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https://www.readbyqxmd.com/read/28644239/effect-of-the-learning-curve-on-visual-and-refractive-outcomes-of-small-incision-lenticule-extraction
#1
Tommy C Y Chan, Alex L K Ng, George P M Cheng, Victor C P Woo, Jiamei Zhang, Yan Wang, Vishal Jhanji
PURPOSE: To investigate the effect of the learning curve for small-incision lenticule extraction during the first 2 years of experience. METHODS: Small-incision lenticule extraction was performed using the 500-kHz VisuMax femtosecond laser (Carl Zeiss Meditec) by the same surgeon. The initial 100 patients since the surgeon started operating independently were considered as group 1; the recent 100 patients were considered as group 2. The same laser settings and technique were used...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28640145/comparison-of-implantable-collamer-lens-visian-icl-v4-and-icl-v4c-for-high-myopia-a-cohort-study
#2
Ying Tian, Hai-Bo Jiang, Jian Jiang, Dan Wen, Xiao-Bo Xia, Wei-Tao Song
The aim of this study was to investigate the visual quality of the 2 kinds of intraocular lens: Visian implantable collamer lens (ICL) V4 and Visian ICL V4c implantations for high myopia.Twenty cases (20 eyes) with high myopia who received Visian ICL V4 implantation and 18 cases (18 eyes) with high myopia who received Visian ICL V4c implantation in our hospital from April 1, 2014 to November 31, 2016 were enrolled. In 1-month follow-up, near vision, best corrected distant visual acuity (BCVA), uncorrected distant visual acuity (UDVA), and wavefront aberrations were measured, and compensation factor was calculated...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639450/-bilateral-congenital-multiple-pigmented-vitreous-cysts-in-a%C3%A2-three-year-old-girl-ten-years-follow-up
#3
J Štěpánková, M Hósová, D Dotřelová
The authors present a case report of a three-year-old female patient with bilateral multiple anterior vitreous cysts. During examination for intermittent esotropia of the right eye was diagnosed not only hypermetropia, astigmatism and anisometropia, but also pigmented changes in peripheral retrolental space of both eyes. Clinical examination under general anaesthesia revealed bilateral multiple pigmented immobile vitreous cysts. There were five almost spherical, translucent, but slightly pigmented cysts on its cover on the right eye and four similar on the left, but visible only with dilated pupils...
2017: Ceská a Slovenská Oftalmologie
https://www.readbyqxmd.com/read/28639449/-optic-properties-of-myopic-correction-by-orthokeratology-contact-lenses-a-case-report
#4
M Mýlková, F Pluháček
INTRODUCTION: Orthokeratology lenses present a special type of hard contact lenses, which is used especially for myopic correction. The lenses are applied during the night, when thanks to their special shape cause temporally (reversible) change of the cornea shape. During the day, there is not necessary to wear any other refractive correction. Due to the wearing regimen, there is, comparing to the classical contact lenses, higher risk of health complications. For their safe use, it is necessary to pay attention to the application of lenses of adequate parameters, follow up the care and hygiene precautions, regular controls and early treatment of possible problems...
2017: Ceská a Slovenská Oftalmologie
https://www.readbyqxmd.com/read/28638250/phacoemulsification-and-core-vitrectomy-in-fuchs-heterochromic-uveitis
#5
Sadullah Keles, Osman Ondas, Orhan Ates, Metin Ekinci, Baki Kartal, Eren Arpali, Kenan Yildirim, Erdinc Ceylan, Orhan Baykal
OBJECTIVE: To evaluate the efficacy of phacoemulsification combined with posterior capsulorhexis, core vitrectomy and ciliary sulcus intraocular lens (IOL) implantation in patients with Fuchs' heterochromic uveitis (FHU). MATERIALS AND METHODS: A total of 18 eyes of 18 patients with FHU underwent cataract surgery were included in the study. 18 eyes with FHU underwent posterior capsulorhexis, core vitrectomy and poly (methyl methacrylate) (PMMA) IOL implantation in the ciliary sulcus...
June 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28631305/two-years-results-of-small-incision-lenticule-extraction-and-wavefront-guided-laser-in%C3%A2-situ-keratomileusis-for-myopia
#6
Hidenaga Kobashi, Kazutaka Kamiya, Akihito Igarashi, Masahide Takahashi, Kimiya Shimizu
PURPOSE: To compare the 2-years visual and refractive outcomes between small-incision lenticule extraction (SMILE) and wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopia and myopic astigmatism. METHODS: Our retrospective case-control study examined 30 eyes of 30 patients with the manifest refraction spherical equivalent (MRSE) of -3.71 ± 1.83 dioptres (D) who underwent SMILE and 30 eyes of 30 patients with MRSE of -3.81 ± 1.40 D who underwent wavefront-guided LASIK...
June 20, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28628489/shifting-of-the-line-of-sight-in-tilted-disk-syndrome
#7
Pinar Kosekahya, Ozge Sarac, Mustafa Koc, Mehtap Caglayan, Gozde Hondur, Nurullah Cagil
OBJECTIVES: To investigate the shifting of the line of sight (LoS) and the refractive, topographic, and aberrometric parameters that may be associated with the shifting of the LoS in eyes with tilted disk syndrome (TDS). METHODS: Eighty left eyes of 80 subjects with TDS (Study Group) and 70 left eyes of 70 subjects with myopia and astigmatism (Control Group) were included in this study. Line-of-sight coordinates on the horizontal (x) and vertical (y) axes, refractive, topographic, and aberrometric parameters were evaluated...
June 16, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28626818/astigmatic-treatment-with-photorefractive-keratectomy-investigations-of%C3%A2-non-keratometric-ocular-astigmatism
#8
Alireza Peyman, Zahra Dastborhan, Mohammadreza Peyman
PURPOSE: To evaluate the effect of non-keratometric ocular astigmatisms on visual and refractive outcomes after photorefractive keratectomy (PRK) for correction of myopic astigmatisms. METHODS: Seventy one eyes of 36 subjects were enrolled in this study. Patients underwent PRK for treatment of myopia. Subjects were evaluated for refractive error, keratometry, and visual acuity before and six months after surgery. Pre- and post-op non-keratometric astigmatisms were calculated by vectorial analysis of the difference between the corneal plane refractive astigmatism and keratometric astigmatism...
June 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28620708/validation-of-fourier-analysis-of-videokeratographic-data
#9
Haris Sideroudi, Georgios Labiris, Fienke Ditzel, Efi Tsaragli, Kimonas Georgatzoglou, Haralampos Siganos, Vassilios Kozobolis
PURPOSE: The aim was to assess the repeatability of Fourier transfom analysis of videokeratographic data using Pentacam in normal (CG), keratoconic (KC) and post-CXL (CXL) corneas. METHODS: This was a prospective, clinic-based, observational study. One randomly selected eye from all study participants was included in the analysis: 62 normal eyes (CG group), 33 keratoconus eyes (KC group), while 34 eyes, which had already received CXL treatment, formed the CXL group...
June 15, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28619977/infectious-crystalline-keratopathy-after-descemet%C3%A3-%C3%A2-%C3%A2-s-stripping-endothelial-keratoplasty
#10
Ashley J Porter, Graham A Lee, Kevin Whitehead
A 68-year-old woman presented with infectious crystalline keratopathy 4 months after she underwent a combined phacoemulsification and Descemet's stripping endothelial keratoplasty for Fuch's endothelial dystrophy in her left eye. After 5 months of topical moxifloxacin 1%, the infiltrate responded well but had not completely resolved, with the resulting endothelial failure requiring a penetrating keratoplasty 9 months after the initial operation. Microbiology identified Enterococcus faecalis with the histopathology demonstrating bacterial colonies within the graft interface...
June 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28619515/dynamic-accommodation-without-feedback-does-not-respond-to-isolated-blur-cues
#11
José J Esteve-Taboada, Antonio J Del Águila-Carrasco, Paula Bernal-Molina, Norberto López-Gil, Robert Montés-Micó, Philip Kruger, Iván Marín-Franch
The aim of this study was to determine whether dynamic accommodation responds to isolated blur cues without feedback, and without changes in the distance of the object. Nine healthy subjects aged 21-40years were recruited. Four different aberration patterns were used as stimuli to induce blur with (1) the eye's natural, uncorrected, optical aberrations, (2) all aberrations corrected, (3) spherical aberration only, or (4) astigmatism only. The stimulus was a video animation based on computer-generated images of a monochromatic Maltese cross...
June 21, 2017: Vision Research
https://www.readbyqxmd.com/read/28607770/detailed-distribution-of-corneal-epithelial-thickness-and-correlated-characteristics-measured-with-sd-oct-in-myopic-eyes
#12
Yanan Wu, Yan Wang
PURPOSE: To investigate the detailed distribution of corneal epithelial thickness in single sectors and its correlated characteristics in myopic eyes. METHODS: SD-OCT was used to measure the corneal epithelial thickness distribution profile. Differences of corneal epithelial thickness between different parameters and some correlations of characteristics were calculated. RESULTS: The thickest and thinnest part of epithelium were found at the nasal-inferior sector (P < 0...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28604979/femtosecond-laser-assisted-cataract-in-vitreoretinal-surgery
#13
Stanislao Rizzo, Daniela Bacherini, Francesco Faraldi, Marco Pellegrini, Cesare Mariotti
PURPOSE: To assess the safety and surgical results of femtosecond laser-assisted phacovitrectomy. METHODS: Fifteen patients over 50 years of age with coexisting vitreoretinal pathologies and cataract underwent combined femtosecond laser-assisted cataract extraction and sutureless 25-G and 27-G vitreoretinal surgery. RESULTS: The indication for surgery was macular hole in 6 patients, epiretinal membrane in 6, vitreous hemorrhage in 2, and retinal detachment in 1...
June 2, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28602323/bifocal-nondiffractive-intraocular-lens-for%C3%A2-enhanced-depth-of-focus-in-correcting-presbyopia-clinical-evaluation
#14
Efstathios Vounotrypidis, Raphael Diener, Christian Wertheimer, Thomas Kreutzer, Armin Wolf, Siegfried Priglinger, Wolfgang J Mayer
PURPOSE: To assess the clinical outcomes and patient satisfaction after bilateral cataract surgery with implantation of a bifocal refractive enhanced depth of focus intraocular lens (IOL) with a low near addition (add). SETTING: Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany. DESIGN: Prospective longitudinal case series. METHODS: Eyes with bilateral age-related cataract and corneal astigmatism of less than 1...
May 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28602321/changes-in-corneal-astigmatism-during%C3%A2-20%C3%A2-years-after-cataract-surgery
#15
Ken Hayashi, Shin-Ichi Manabe, Akira Hirata, Koichi Yoshimura
PURPOSE: To examine how corneal astigmatism changes with age over 20 years after cataract surgery and to assess whether the changes differ from those in eyes that did not have surgery. SETTING: Hayashi Eye Hospital, Fukuoka, Japan. DESIGN: Retrospective case study. METHODS: Using an autokeratometer, corneal astigmatism was measured preoperatively, at baseline (the day the surgically induced astigmatism stabilized), and 10 years and 20 years after baseline...
May 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28601344/predictability-of-smile-over-four-years-in-high-myopes
#16
J Burazovitch, D Naguzeswski, T Beuste, M Guillard
OBJECTIVE: To determine whether the visual outcomes of the refractive surgery technique small incision lenticule extraction (SMILE), are stable, effective, and predictable for high myopia over a four-year period. RESEARCH DESIGN: This is a retrospective study. The data were collected between March 2012 and July 2016. PARTICIPANTS: Two hundred and forty-eight patients participated in the study; that is, 496 eyes: 140 eyes of 70 patients (52 women/18 men) were classified into the highly myopic group (refraction measured in spherical equivalent (RMSE)>-6 D), and 356 eyes of 178 patients (98 women/80 men) into the control group (RMSE<-6 D)...
June 7, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28599911/refraction-during-incipient-presbyopia-the-aston-longitudinal-assessment-of-presbyopia-alap-study
#17
Deborah S Laughton, Amy L Sheppard, Leon N Davies
PURPOSE: To investigate non-cycloplegic changes in refractive error prior to the onset of presbyopia. METHODS: The Aston Longitudinal Assessment of Presbyopia (ALAP) study is a prospective 2.5 year longitudinal study, measuring objective refractive error using a binocular open-field WAM-5500 autorefractor at 6-month intervals in participants aged between 33 and 45 years. RESULTS: From the 58 participants recruited, 51 participants (88%) completed the final visit...
June 6, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28591281/topographic-outcomes-after-corneal-collagen-crosslinking-in-progressive-keratoconus-1-year-follow-up
#18
Mauro C Tiveron, Camila Ribeiro Koch Pena, Richard Yudi Hida, Luciane Bugmann Moreira, Felipe Roberto Exterhotter Branco, Newton Kara-Junior
Purpose: We aimed to report and analyze topographic and refractive outcomes following corneal collagen crosslinking (CXL) in patients with progressive keratoconus (KC). Methods: We performed a retrospective, analytical, and observational study of 100 eyes from 74 progressive KC patients who underwent CXL at the Eye Hospital of Paraná. Keratometric values were analyzed preoperatively as well as 3 and 12 months postoperatively. Results: For a total of 100 eyes, 68 belonged to male patients...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28589448/-laser-in-situ-keratomileusis-with-microkeratome-or-femtosecond-laser
#19
REVIEW
T Kohnen, G Steinwender
OBJECTIVE AND PRINCIPLES: In LASIK, after cutting a lamellating stromal corneal incision (flap) with a microkeratome or a femtosecond laser, the underlying tissue is treated with an excimer laser for refractive correction. The objective is to achieve independency from spectacles and contact lenses due to correction of ametropia. INDICATIONS: Surgery is indicated when the patient wishes to achieve independency from spectacles and contact lenses. For LASIK, the German Commission for Refractive Surgery defined a range of applicability for myopic correction up to -8 diopters (D), astigmatic correction up to 5 D and hyperopic correction up to +3 D...
June 6, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28587100/excimer-laser-surgery-biometrical-iris-eye-recognition-with-cyclorotational-control-eye-tracker-system
#20
Bojan Pajic, Zeljka Cvejic, Zoran Mijatovic, Dragan Indjin, Joerg Mueller
A prospective comparative study assessing the importance of the intra-operative dynamic rotational tracking-especially in the treatment of astigmatisms in corneal refractive Excimer laser correction-concerning clinical outcomes is presented. The cyclotorsion from upright to supine position was measured using iris image comparison. The Group 1 of patients was additionally treated with cyclorotational control and Group 2 only with X-Y control. Significant differences were observed between the groups regarding the mean postoperative cylinder refraction (p < 0...
May 25, 2017: Sensors
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