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https://www.readbyqxmd.com/read/28445315/the-effect-of-timolol-0-5-on-the-correction-of-myopic-regression-after-lasik
#1
Hong Qi, Caifeng Gao, Yaxin Li, Xue Feng, Miao Wang, Yu Zhang, Yueguo Chen
BACKGROUD: Postlaser in situ keratomileusis (post-LASIK) refractive regression is defined as the gradual, partial, or total loss of initial correction that limits the predictability, efficiency, and long-term stability of LASIK. Our study assesses the effect of Timolol 0.5% on the correction of myopic regression after LASIK. METHODS: This prospective, randomized, controlled study included 62 eyes of 62 patients with myopic regression of -1.18 ± 0.86 diopters (D) after myopic LASIK...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445203/considerations-for-refractive-surgery-in-the-glaucoma-patient
#2
Meleha Ahmad, Isaac Chocron, Anurag Shrivastava
PURPOSE OF REVIEW: Given the popularity of keratorefractive surgery, and an aging populous of patients who have undergone these procedures, there is an increasing need for updated management protocols. This is particularly relevant for patients with chronic progressive diseases such as glaucoma, due to the variety of related diagnostic and management challenges inherent to these diseases. Here, we will review the current literature to provide an update on the management of patients with glaucoma who are undergoing, or have had laser ablative refractive surgery...
April 25, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28444523/iop-measurement-in-silicone-oil-tamponade-eyes-by-corvis-st-tonometer-goldmann-applanation-tonometry-and-non-contact-tonometry
#3
Yang Zhang, Lin Zheng, Ailing Bian, Qi Zhou
PURPOSE: To compare the postoperative intraocular pressure (IOP) of eyes following pars plana vitrectomy (PPV) combined with intravitreal silicone oil (SO) tamponade by Corneal Visualization Scheimpflug Technology (CST), Goldmann applanation tonometry (GAT) and non-contact tonometry (NCT). METHODS: Thirty-eight participants who had undergone PPV combined with SO tamponade to treat vitreoretinal diseases were enrolled. Postoperative IOP measurements were obtained using CST, NCT and GAT...
April 25, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28442695/management-of-concomitant-cataract-and-glaucoma
#4
Giorgio Marchini, Piero Ceruti, Gabriele Vizzari, Davide Berzaghi, Andrea Zampieri
The coexistence of cataract and glaucoma represents a challenge for the ophthalmologist and the issue is still open to debate. The surgical management is based on both the visual field defect and the loss of visual acuity. The surgical options currently available are: (1) cataract extraction alone, (2) sequential glaucoma surgery and cataract extraction, and (3) combined surgery by 1 site or by 2 separate sites. Phacoemulsification alone is suggested when glaucoma can be controlled by medication and the visual field defect is moderate and nonprogressive...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442693/ab-interno-schlemm-s-canal-surgery
#5
Brian A Francis, Handan Akil, Benjamin B Bert
In primary open-angle glaucoma, the site of greatest resistance to aqueous outflow is thought to be the trabecular meshwork (TM) and inner wall of Schlemm's canal. Augmentation of the conventional (trabecular) outflow pathway can facilitate physiologic outflow and subsequently lower intraocular pressure. The most recent approach to enhancing the conventional outflow pathway is via an internal approach to the TM and Schlemm's canal. Ab interno Schlemm's canal surgery includes 4 novel surgical approaches: (1) removal of the TM and inner wall of Schlemm's canal by an internal approach (ab interno trabeculectomy), (2) implantation of a microstent to bypass the TM, (3) disruption of the TM and inner wall of Schlemm's canal via an internal approach (ab interno trabeculotomy), and (4) dilation of Schlemm's canal via an internal approach (ab interno canaloplasty)...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442692/viscocanalostomy-and-canaloplasty-ab-externo-schlemm-s-canal-surgery
#6
Matthias C Grieshaber
Ab externo Schlemm's canal (SC) surgery (e.g., viscocanalostomy and canaloplasty) is a valuable alternative to glaucoma filtration surgery. It targets the abnormally high resistance to outflow in the trabecular meshwork (TM) and reestablishes the physiologic outflow system. In viscocanalostomy, viscoelastic substance is injected to dilate SC, which in turn leads to microdisruptions of the inner wall. In canaloplasty, the additional intracanalicular stent (suture or Stegmann Canal Expander®) keeps the canal patent and enhances the circumferential flow...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442685/deep-sclerectomy
#7
Sylvain Roy, André Mermoud
Filtering surgery evolved from the classic trabeculectomy, in which penetration into the anterior chamber is a necessary step, toward nonpenetrating deep sclerectomy. The first procedure presents several serious complications, such as durable hypotony, hyphema, flat anterior chamber, choroidal detachment, endophthalmitis, and surgery-induced cataract. To avoid such drawbacks, a novel nonpenetrating technique was designed to improve the predictability of the intraocular pressure (IOP)-lowering action, while reducing the incidence of the immediate postoperative complications encountered with the penetrating method...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442683/achievements-and-limits-of-current-medical-therapy-of-glaucoma
#8
Pelagia Kalouda, Christina Keskini, Eleftherios Anastasopoulos, Fotis Topouzis
Prescribing medical therapy for the treatment of glaucoma can be a complex process since many parameters should be taken into consideration regarding its achievements and limits. Today, a variety of options, including multiple drug classes and multiple agents within classes, are available to the clinician, but caution should be given to their side effects and contraindications. Glaucoma patients with preexisting ocular surface disease should be treated with caution, and preferably with preservative-free formulations, as there is an increased risk for symptom deterioration...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442607/n-methyl-d-aspartate-nmda-receptor-blockade-prevents-neuronal-death-induced-by-zika-virus-infection
#9
Vivian V Costa, Juliana L Del Sarto, Rebeca F Rocha, Flavia R Silva, Juliana G Doria, Isabella G Olmo, Rafael E Marques, Celso M Queiroz-Junior, Giselle Foureaux, Julia Maria S Araújo, Allysson Cramer, Ana Luíza C V Real, Lucas S Ribeiro, Silvia I Sardi, Anderson J Ferreira, Fabiana S Machado, Antônio C de Oliveira, Antônio L Teixeira, Helder I Nakaya, Danielle G Souza, Fabiola M Ribeiro, Mauro M Teixeira
Zika virus (ZIKV) infection is a global health emergency that causes significant neurodegeneration. Neurodegenerative processes may be exacerbated by N-methyl-d-aspartate receptor (NMDAR)-dependent neuronal excitoxicity. Here, we have exploited the hypothesis that ZIKV-induced neurodegeneration can be rescued by blocking NMDA overstimulation with memantine. Our results show that ZIKV actively replicates in primary neurons and that virus replication is directly associated with massive neuronal cell death. Interestingly, treatment with memantine or other NMDAR blockers, including dizocilpine (MK-801), agmatine sulfate, or ifenprodil, prevents neuronal death without interfering with the ability of ZIKV to replicate in these cells...
April 25, 2017: MBio
https://www.readbyqxmd.com/read/28441443/the-effect-of-parental-factors-in-children-with-large-cup-to-disc-ratios
#10
Hae-Young Lopilly Park, Min Ji Ha, Sun Young Shin
BACKGROUND: To investigate large cup-to-disc ratios (CDR) in children and to determine the relationship between parental CDR and clinical characteristics associated with glaucoma. METHODS: Two hundred thirty six children aged 6 to 12 years with CDR ≥ 0.6 were enrolled in this study. Subjects were classified into two groups based on parental CDR: disc suspect children with disc suspect (CDR ≥0.6) parents and disc suspect children without disc suspect parents...
2017: PloS One
https://www.readbyqxmd.com/read/28441214/the-osteo-odonto-keratoprosthesis
#11
Mehran Zarei-Ghanavati, Venkata Avadhanam, Alfonso Vasquez Perez, Christopher Liu
PURPOSE OF REVIEW: To describe the practice of and recent developments in the osteo-odonto-keratoprosthesis. RECENT FINDINGS: Formal psychological assessment and support have been described. A sub-aqua system for fashioning the osteo-odonto-keratoprosthesis lamina; adoption of thicker laminae; use of bisphosphonate drugs; advances in laminar imaging; and use of bone augmentation and bone morphogenetic protein have been described for prevention, detection, and management of laminar resorption...
April 24, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28441060/characterization-of-a-standardized-ex-vivo-porcine-model-to-assess-short-term-intraocular-pressure-changes-and-trabecular-meshwork-vitality-after-pars-plana-vitrectomy-with-different-silicone-oil-and-bss-tamponades
#12
Martina Ebner, Siegfried Mariacher, José Hurst, Peter Szurman, Sven Schnichels, Martin S Spitzer, Kai Januschowski
PURPOSE: The aim of this study was to characterize a standardized porcine ex-vivo testing system for intraocular pressure (IOP) monitoring after vitrectomy with different endotamponades. METHODS: Twenty-four pig eyes, six per endotamponade group were obtained immediately postmortem. After pars plana vitrectomy, vitreous substitutes (silicone oil 1000 mPas, 2000 mPas, 5000 mPas, and Balanced Salt Solution (BSS)) were instillated and IOP was observed over 24-hours...
April 25, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28440260/immortal-ozurdex-a-10-month-follow-up-of-an-intralenticular-implant
#13
B Poornachandra, Vinod B M Kumar, Chaitra Jayadev, Subashchandra H Dorelli, Naresh Kumar Yadav, Rohit Shetty
A 78-year-old male who had received a dexamethasone implant (Ozurdex, Allergan, Inc., Irvine, CA, USA) 15 days back for recalcitrant diabetic macular edema in the left eye came to us for a second opinion. On examination, his corrected distance visual acuity was 20/20 in the right eye and 20/40 in the left eye. Early cataractous changes were present in both eyes. The intraocular pressure was within normal limits. The Ozurdex implant was seen lodged in the posterior cortex of the crystalline lens in the left eye, confirmed on anterior segment optical coherence tomography (OCT) and ultrasound biomicroscopy...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28439976/eye-retraction-and-rotation-during-corvis-st-air-puff-intraocular-pressure-measurement-and-its-quantitative-analysis
#14
Agnieszka Boszczyk, Henryk Kasprzak, Agnieszka Jóźwik
PURPOSE: The aim of this study was to analyse the indentation and deformation of the corneal surface, as well as eye retraction, which occur during air puff intraocular pressure (IOP) measurement. METHODS: A group of 10 subjects was examined using a non-contact Corvis ST tonometer, which records image sequences of corneas deformed by an air puff. Obtained images were processed numerically in order to extract information about corneal deformation, indentation and eyeball retraction...
May 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28438591/effect-of-anesthesia-on-intraocular-pressure-measurement-in-children
#15
REVIEW
Mikel Mikhail, Kourosh Sabri, Alex V Levin
Measurement of the intraocular pressure (IOP) is central to the diagnosis and management of pediatric glaucoma. An examination under anesthesia is often necessary in pediatric patients. Different agents used for sedation or general anesthesia have varied effects on IOP. Hemodynamic factors, methods of airway management, tonometry technique, and body positioning can all affect IOP measurements. The most accurate technique is one that reflects the awake IOP. We review factors affecting IOP measurements in the pediatric population and provide recommendations on the most accurate means to measure IOP under anesthesia based on the current literature...
April 21, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28437896/variability-of-apparent-and-inherent-optical-properties-of-sediment-laden-waters-in-large-river-basins-lessons-from-in-situ-measurements-and-bio-optical-modeling
#16
Sylvain Pinet, Jean-Michel Martinez, Sylvain Ouillon, Bruno Lartiges, Raul Espinoza Villar
We investigated the relationships between inherent and apparent optical properties (IOP and AOP, respectively) and suspended sediment concentrations (SSC) in the main Amazonian river waters. In situ measurements of SSC, remote sensing reflectance (R<sub>rs</sub>), the diffuse light attenuation coefficient (K<sub>d</sub>) and the total and non-algal particle (NAP) absorption coefficients (a<sub>TOT</sub> and a<sub>NAP</sub>, respectively) were conducted during three sampling trips along different streams of the Amazon River catchment (104 stations)...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437276/clinical-outcome-of-rebubbling-for-graft-detachment-after-descemet-membrane-endothelial-keratoplasty
#17
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/28435237/evaluation-of-ex-press-glaucoma-implant-in-elderly-diabetic-patients-after-23g-vitrectomy
#18
Anita Lyssek-Boroń, Adam Wylęgała, Dariusz Dobrowolski, Ewelina Kowalczyk, Katarzyna Polanowska, Edward Wylęgała
PURPOSE: The most frequent qualifications for pars plana vitrectomy (PPV) in diabetic patients include recurrent hemorrhage into the vitreous body chamber and vitreoretinal proliferation, also with traction retinal detachment. The aim of this study was to evaluate the effectiveness of EX-PRESS implant for the treatment of secondary glaucoma in elderly diabetic patients following PPV 23G with silicon oil or SF6 gas endotamponade. MATERIALS AND METHODS: This retrospective analysis comprised 18 patients (19 eyes)...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28435210/incidence-of-interface-fluid-syndrome-after-laser-in-situ-keratomileusis-in-egyptian-patients
#19
Amr A Gab-Alla
PURPOSE: To determine the incidence of interface fluid syndrome (IFS) secondary to steroid-induced elevation of intraocular pressure (IOP) following laser in situ keratomileusis (LASIK) in myopic Egyptian patients. METHODS: This retrospective case series study was conducted at El-Gowhara Private Eye Center. The medical records of 1,807 patients (3,489 eyes), who underwent LASIK to correct myopia from April 2012 to December 2015 were included. The patients were operated on and reviewed by one surgeon (AAG) for IFS after LASIK associated with elevation of IOP (as compared to preoperative values)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28435208/is-high-myopia-a-risk-factor-for-visual-field-progression-or-disk-hemorrhage-in-primary-open-angle-glaucoma
#20
Koji Nitta, Kazuhisa Sugiyama, Ryotaro Wajima, Gaku Tachibana
PURPOSE: The purpose of this study was to clarify differences between highly myopic and non-myopic primary open-angle glaucoma (POAG) patients, including normal-tension glaucoma patients. PATIENTS AND METHODS: A total of 269 POAG patients were divided into two groups: patients with ≥26.5 mm of axial length (highly myopic group) and patients with <24.0 mm of axial length (non-myopic group). RESULTS: We analyzed 53 highly myopic and 93 non-myopic POAG patients...
2017: Clinical Ophthalmology
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