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https://www.readbyqxmd.com/read/28437276/clinical-outcome-of-rebubbling-for-graft-detachment-after-descemet-membrane-endothelial-keratoplasty
#1
Nadine Gerber-Hollbach, Lamis Baydoun, Ester Fernández López, Laurence E Frank, Isabel Dapena, Vasilios S Liarakos, Sontje-Chiao Schaal, Lisanne Ham, Silke Oellerich, Gerrit R J Melles
PURPOSE: To assess the clinical outcome after successful rebubbling procedures for visually significant graft detachment after Descemet membrane endothelial keratoplasty (DMEK). METHODS: From a total of 760 consecutive DMEK surgeries, 41 eyes required rebubbling. Of those, 33 eyes of 31 patients were successful and were included in our retrospective outcome analysis study. Main outcome measures were compared with those of matched controls with uneventful primary DMEK (attached DMEK grafts without rebubbling)...
April 21, 2017: Cornea
https://www.readbyqxmd.com/read/28428679/mini-asymmetric-radial-keratotomy-and-corneal-cross-linking-for-the-treatment-of-a-bilateral-stage-iv-keratoconus-in-a-14-year-old-child
#2
Marco Abbondanza, Gabriele Abbondanza, Valentina De Felice
AIM: To present the case of a 14-year-old boy with bilateral stage IV keratoconus, treated with a combined MARK + CXL intervention, without the need for a corneal transplantation. RESULTS: The left eye displays considerable improvements, with a follow-up of 13.5 years: Kmax is decreased by 5.53 D, Kmed is decreased by 1.95 D and thinnest pachymetry is increased by 106 µm. The right eye shows equally remarkable parameters, with a follow-up of 9.5 years: Kmax is decreased by 8...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28424534/corneal-flap-thickness-with-the-moria-m2-single-use-head-90-microkeratome-in-72-consecutive-lasik-procedures
#3
Yunus Karabela, Orkun Muftuoglu, Faruk Kaya
PURPOSE: This study aimed to evaluate the accuracy and consistency of corneal flap thickness in laser-assisted in situ keratomileusis (LASIK) with the Moria M2 single-use head 90 microkeratome. METHODS: The central corneal thickness of 72 (37 right, 35 left) eyes of 37 patients was measured by ultrasonic pachymetry preoperatively and intraoperatively after flap cut. The Moria M2 single-use head 90 microkeratome was used to create a superior hinged flap in all eyes...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28421654/short-term-outcomes-of-small-incision-cataract-surgery-provided-by-a-regional-population-in-the-pacific
#4
Riyaz Bhikoo, Hans Vellara, Salome Lolokabaira, Neil Murray, Biu Sikivou, Charles McGhee
BACKGROUND: To describe patient demographics, visual and surgical outcomes of a cohort undergoing Small Incision Cataract Surgery (SICS) at a Pacific regional ophthalmic training facility. DESIGN: Prospective, longitudinal study conducted at the Pacific Eye Institute, Fiji. PARTICIPANTS: 156 patients underwent SICS. METHODS: Preoperatively, a complete ophthalmic examination, including pachymetry and macular Optical Coherence Tomography (OCT) performed by two independent investigators...
April 19, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28410355/descemetorhexis-without-graft-placement-for-the-treatment-of-fuchs-endothelial-dystrophy-preliminary-results-and-review-of-the-literature
#5
Alfonso Iovieno, Alberto Neri, Anna Maria Soldani, Chantal Adani, Luigi Fontana
PURPOSE: To report our preliminary experience with a central descemetorhexis without graft placement in Fuchs endothelial corneal dystrophy (FECD) and to review the existing literature on the topic. METHODS: A 4-mm central descemetorhexis was performed in 5 patients (4 women, 1 man; mean age: 69.8 ± 8.6 yrs; range: 57-78 yrs) with FECD. All patients had central confluent guttae, undetectable central endothelial cell count, healthy peripheral corneal endothelium, no clinically evident bullous keratopathy, and no ocular comorbidities...
April 13, 2017: Cornea
https://www.readbyqxmd.com/read/28407167/introduction-of-two-novel-stiffness-parameters-and-interpretation-of-air-puff-induced-biomechanical-deformation-parameters-with-a-dynamic-scheimpflug-analyzer
#6
Cynthia J Roberts, Ashraf M Mahmoud, Jeffrey P Bons, Arif Hossain, Ahmed Elsheikh, Riccardo Vinciguerra, Paolo Vinciguerra, Renato Ambrósio
PURPOSE: To investigate two new stiffness parameters and their relationships with the dynamic corneal response (DCR) parameters and compare normal and keratoconic eyes. METHODS: Stiffness parameters are defined as Resultant Pressure at inward applanation (A1) divided by corneal displacement. Stiffness parameter A1 uses displacement between the undeformed cornea and A1 and stiffness parameter highest concavity (HC) uses displacement from A1 to maximum deflection during HC...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28405478/comparison-of-outcomes-in-patients-who-underwent-deep-anterior-lamellar-keratoplasty-and-those-converted-to-penetrating-keratoplasty
#7
Yusuf Koçluk, Emine Alyamaç Sukgen, Ayşe Burcu
OBJECTIVES: To compare clinical outcomes of cases who underwent deep anterior lamellar keratoplasty (DALK) and cases who were converted to penetrating keratoplasty (PKP) from DALK surgery. MATERIALS AND METHODS: The records of 54 patients for whom DALK surgery was planned and were operated for different diagnoses between March 2013 and June 2015 were retrospectively analyzed. Patients were divided into two groups: group 1 (PKP group) consisted of 23 cases who were converted to PKP due to Descemet's membrane perforation at any stage of surgery; group 2 (DALK group) consisted of 31 patients whose surgery could be completed as DALK...
April 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28367525/the-distribution-of-orbscan-indices-in-young-population
#8
Hassan Hashemi, Mehdi Khabazkhoob, Negareh Yazdani, Hadi Ostadimoghaddam, Payam Nabovati, Raheleh Moravej, AbbasAli Yekta
PURPOSE: To determine the distribution of anterior eye biometry indices, such as keratometry pachymetry, anterior chamber depth (ACD), pupil diameter, and corneal diameter, as measured by Orbscan instrument in a young Iranian population. METHODS: A cross-sectional study was conducted, and subjects were selected through multistage cluster sampling from the students of Mashhad University of Medical Sciences. Objective and subjective refraction were performed followed by Orbscan imaging...
March 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28358768/impact-of-ophthalmic-surgeon-experience-on-early-postoperative-central-corneal-thickness-after-cataract-surgery
#9
Louis Lhuillier, Anne L Jeancolas, Laurie Renaudin, Christophe Goetz, François Ameloot, Shanour Premy, Nadia Ouamara, Jean M Perone
PURPOSE: To assess the impact of surgeon experience on early postoperative central corneal thickness (CCT) in eyes that have undergone phacoemulsification-based cataract surgery. METHODS: One hundred sixty eyes underwent phacoemulsification-based cataract surgery performed by an experienced surgeon (n = 110; senior group) or a surgically less experienced ophthalmic assistant (n = 50; junior group), using the divide-and-conquer or tilt-and-tumble technique for cataractous lens extraction...
May 2017: Cornea
https://www.readbyqxmd.com/read/28350625/outcome-and-histopathology-of-secondary-penetrating-keratoplasty-graft-failure-managed-by-descemet-membrane-endothelial-keratoplasty
#10
Itay Lavy, Vasilios S Liarakos, Robert M Verdijk, Jack Parker, Thomas M Müller, Marieke Bruinsma, Perry S Binder, Gerrit R J Melles
PURPOSE: To describe the clinical outcome and histopathology of Descemet membrane endothelial keratoplasty (DMEK) performed for secondary graft failure after penetrating keratoplasty (PK). METHODS: A total of 11 eyes from 10 patients who underwent DMEK for secondary PK graft failure at a tertiary referral center were included in this retrospective study. Best-corrected visual acuity, endothelial cell density, and central pachymetry were evaluated before and at regular time intervals up to 36 months after DMEK and complications were recorded; 1 post mortem cornea was available for light microscopy...
March 21, 2017: Cornea
https://www.readbyqxmd.com/read/28337058/comparison-of-microkeratome-assisted-sub-bowman-keratomileusis-with-photorefractive-keratectomy
#11
Talal A Althomali
PURPOSE: To compare the outcomes of photorefractive keratectomy (PRK) and thin-flap Laser-Assisted in Situ Keratomileusis/sub-Bowman keratomileusis (SBK) with intended flap thicknesses of 100 μm using the One Use-Plus SBK microkeratome. METHODS: Ninety-eight eyes of 52 subjects with myopic manifest refraction spherical equivalent (MRSE) of up to -5 diopters (D), a stable refraction for 1 year and a corrected distance visual acuity (CDVA) of at least 20/20 in each eye which had undergone SBK or PRK were reviewed retrospectively...
January 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28337057/accelerated-corneal-collagen-cross-linking-in-pediatric-keratoconus-one-year-study
#12
Amani E Badawi
PURPOSE: To evaluate the safety and effectiveness of accelerated corneal collagen crosslinking (CXL) in pediatric keratoconus. DESIGN: Prospective non-randomized observational study. METHODS: 33 eyes of 25 children with keratoconus were included. The corneal epithelium was mechanically removed. Next, riboflavin/hydroxypropyl methylcellulose solution) was applied for 10 min. Accelerated CXL (10 mW/cm(2) for 9 min), was accomplished. Visual acuity, slit lamp examination, refraction, keratometry readings, pachymetry, anterior and posterior elevations, average progression indices, and Q values were recorded...
January 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28320557/study-of-light-scattering-using-c-quant-%C3%A2-in-patients-with-fuchs-endothelial-dystrophy-a-pilot-study
#13
B Castaño-Martín, J Gros-Otero, J Martínez, M Teus
OBJECTIVE: The purpose of this study was to determine the light scattering in patients with Fuchs' endothelial dystrophy without clinically significant corneal oedema, and evaluate its relationship with endothelial cell count, corneal thickness, and corneal biomechanical parameters. MATERIALS AND METHODS: The values of light scattering were measured by C-Quant(®) (Oculus Optikgeräte GmbH, Germany) in 32 eyes of 17 patients diagnosed with Fuchs' endothelial dystrophy without clinically significant corneal oedema...
March 17, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28318708/-high-irradiance-accelerated-corneal-collagen-crosslinking-for-the-treatment-of-keratoconus-a-retrospective-study
#14
N Moineau, L Sauvan, J Benichou, G Ho Wang Yin, L Hoffart
PURPOSE: To evaluate the safety and efficacy of accelerated corneal collagen crosslinking on stabilization of progressive keratoconus. MATERIALS AND METHODS: This was a retrospective study from March 2013 to March 2015. Patients with progressive keratoconus who underwent accelerated corneal collagen crosslinking were included. Visual acuity with and without correction, biomicroscopy, corneal elevation topography (maximum and mean keratometry values, minimum pachymetry, densitometry) and side effects were recorded at baseline and at 1, 3 and 6 months (M)...
April 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28317684/comparison-of-the-performance-and-safety-of-2-ophthalmic-viscosurgical-devices-in-cataract-surgery
#15
Gerd U Auffarth, Florian N Auerbach, Tanja Rabsilber, José A Gegúndez, Ricardo Cuiña, Yves Renard, Paolo Vinciguerra, Fabrizio Camesasca, Francoise Van Cauwenberge, Thierry Amzallag, Gysbert Van Setten, Mike P Holzer
PURPOSE: To compare the clinical performance and safety of 2 ophthalmic viscosurgical devices (OVDs)-Twinvisc (OVD 1) and Duovisc (OVD 2)-in cataract surgery. SETTING: European multicenter study. DESIGN: Prospective randomized controlled study. METHODS: Patients with cataract had phacoemulsification and intraocular lens implantation in 1 eye. They were randomly assigned to receive OVD 1 or OVD 2. Preoperative and postoperative examinations over 3 months included mean intraocular pressure (IOP), incidence of IOP peaks (≥30 mm Hg and ≥24 mm Hg), endothelial cell count (ECC), corneal thickness, and intraocular inflammation...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317679/distinguishing-between-contact-lens-warpage-and-ectasia-usefulness-of-optical-coherence-tomography-epithelial-thickness%C3%A2-mapping
#16
Julie M Schallhorn, Maolong Tang, Yan Li, Derek J Louie, Winston Chamberlain, David Huang
PURPOSE: To distinguish between corneal ectasia and contact lens-related warpage by characteristic patterns on corneal topography and optical coherence tomography (OCT) epithelial thickness maps. SETTING: Casey Eye Institute, Portland, Oregon, USA. DESIGN: Prospective and retrospective case series. METHODS: Axial and mean power maps were obtained on corneal topography systems. Epithelial thickness maps were generated using RTVue OCT...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28260857/corneal-thickness-in-dry-eyes-in-an-iraqi-population
#17
Noora Mauwafak Ali, Furkaan M Hamied, Qasim K Farhood
BACKGROUND: Dry eye disorder is a multifactorial disease of the tears and ocular surface that results in discomfort and visual disturbance. Corneal pachymetry becomes increasingly important in refractive surgery, for the accurate assessment of intraocular pressure, and in the preoperative assessment of other ocular surgeries. PURPOSE: To assess the effect of dry eye disorder on the central corneal thickness (CCT) by comparing with CCT of normal eyes of age-matched individuals...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28257382/customized-corneal-cross-linking-a-mathematical-model
#18
Ciro Caruso, Robert L Epstein, Carmine Ostacolo, Luigi Pacente, Salvatore Troisi, Gaetano Barbaro
PURPOSE: To improve the safety, reproducibility, and depth of effect of corneal cross-linking with the ultraviolet A (UV-A) exposure time and fluence customized according to the corneal thickness. METHODS: Twelve human corneas were used for the experimental protocol. They were soaked using a transepithelial (EPI-ON) technique using riboflavin with the permeation enhancer vitamin E-tocopheryl polyethylene glycol succinate. The corneas were then placed on microscope slides and irradiated at 3 mW/cm for 30 minutes...
May 2017: Cornea
https://www.readbyqxmd.com/read/28254359/accuracy-of-cirrus-hd-oct-and-topcon-sp-3000p-for-measuring-central-corneal-thickness
#19
Jorge A Calvo-Sanz, Javier Ruiz-Alcocer, Miguel A Sánchez-Tena
PURPOSE: To compare and analyze the interchangeability of three measuring systems, each based on a different technique, for central corneal thickness (CCT) analysis. METHODS: CCT measurements were measured using optical coherence tomography (OCT), non-contact specular microscopy (NCSM), and ultrasonic pachymetry (USP) in 60 eyes of 60 healthy patients with a mean age of 66.5±15.0 years and a mean spherical equivalent of 0.43±1.14 D. Analysis of variations in measurement concordance and correlation among the three different methods were performed...
February 18, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28251079/corneal-biomechanical-data-and-biometric-parameters-measured-with-scheimpflug-based-devices-on-normal-corneas
#20
Gabor Nemeth, Eszter Szalai, Ziad Hassan, Agnes Lipecz, Zsuzsa Flasko, Laszlo Modis
AIM: To analyze the correlations between ocular biomechanical and biometric data of the eye, measured by Scheimpflug-based devices on healthy subjects. METHODS: Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology (CorVis ST) device on healthy eyes and the 10 device-specific parameters were recorded. Pentacam HR-derived parameters (corneal curvature radii on the anterior and posterior surfaces; apical pachymetry; corneal volume; corneal aberration data; depth, volume and angle of the anterior chamber) and axial length (AL) from IOLMaster were correlated with the 10 specific CorVis ST parameters...
2017: International Journal of Ophthalmology
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