles. Therefore, presbyopia correction has become an evolving and rapidly progressive field in refractive surgery. There are two primary options for presbyopia correction: the dynamic approach uses the residual accommodative capacity of the eye, and the static approach attempts to enhance the depth of focus of the optical system. The dynamic approach attempts to reverse suspected pathophysiologic changes...
October 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29071723/immediate-cortical-adaptation-in-visual-and-non-visual-areas-functions-induced-by-monovision
#9
Fabrizio Zeri, Marika Berchicci, Shehzad A Naroo, Sabrina Pitzalis, Francesco Di Russo
KEY POINTS: Monovision is an optical correction for presbyopes that consists of correcting one eye for far distance and the other for near distance, creating a superimposition of an in-focus with a blurred image. Brain adaptation to monovision was studied in unexperienced observers by measuring visual evoked potentials from 64-channels. The first clear effect of monovision on visual evoked potentials was the C1 amplitude reduction, indicating that the unilateral blurring induced by monovision reduces feed-forward activity in primary visual area...
October 25, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29044672/virtual-issue-editorial-presbyopia-grappling-with-an-age-old-problem
#10
EDITORIAL
W Neil Charman
No abstract text is available yet for this article.
November 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/29033538/comparison-of-a-hydrogel-corneal-inlay-and-monovision-laser-in-situ-keratomileusis-in-presbyopic-patients-focus-on-visual-performance-and-optical-quality
#11
Cornelis Verdoorn
PURPOSE: To compare the visual performance and optical quality after Raindrop Near Vision Inlay implantation or monovision LASIK for the correction of presbyopia. MATERIALS AND METHODS: In this retrospective case-series study, patients previously treated in the nondominant eye with monovision LASIK were compared with patients previously implanted with Raindrop Near Vision Inlay. The study enrolled 16 inlay and 15 monovision LASIK patients. Uncorrected near visual acuity, uncorrected distance visual acuity, binocular stereopsis, patient satisfaction, and patient task performance were assessed...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28991622/presbyopia-correction-after-previous-refractive-laser-and-cataract-surgery-september-consultation-1
#12
Rudy M M A Nuijts, An-Katrien de Brauwer
No abstract text is available yet for this article.
September 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28976783/prevalence-of-refractive-error-presbyopia-and-unmet-need-of-spectacle-coverage-in-a-northern-district-of-bangladesh-rapid-assessment-of-refractive-error-study
#13
Mohammad Muhit, Hasan Minto, Afroza Parvin, Mohammad Z Jadoon, Johurul Islam, Sumrana Yasmin, Gulam Khandaker
PURPOSE: To determine the prevalence of refractive error (RE), presbyopia, spectacle coverage, and barriers to uptake optical services in Bangladesh. METHOD: Rapid assessment of refractive error (RARE) study following the RARE protocol was conducted in a northern district (i.e., Sirajganj) of Bangladesh (January 2010-December 2012). People aged 15-49 years were selected, and eligible participants had habitual distance and near visual acuity (VA) measured and ocular examinations were performed in those with VA<6/18...
October 4, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28964684/comparison-of-the-influence-of-corneo-scleral-and-scleral-lenses-on-ocular-surface-and-tear-film-metrics-in-a-presbyopic-population
#14
Edouard Lafosse, Daniel Monsálvez Romín, José-Juan Esteve-Taboada, James S Wolffsohn, Cristian Talens-Estarelles, Santiago García-Lázaro
PURPOSE: To assess and compare the effect of the corneo-scleral lenses (C-ScL) and scleral lenses (ScL) on tear film parameters and central corneal thickness (CCT) in healthy presbyopic subjects. METHODS: Thirty subjects wore two contact lenses (CLs), randomly assigned, of neutral power, but of different diameters, 12.7mm (C-ScL) and 18mm (ScL) and being equal in the others parameters: material (HS100) and centre thickness (0.29mm). At baseline, 20min after insertion and at 8h, the tear meniscus area (TMA) and CCT was measured (with optical coherence tomography) as well as tear osmolarity...
September 27, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28944206/comparison-of-fda-safety-and-efficacy-data-for-kamra-and-raindrop-corneal-inlays
#15
Majid Moshirfar, Jordan D Desautels, Ryan T Wallace, Nicholas Koen, Phillip C Hoopes
AIM: To provide a side-by-side analysis of the summary of safety and effectiveness data (SSED) submitted to the FDA for the KAMRA and Raindrop corneal inlays for the correction of presbyopia. METHODS: SSED reports submitted to the FDA for KAMRA and Raindrop were compared with respect to loss of corrected distance visual acuity (CDVA), adverse event rates, induction of astigmatism, retention of contrast sensitivity, stability of manifest refractive spherical equivalent (MRSE), and achieved monocular uncorrected near visual acuity (UNVA) at 24mo...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28931183/-presbyopia-treatment-solution-by-laser-surgery
#16
Bojan Pajic, Horace Massa, Erika N Eskina
Today there are different options for correcting presbyopia by corneal laser procedure, but all of them have their benefits and compromises. The Monovision is a pseudoaccommodation procedure which works with an anisometropy of up to 2 D. The smaller the anisometropy is the faster a neuroadaptation will be achieved. There could be a decrease of binocularity. The monovision is not well supported by all patients, thus it is important to simulate this correction by contact lenses before surgery. The PresbyLASIK is a corneal multifocal solution for presbyopia correction for emmetropic, myopic and hyperopic eyes...
September 20, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28931181/-refractive-lens-exchange
#17
Fritz H Hengerer, Ina Conrad-Hengerer
In refractive surgery the removal of the natural lens followed by implantation of an artificial intraocular lens has been an established method to treat refractive errors. The term "clear lens exchange" separates this approach from cataract surgery, where a cloudy lens has to be removed. With regard to currently available intraocular lens technologies, there is a wide range to correct myopia, hyperopia as well as astigmatism. Trifocal or extended depth-of-focus lenses (EDOF) even with a toric component offer the patients a potential benefit to further address presbyopia, respectively...
October 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28900204/monovision-by-implantation-of-posterior-chamber-phakic-intraocular-lens-with-a-central-hole-hole-icl-for-early-presbyopia
#18
Kazutaka Kamiya, Masahide Takahashi, Natsumi Takahashi, Nobuyuki Shoji, Kimiya Shimizu
This study was aimed to evaluate visual performance at near to far distances in early presbyopic patients undergoing monovision by implantation of an ICL with a central hole (hole ICL). This pilot study comprised thirty-four eyes of 17 early presbyopic patients (age, 40 to 53 years) who underwent hole ICL implantation, and whose targeted refraction was set at emmetropia for the dominant eye, and at slight myopia (-0.5 to -1.0 diopters (D)) for the non-dominant eye. Corrected distance visual acuity was significantly improved, from -0...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28889556/short-term-visual-outcome-after-unilateral-implantation-of-a-trifocal-diffractive-presbyopia-correcting-intraocular-lens
#19
Konstantinos T Tsaousis, Maria Dermenoudi, Ioannis T Tsinopoulos
No abstract text is available yet for this article.
September 9, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28887114/ajo-centennial-cataract-surgery-from-1918-to-the-present-and-future-just-imagine
#20
Randall J Olson
PURPOSE: To review the history of cataract surgery over the past 100 years, and to offer predictions about new developments that may occur during the next 50 years. DESIGN: Interpretive essay. METHODS: Review of historical literature and author experiences pertaining to cataract surgery, with commentary and perspective. RESULTS: By this time, cataract surgery has advanced to the point that Kelman's introduction of phacoemulsification and use of intraocular lenses (IOLs), both very controversial when initially introduced, have become state of the art...
September 6, 2017: American Journal of Ophthalmology
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