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https://www.readbyqxmd.com/read/29156494/comparative-analysis-of-vestibular-ecomorphology-in-birds
#1
Roger B J Benson, Ethan Starmer-Jones, Roger A Close, Stig A Walsh
The bony labyrinth of vertebrates houses the semicircular canals. These sense rotational accelerations of the head and play an essential role in gaze stabilisation during locomotion. The sizes and shapes of the semicircular canals have hypothesised relationships to agility and locomotory modes in many groups, including birds, and a burgeoning palaeontological literature seeks to make ecological interpretations from the morphology of the labyrinth in extinct species. Rigorous tests of form-function relationships for the vestibular system are required to support these interpretations...
December 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29148921/a-predictive-model-for-readmissions-among-medicare-patients-in-a-california-hospital
#2
Ian Duncan, Nhan Huynh
Predictive models for hospital readmission rates are in high demand because of the Centers for Medicare & Medicaid Services (CMS) Hospital Readmission Reduction Program (HRRP). The LACE index is one of the most popular predictive tools among hospitals in the United States. The LACE index is a simple tool with 4 parameters: Length of stay, Acuity of admission, Comorbidity, and Emergency visits in the previous 6 months. The authors applied logistic regression to develop a predictive model for a medium-sized not-for-profit community hospital in California using patient-level data with more specific patient information (including 13 explanatory variables)...
November 17, 2017: Population Health Management
https://www.readbyqxmd.com/read/29146479/visual-outcome-of-penetrating-keratoplasty-deep-anterior-lamellar-keratoplasty-and-descemet-membrane-endothelial-keratoplasty
#3
Clàudia Garrido, Genís Cardona, Josep L Güell, Jaume Pujol
PURPOSE: A single-center, cross-sectional study was designed to assess and compare objective and subjective quality of vision of patients intervened with penetrating keratoplasty (PK), deep anterior lamellar keratoplasty (DALK) and Descemet membrane endothelial keratoplasty (DMEK). METHODS: Forty-six patients previously intervened with PK (22 eyes), DALK (7 eyes) and DMEK (17 eyes) were recruited. Visual evaluation included spherical and cylindrical refraction, distance corrected visual acuity (DCVA), photopic contrast sensitivity (CS), optical quality, measured with the HD Analyzer (objective scattering index [OSI], MTF cut-off and Strehl ratio), and ocular and corneal aberrometry, measured with the KR-1W Wavefront Analyzer...
November 13, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/29141906/keratolimbal-allograft-for-limbal-stem-cell-deficiency-after-severe-corneal-chemical-injury-a-systematic-review
#4
Swapna S Shanbhag, Hajirah N Saeed, Eleftherios I Paschalis, James Chodosh
PURPOSE: To review the published literature on outcomes of keratolimbal allograft (KLAL) for the surgical treatment of limbal stem cell deficiency (LSCD) and corneal blindness after severe corneal chemical injury. METHODS: Literature searches were conducted in the following electronic databases: MEDLINE, EMBASE, Science Citation Index, CINAHL, LILACS and the Cochrane Library. Standard systematic review methodology was applied. The main outcome measure was the proportion of eyes with best-corrected visual acuity (BCVA) ≥20/200 at last follow-up...
November 15, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29137576/perioperative-assessment-of-older-surgical-patients-using-a-frailty-index-feasibility-and-association-with-adverse-post-operative-outcomes
#5
H Lin, N M Peel, I A Scott, D L Vardesh, P Sivalingam, R L McBride, J J Morong, M J Nelson, R E Hubbard
This study aimed to examine the feasibility of using a frailty index (FI) based on comprehensive geriatric assessment (CGA), to assess the level of frailty in older surgical patients preoperatively and to evaluate the association of FI-CGA with poorer postoperative outcomes. Two hundred and forty-six patients aged ≥70 years undergoing intermediate- to high-risk surgery in a tertiary hospital were recruited. Frailty was assessed using a 57-item FI-CGA form, with fit, intermediate frail, and frail patients defined as FI ≤0...
November 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/29135710/adjustment-of-intrastromal-corneal-ring-segments-after-unsuccessful-implantation-in-keratoconic-eyes
#6
Tiago Monteiro, José Ferreira Mendes, Fernando Faria-Correia, Nuno Franqueira, David Madrid-Costa, José F Alfonso
PURPOSE: To evaluate visual, refractive, and corneal topography outcomes in eyes with keratoconus that have undergone exchange/adjustment surgery with a new intrastromal corneal ring segment (ICRS) combination after unsuccessful visual and/or refractive outcomes after primary ICRS surgery. METHODS: A retrospective nonrandomized case series was conducted including consecutive eyes of patients with keratoconus that underwent ICRS adjustment after an unsuccessful visual outcome...
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29133651/comparison-of-30-2-standard-and-fast-programs-of-swedish-interactive-threshold-algorithm-of-humphrey-field-analyzer-for-perimetry-in-patients-with-intracranial-tumors
#7
Manav Deep Singh, Kanika Jain
PURPOSE: To find out whether 30-2 Swedish Interactive Threshold Algorithm (SITA) Fast is comparable to 30-2 SITA Standard as a tool for perimetry among the patients with intracranial tumors. METHODS: This was a prospective cross-sectional study involving 80 patients aged ≥18 years with imaging proven intracranial tumors and visual acuity better than 20/60. The patients underwent multiple visual field examinations using the two algorithms till consistent and repeatable results were obtained...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29122820/comparing-a-new-hydroexpression-technique-with-conventional-forceps-method-for-smile-lenticule-removal
#8
Alex L K Ng, George P M Cheng, Victor C P Woo, Vishal Jhanji, Tommy C Y Chan
BACKGROUND: We described a modified 'hydroexpression' technique for the lenticule removal during small-incision lenticule extraction (SMILE) surgery and compared the results with conventional forceps method. METHODS: This was a retrospective, comparative study of 50 patients who underwent SMILE surgery by the same surgeon. We compared the 1-week and 3-months postoperative results after SMILE using the hydroexpression technique with the conventional forceps technique...
November 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29120123/the-value-of-multidetector-computed-tomography-of-orbits-in-globe-protrusion-in-comparison-to-hertel-exophthalmometry
#9
Igor Đorić, Miloš Žarković, Zoran Radojičić, Nikola Repac, Aleksandar Janićijević, Krešimir Rotim, Goran Tasić, Lukas Rasulić
The use of multidetector computed tomography (MDCT) is an integral part of contemporary diagnostics of Graves‘ orbitopathy. The aim of this study was to assess proptosis measurement by MDCT and to compare it to the current standard, Hertel exophthalmometry. A cross-sectional study was conducted at the Clinical Centre of Serbia and included 91 patients (19 male and 72 female) with verified Graves‘ orbitopathy. Globe protrusion measured by MDCT (globe protrusion, GPR) was correlated to Hertel measured protrusion (HR)...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29119072/a-comparison-of-visual-outcomes-and-patient-satisfaction-between-photorefractive-keratectomy-and-femtosecond-laser-assisted-in-situ-keratomileusis
#10
Nauman Hashmani, Sharif Hashmani, Priyanka Ramesh, Hina Rajani, Junaid Ahmed, Jaish Kumar, Arun Kumar, Munira Jamali
Purpose To compare visual outcomes and satisfaction among patients of photorefractive keratectomy (PRK; Wavelight EX 500, Alcon, Ft Worth, TX, USA) and femtosecond laser-assisted in situ keratomileusis (FAL; Wavelight FS 200 laser and Wavelight EX 500, Alcon, Ft Worth, TX, USA). Methods We performed a retrospective study of 409 eyes in 207 patients that underwent either PRK (n=90) or FAL (n=117) at the two centers of Hashmanis Hospital, Karachi, Pakistan. The included refractive outcomes were sphere diopters (D), cylinder D, and spherical equivalent D...
September 1, 2017: Curēus
https://www.readbyqxmd.com/read/29118839/acute-angle-closure-glaucoma-a-potential-blind-spot-in-critical-care
#11
Anna Petsas, George Chapman, Richard Stewart
We report a case of a 69-year-old gentleman who developed an acutely painful eye with loss of visual acuity whilst on the critical care unit. He was admitted three days previously with an infective exacerbation of chronic obstructive pulmonary disease requiring invasive mechanical ventilation. In addition, he received intravenous antibiotics, steroids, nebulised bronchodilators and intravenous aminophylline, together with noradrenaline for blood pressure support. On development of visual symptoms, an emergency ophthalmology review diagnosed acute angle closure glaucoma...
August 2017: J Intensive Care Soc
https://www.readbyqxmd.com/read/29117062/relations-between-self-reported-daily-life-fatigue-hearing-status-and-pupil-dilation-during-a-speech-perception-in-noise-task
#12
Yang Wang, Graham Naylor, Sophia E Kramer, Adriana A Zekveld, Dorothea Wendt, Barbara Ohlenforst, Thomas Lunner
OBJECTIVE: People with hearing impairment are likely to experience higher levels of fatigue because of effortful listening in daily communication. This hearing-related fatigue might not only constrain their work performance but also result in withdrawal from major social roles. Therefore, it is important to understand the relationships between fatigue, listening effort, and hearing impairment by examining the evidence from both subjective and objective measurements. The aim of the present study was to investigate these relationships by assessing subjectively measured daily-life fatigue (self-report questionnaires) and objectively measured listening effort (pupillometry) in both normally hearing and hearing-impaired participants...
November 7, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29109892/topography-and-higher-order-corneal-aberrations-of-the-fellow-eye-in-unilateral-keratoconus
#13
Sibel Aksoy, Sezen Akkaya, Yelda Özkurt, Sevda Kurna, Banu Açıkalın, Tomris Şengör
Objectives: Comparison of topography and corneal higher order aberrations (HOA) data of fellow normal eyes of unilateral keratoconus patients with keratoconus eyes and control group. Materials and Methods: The records of 196 patients with keratoconus were reviewed. Twenty patients were identified as unilateral keratoconus. The best corrected visual acuity (BCVA), topography and aberration data of the unilateral keratoconus patients' normal eyes were compared with their contralateral keratoconus eyes and with control group eyes...
October 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29109868/visual-quality-assessment-of-posterior-capsule-opacification-using-optical-quality-analysis-system-oqas
#14
Hui Zhang, Jing Wang
Objective: To evaluate intraocular scattering in eyes with posterior capsule opacification by means of an objective scatter index (OSI) obtained from double-pass images of optical quality assessment system (OQAS TM II) and to determine the indication for laser capsulotomy when patients report visual disturbances without decreased visual acuity. Methods: In this prospective, observational, and nonconsecutive case series study, a total of 32 eyes of 29 patients are diagnosed with posterior capsule opacification after age-associated cataract were analyzed...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29105728/tests-for-detecting-strabismus-in-children-aged-1-to-6-years-in-the-community
#15
REVIEW
Sarah Hull, Vijay Tailor, Sara Balduzzi, Jugnoo Rahi, Christine Schmucker, Gianni Virgili, Annegret Dahlmann-Noor
BACKGROUND: Strabismus (misalignment of the eyes) is a risk factor for impaired visual development both of visual acuity and of stereopsis. Detection of strabismus in the community by non-expert examiners may be performed using a number of different index tests that include direct measures of misalignment (corneal or fundus reflex tests), or indirect measures such as stereopsis and visual acuity. The reference test to detect strabismus by trained professionals is the cover‒uncover test...
November 6, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29077186/laser-assisted-in-situ-keratomileusis-with-optimized-fast-repetition-and-cyclotorsion-control-excimer-laser-to-treat-hyperopic-astigmatism-with-high-cylinder
#16
Jorge L Alió Del Barrio, Mauro Tiveron, Ana B Plaza-Puche, María A Amesty, Laura Casanova, María J García, Jorge L Alió
PURPOSE: To evaluate the visual outcomes after femtosecond laser-assisted laser in situ keratomileusis (LASIK) surgery to correct primary compound hyperopic astigmatism with high cylinder using a fast repetition rate excimer laser platform with optimized aspheric profiles and cyclotorsion control. METHODS: Eyes with primary simple or compound hyperopic astigmatism and a cylinder power ≥3.00 D had uneventful femtosecond laser-assisted LASIK with a fast repetition rate excimer laser ablation, aspheric profiles, and cyclotorsion control...
October 18, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29074496/treatment-of-advanced-glaucoma-study-a-multicentre-randomised-controlled-trial-comparing-primary-medical-treatment-with-primary-trabeculectomy-for-people-with-newly-diagnosed-advanced-glaucoma-study-protocol
#17
Anthony J King, Gordon Fernie, Augusto Azuara-Blanco, Jennifer M Burr, Ted Garway-Heath, John M Sparrow, Luke Vale, Jemma Hudson, Graeme MacLennan, Alison McDonald, Keith Barton, John Norrie
BACKGROUND: Presentation with advanced glaucoma is the major risk factor for lifetime blindness. Effective intervention at diagnosis is expected to minimise risk of further visual loss in this group of patients. AIM: To compare clinical and cost-effectiveness of primary medical management compared with primary surgery for people presenting with advanced open-angle glaucoma (OAG). METHODS: Design: A prospective, pragmatic multicentre randomised controlled trial (RCT)...
October 26, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29068913/optical-coherence-tomography-angiography-in-patients-with-retinitis-pigmentosa
#18
Maged Alnawaiseh, Friederike Schubert, Peter Heiduschka, Nicole Eter
PURPOSE: To evaluate the correlation between the flow density measured by optical coherence tomography angiography and functional parameters in patients with retinitis pigmentosa. METHODS: Twenty eyes of 20 patients with retinitis pigmentosa and 21 eyes of 21 healthy subjects were prospectively included in this study. Optical coherence tomography angiography was performed using RTVue XR Avanti with AngioVue (Optovue Inc). The macula was imaged with a 6 × 6-mm scan, whereas for the optic nerve head a 4...
October 24, 2017: Retina
https://www.readbyqxmd.com/read/29065634/a-queue-based-monte-carlo-analysis-to-support-decision-making-for-implementation-of-an-emergency-department-fast-track
#19
Kristin Fitzgerald, Lori Pelletier, Martin A Reznek
Emergency departments (EDs) are seeking ways to utilize existing resources more efficiently as they face rising numbers of patient visits. This study explored the impact on patient wait times and nursing resource demand from the addition of a fast track, or separate unit for low-acuity patients, in the ED using a queue-based Monte Carlo simulation in MATLAB. The model integrated principles of queueing theory and expanded the discrete event simulation to account for time-based arrival rates. Additionally, the ED occupancy and nursing resource demand were modeled and analyzed using the Emergency Severity Index (ESI) levels of patients, rather than the number of beds in the department...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29064950/epidemiology-of-reduced-visual-acuity-among-chinese-multiethnic-students
#20
Deng-Juan Qian, Min Hu, Hua Zhong, Qiao Nie, Jun Li, Yuansheng Yuan, Chen-Wei Pan
SIGNIFICANCE: Data regarding the epidemiology of reduced visual acuity (VA) among multiethnic children and adolescents in China are few. Understanding the vision-related health inequalities among different ethnic groups is crucial for health resource allocations and clinical managements for eye diseases. PURPOSE: We aim to determine the prevalence, main causes, and health inequalities of reduced VA in multiethnic school students in rural China. METHODS: A school-based eye survey including 7681 multiethnic school students aged 5 to 16 years in the southwestern part of China was conducted...
October 23, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
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