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Eye and Vision (London, England)

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https://www.readbyqxmd.com/read/29785407/unusual-occurrence-of-orbital-hemangiopericytoma-in-the-zygomatic-bone-of-an-adolescent-a-case-report
#1
Bahram Eshraghi, Hadi Ghadimi, Zohreh Nozarian
Background: Hemangiopericytoma and solitary fibrous tumor are considered related variants on the same spectrum and both may essentially be the same tumor. They are infrequently encountered in the orbital region while the zygomatic bone is an extremely rare location for these neoplasms to occur. Case presentation: A 14-year-old boy presented with complaint of deformity of left infraorbital area and a firm, regular mass in the region. Orbital CT scan revealed a well-defined round isodense intraosseous lesion in the lowermost portion of the lateral orbital wall (zygomatic bone), expanding the bone and protruding anteriorly and medially...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29736407/investigating-the-impact-of-preoperative-corneal-astigmatism-orientation-on-the-postoperative-spherical-equivalent-refraction-following-intraocular-lens-implantation
#2
Richard N McNeely, Salissou Moutari, Eric Pazo, Jonathan E Moore
Background: To investigate the impact of the orientation of preoperative corneal astigmatism on achieving the postoperative target refraction following monofocal intraocular lens (IOL) implantation. Methods: This study enrolled 339 eyes who had uneventful cataract surgery or refractive lens exchange (RLE) with subsequent monofocal IOL implantation. Eyes were initially categorized dependent upon axial length and then on the orientation of preoperative anterior corneal astigmatism...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29725607/utility-of-combining-spectral-domain-optical-coherence-tomography-structural-parameters-for-the-diagnosis-of-early-glaucoma-a-mini-review
#3
REVIEW
Jean-Claude Mwanza, Joshua L Warren, Donald L Budenz
Optical coherence tomography (OCT) has moved to the forefront of imaging modalities in the management of glaucoma and retinal diseases. It is modifying how glaucoma and glaucoma progression are diagnosed clinically and augmenting our understanding of the disease. OCT provides multiple parameters from various anatomic areas for glaucoma diagnosis, evaluation of treatment efficacy, and progression monitoring. While the use of multiple parameters has increased the likelihood of detecting early structural changes, diagnosing glaucoma in early stages is often challenging when the damages are subtle and not apparent on OCT scans, in addition to the fact that assessment of OCT parameters often yields conflicting findings...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29713653/comparison-of-clinical-outcomes-between-femtosecond-laser-assisted-versus-conventional-phacoemulsification
#4
Robert Edward Ty Ang, Michelle Marie Salcedo Quinto, Emerson Marquez Cruz, Mark Christian Reyes Rivera, Gladness Henna Austria Martinez
Background: To compare femtosecond laser-assisted versus conventional phacoemulsification in terms of visual and refractive outcomes, cumulative dissipated energy, anterior chamber inflammation and endothelial cell loss. Methods: In this retrospective cohort study, records of eyes that underwent femtosecond laser-assisted cataract surgery (FLACS) or conventional phacoemulsification (CP) were reviewed. The Victus femtosecond laser (Bausch and Lomb, Germany) was used to carry out corneal incisions, anterior capsulotomy, and lens fragmentation in FLACS procedures...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29564359/femtosecond-laser-assisted-astigmatic-keratotomy-a-review
#5
REVIEW
John S M Chang
Background: Astigmatic keratotomy (AK) remains an accessible means to correct surgically induced or naturally occurring astigmatism. The advantages of femtosecond laser-assisted astigmatic keratotomy (FSAK) over conventional methods have been recognized recently. Main text: This review evaluates the efficacy, complications, and different methods of FSAK for correction of astigmatism in native eyes and those that underwent previous penetrating keratoplasty (PKP)...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29564358/influence-of-overnight-orthokeratology-lens-fitting-decentration-on-corneal-topography-reshaping
#6
Jiaojie Chen, Wei Huang, Rong Zhu, Jun Jiang, Yiyu Li
Background: This retrospective study was designed to investigate the sole influence of orthokeratology (OK) lens fitting decentration on the Zernike coefficients of the reshaped anterior corneal surface. Methods: This study comprised a review of 106 right eyes and measurements of corneal topography both before OK and at 1-month follow-up visit. A routine was designed to calculate local corneal surface astigmatism and assist the determination of OK lens fitting decentration from pupil center...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29497624/scleral-surgery-for-the-treatment-of-presbyopia-where-are-we-today
#7
REVIEW
AnnMarie Hipsley, Brad Hall, Karolinne M Rocha
Presbyopia corrections traditionally have been approached with attempts to exchange power, either at the cornea or the lens planes, inducing multifocality, or altering asphericity to impact the optical system. Treatments that affect the visual axis, such as spectacle and contact lens correction, refractive surgeries, corneal onlays and inlays, and intraocular lenses are typically unable to restore true accommodation to the presbyopic eye. Their aim is instead to enhance 'pseudoaccommodation' by facilitating an extended depth-of-focus for which vision is sufficient...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29445760/corneal-functional-optical-zone-under-monocular-and-binocular-assessment
#8
Samuel Arba Mosquera, Diego de Ortueta, Shwetabh Verma
Background: In this retrospective randomized case series, we compared bilateral symmetry between OD and OS eyes, intercorneal differences and Functional Optical Zone (FOZ) of the corneal aberrations. Methods: Sixty-seven normal subjects (with no ocular pathology) who never had any ocular surgery were bilaterally evaluated at Augenzentrum Recklinghausen (Germany). In all cases, standard examinations and corneal wavefront topography (OPTIKON Scout) were performed...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29417088/the-art-of-nomograms
#9
Samuel Arba Mosquera, Diego de Ortueta, Shwetabh Verma
Background: To retrospectively analyse strategies for adjusting refractive surgery plans with reference to the preoperative manifest refraction. Methods: We constructed seven nomograms based on the refractive outcomes (sphere, cylinder, axis [SCA]) of 150 consecutive eyes treated with laser in situ keratomileusis for myopic astigmatism. We limited the initial data to the SCA of the manifest refraction. All nomograms were based on the strategy: if for x diopters (D) of attempted metric, y D is achieved; we can reverse this sentence and state for achieving y D of change in the metric, x D will be planned...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29417087/fundamentals-of-presbyopia-visual-processing-and-binocularity-in-its-transformation
#10
Olga I Rozanova, Andrey G Shchuko, Tatyana S Mischenko
Background: The accommodation has considerable interactions with the pupil response, vergence response and binocularity. The transformation of visual reception processing and the changes of the binocular cooperation during the presbyopia development are still poorly studied. So, the regularities of visual system violation in the presbyopia formation need to be characterized. This study aims to reveal the transformation of visual reception processing and to determine the role of disturbances in binocular interactions in presbyopia formation...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29238735/post-keratoplasty-astigmatism-management-by-relaxing-incisions-a-systematic-review
#11
REVIEW
Gaëlle Ho Wang Yin, Louis Hoffart
Postoperative visual acuity can be limited by post-keratoplasty astigmatism, even with a clear corneal graft. Astigmatism management can be performed by selective suture removal, adjustment of sutures, optical correction, photorefractive procedures, wedge resection, intra-ocular lens implantation, intracorneal ring segments, relaxing incisions with or without compression sutures and repeated keratoplasty. Relaxing incisions can be made in the graft, graft-host interface or host cornea. Despite the unpredictability of the method because the flat and steep meridians are usually not orthogonal after penetrating keratoplasty, with asymmetric power distribution, all the studies showed an overall reduction of refractive, keratometric or topographic astigmatism, ranging from 30% to 72% with manual or femtosecond-assisted techniques...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29234686/therapeutic-approaches-for-corneal-neovascularization
#12
REVIEW
Sepehr Feizi, Amir A Azari, Sharareh Safapour
Angiogenesis refers to new blood vessels that originate from pre-existing vascular structures. Corneal neovascularization which can lead to compromised visual acuity occurs in a wide variety of corneal pathologies. A large subset of measures has been advocated to prevent and/or treat corneal neovascularization with varying degrees of success. These approaches include topical corticosteroid administration, laser treatment, cautery, and fine needle diathermy. Since the imbalance between proangiogenic agents and antiangiogenic agents primarily mediate the process of corneal neovascularization, recent therapies are intended to disrupt the different steps in the synthesis and actions of proangiogenic factors...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29177182/glaucoma-surgery-and-induced-astigmatism-a-systematic-review
#13
REVIEW
Helen H L Chan, Yu Xiang G Kong
Background: The refractive outcomes of glaucoma surgeries, particularly their effect on astigmatism, are incompletely understood. Main body: Trabeculectomy is associated with a considerable amount of with-the-rule astigmatic change in the immediate postoperative period. This is followed by a gradual against-the-rule shift. These changes are altered with the use of mitomycin C (MMC). Non-penetrating surgery such as deep sclerectomy is also associated with a similar or smaller degree of induced astigmatism...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29167808/small-incision-lenticule-extraction-smile-in-the-correction-of-myopic-astigmatism-outcomes-and-limitations-an-update
#14
REVIEW
Jorge L Alió Del Barrio, Verónica Vargas, Olena Al-Shymali, Jorge L Alió
Small Incision Lenticule Extraction (SMILE) is a flap-free intrastromal technique for the correction of myopia and myopic astigmatism. To date, this technique lacks automated centration and cyclotorsion control, so several concerns have been raised regarding its capability to correct moderate or high levels of astigmatism. The objective of this paper is to review the reported SMILE outcomes for the correction of myopic astigmatism associated with a cylinder over 0.75 D, and its comparison with the outcomes reported with the excimer laser-based corneal refractive surgery techniques...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29159188/correction-to-the-impact-of-dysfunctional-tear-films-and-optical-aberrations-on-chronic-migraine
#15
Rohit Shetty, Kalyani Deshpande, Chaitra Jayadev, Kareeshma Wadia, Pooja Mehta, Rushad Shroff, Harsha L Rao
[This corrects the article DOI: 10.1186/s40662-017-0070-1.].
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29124079/identifying-more-reliable-parameters-for-the-detection-of-change-during-the-follow-up-of-mild-to-moderate-keratoconus-patients
#16
Ivo Guber, Colm McAlinden, François Majo, Ciara Bergin
Background: Reaching a consensus on which parameters are most reliable at detecting progressive keratoconus patients with serial topography imaging is not evident. The aim of the study was to isolate the parameters best positioned to detect keratoconus progression using the Pentacam HR® measures based on the respective limits of repeatability and range of measurement. Method: Using the Pentacam HR®, a tolerance index was calculated on anterior segment parameters in healthy and keratoconic eyes...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29046877/effect-of-carotenoids-dietary-supplementation-on-macular-function-in-diabetic-patients
#17
Marilita M Moschos, Maria Dettoraki, Michael Tsatsos, George Kitsos, Christos Kalogeropoulos
BACKGROUND: Diabetic retinopathy is a major cause of visual impairment and blindness among working-age people worldwide. The aim of our study was to investigate the effects of a carotenoid supplementation on retinal thickness and macular function of patients with diabetes using optical coherence tomography (OCT) and multifocal electroretinography (mfERG). METHODS: A retrospective study of one hundred and twenty eyes of sixty patients age between 40 and 60 years with non-insulin dependent type 2 diabetes mellitus without diabetic retinopathy who underwent OCT and mfERG and took vitamin supplements for a period of two years...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28932753/effect-of-iop-based-infusion-system-with-and-without-balanced-phaco-tip-on-cumulative-dissipated-energy-and-estimated-fluid-usage-in-comparison-to-gravity-fed-infusion-in-torsional-phacoemulsification
#18
Praveen K Malik, Taru Dewan, Arun Kr Patidar, Ekta Sain
BACKGROUND: To evaluate the effect of three different combinations of tip designs and infusion systems in torsional phacoemulsification (INFINITI and CENTURION) in patients with cataract. According to the manufacturer, two unique improvements in the Centurion are: active fluid dynamic management system and use of an intrepid balanced tip. The study specifically aimed to evaluate the beneficial effects, if any, of change in tip design and infusion system individually and in combination on both per-operative parameters as well as endothelial health over 6 months...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28920066/investigation-of-a-real-time-location-system-of-corneal-astigmatic-axis
#19
Jian-Guo Zhao, An-Peng Pan, Ke Zheng, A-Yong Yu
BACKGROUND: To construct a real-time computerized location system (RCLS) to analyze and display the axis of corneal astigmatism and to compare its accuracy with the Scheimpflug method. METHODS: Fifty-seven eyes of 39 volunteers with corneal astigmatism more than 1.00 diopter (D) were recruited. The RCLS was composed of a circular light-emitting diode (LED) light source, surgical microscope, surgical video system, computer and self-programming image analysis software...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28828390/comparison-between-toric-and-spherical-phakic-intraocular-lenses-combined-with-astigmatic-keratotomy-for-high-myopic-astigmatism
#20
Lin-Yan Zheng, Shuang-Qian Zhu, Yan-Feng Su, Hu-Yong Zou, Qin-Mei Wang, A-Yong Yu
BACKGROUND: To compare the outcomes of a toric phakic intraocular lens (PIOL) and a spherical PIOL combined with astigmatic keratotomy (AK) for the correction of high myopic astigmatism. METHODS: This study enrolled patients with high myopic astigmatism, including 30 eyes (22 patients) that received a toric PIOL implantation (TICL group), and 32 eyes (24 patients) that received combined AK and a spherical PIOL implantation (AK+ ICL group). The outcomes were compared between the two groups before surgery, and at the following time points after surgery: 1 week, 1, 3, 6 months, and 1, 2 years...
2017: Eye and Vision (London, England)
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