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Corneal hysteresis is a corneal biomechanical parameter measured using the Ocular Response Analyzer (ORA) to correct intraocular pressure readings in glaucoma diagnosis.
Year:
2018
Region / City:
Depew, NY
Topic:
Corneal hysteresis, intraocular pressure, glaucoma
Document Type:
Guideline Note
Organization / Institution:
VbBS, HERC
Author:
Not specified
Target Audience:
Ophthalmologists, healthcare professionals
Effective Period:
Not specified
Approval Date:
November 2014
Modification Date:
Not specified
Price: 8 / 10 USD
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Degree:
B.Sc. Physical Science (CS)
Semester:
VI
Subject:
Solid State Physics
Unit:
Magnetic Properties of Matter
Topic:
Ferromagnetism and Ferromagnetic Domains
Key Concepts:
Curie Temperature, Exchange Interaction, Weiss Molecular Field, Hysteresis Loop
Theorists Mentioned:
Pierre Weiss, Werner Heisenberg
Related Theory:
Langevin’s Theory of Paramagnetism
Book Reference:
Solid State Physics and Electronics by R.K. Puri and V. K. Babbar
Page Reference:
243–246
Examples of Materials:
Fe, Co, Ni, Gd and certain alloys and oxides
Year:
2020
Region / city:
USA
Theme:
Ophthalmology, Medical Risk Management
Document type:
Risk Management Recommendations
Organization:
OMIC
Author:
Anne M. Menke, RN, PhD
Target audience:
Ophthalmologists
Effective period:
Ongoing
Approval date:
8/4/20
Date of changes:
None specified
Section:
Supplemental Materials
Abbreviations:
IOP; MEE/RHC; QC; GSA; PCA; LD; MAF; PC; WES; BAM; VCF; EUR; AFR; AMR; EAS; SAS; GQ; SNPs; MAD; GTEx; Non-PAR; Indels; HWE; AB; GWAS; FAME; GC; QTL; eQTL; CLPP; FDR; OHTN; RINT
Methodology:
Whole exome sequencing and statistical genetic analysis
Sequencing Platform:
NovaSeq S4 flow cell (2x151bp)
Library Preparation Kit:
KAPA Hyper Prep with Library Amplification Primer Mix (KK8504)
Capture Kit:
IDT XGen hybridization and wash kit
Custom Bait:
TWIST Biosciences exome bait
Liquid Handling Systems:
Agilent Bravo; Hamilton Starlet
Quantification Method:
qPCR; Invitrogen Quant-It broad range dsDNA assay
Genotyping Platform:
Global Screening Array (GSA)
Software:
PLINK 1.9; PLINK 2.0; R; Python; Hail v0.2
Reference Panel:
1000 Genomes Project Phase 3
Ancestry Groups:
European (EUR); African (AFR); Admixed American (AMR); East Asian (EAS); South Asian (SAS)
Statistical Analysis:
Analysis of variance (aov in R); Tukey honest significant difference test
Quality Control Criteria:
Sample-level and variant-level QC including genotype missingness, heterozygosity, relatedness (PI_HAT), sex concordance, ancestry inference, BAM and VCF metrics
Year:
2023
Journal:
Journal of Cataract & Refractive Surgery
DOI:
10.1097/j.jcrs.0000000000001055
Authors:
Jascha A. Wendelstein; Sarah Hinterberger; Peter C. Hoffmann; Nino Hirnschall; Michael J. Koss; Achim Langenbucher; Paul Jirak; Matthias Bolz
Institutions:
Johannes Kepler University Linz; Kepler University Hospital GmbH; Saarland University; IROC Zürich; Augen- und Laserklinik Castrop-Rauxel; Augenzentrum Nymphenburger Höfe München; EyeLaser Clinic Linz
Region:
Linz, Austria
Study Period:
2014–2020
Submission Date:
November 22, 2021
Acceptance Date:
August 30, 2022
Study Design:
Single-center, single-surgeon retrospective consecutive case series
Sample Size:
91 eyes of 91 patients
Population:
Middle European patients undergoing myopic phakic intraocular lens implantation
Intervention:
Visian Implantable Collamer Lens (ICL) model V4c implantation
Comparative Methods:
OCOS software; JPhakic software; Olsen-Feingold formula; Holladay formula; Linz-Homburg-Castrop formula
Outcome Measures:
Mean and median absolute prediction error; percentage of eyes within 0.25 D, 0.5 D, 0.75 D, and 1.0 D
Ethics Approval:
EK 1074/2021, JKU ethics committee Linz
Publisher:
Wolters Kluwer on behalf of ASCRS and ESCRS
Copyright Year:
2022
Year:
2023
Region / city:
Australia
Field:
Ophthalmology, Genetics
Document type:
Research Article
Institution:
QIMR Berghofer Medical Research Institute, University of Queensland, The University of Western Australia, Massachusetts Institute of Technology, Queensland University of Technology, University of Tasmania, University of Melbourne
Author:
Weixiong He, Samantha Sze-Yee Lee, Santiago Diaz Torres, Xikun Han, Puya Gharahkhani, Michael Hunter, Chandrakumar Balartnasingam, Jamie Craig, Alex W Hewitt, David A Mackey, Stuart MacGregor
Target Audience:
Researchers, Healthcare professionals
Period:
2023
Date approved:
N/A
Date of changes:
N/A
Year:
2026
Study Type:
Clinical survey
Region / City:
Not specified
Topic:
Ophthalmology, intraocular lenses
Document Type:
Supplementary tables
Institution:
Not specified
Authors:
Not specified
Target Population:
Patients with intraocular lenses
Questionnaires Included:
NAVQ, CATQUEST-9SF, Dysphotopsia, Spectacle dependence
Number of IOL types surveyed:
4
Data Presentation:
Number of responses per question
Year:
2026
Region:
Asia
Subject:
Ophthalmology, Intraocular Lens Calculation
Document Type:
Supplementary Material
Institution:
Department of Ophthalmology, Medical Research Center
Authors:
Jinchul Kim, Joonsung Park, Yoonjung Jo
Sample Size:
Short eyes N=134, Medium eyes N=2833, Long eyes N=133
Formulas Evaluated:
PEARL, PEARL-rCMAL, HTCL, Kane, EVO 2.0, HTAL, HSAL, HSCL, Barrett, Hoffer QST, Holladay 1, Hoffer Q, SRK/T
Metrics Reported:
ME, SD, RMSE, MedAE, MAE, Percentage within 0.50 D
Optimized Constants:
Provided for all formulas including Hoffer Q, Holladay 1, SRK/T, Haigis variants, PEARL, Kane, EVO 2.0, Barrett
Data Analysis Methods:
Root mean square error comparisons, heteroscedastic test, Holm correction, Cochran’s Q test, pairwise McNemar test
Axial Length Categories:
Short (<22 mm), Medium (22–26 mm), Long (>26 mm)
Year:
2023
Region / City:
United States
Topic:
Medical Reimbursement Appeal, Ophthalmology
Document Type:
Appeal Letter
Organization:
Medicare Appeals Department
Author:
[Physician Name]
Target Audience:
Medicare Appeals Analyst
Period of Action:
[Date of Surgery]
Date of Approval:
[Date]
Date of Changes:
[If applicable]
Year:
[Today’s Date]
Region / City:
[City, State]
Topic:
Medical Appeal, Medicare Reimbursement, Corneal Transplantation
Document Type:
Appeal Letter
Organization:
[Medicare Contractor Name]
Author:
[Physician Name]
Target Audience:
Medicare Appeals Analyst
Effective Period:
[Date of Surgery]
Approval Date:
[Today’s Date]
Modification Date:
[Date of Surgery]
Year:
2023
Region / city:
Tampa, FL; Stanford, CA; New Delhi, India; Dallas, TX
Topic:
Ophthalmology, Corneal Epithelial Cells, Cell Polarity
Document Type:
Research Supplementary Data
Institution:
University of South Florida, Stanford University, UT Southwestern Medical Center, Shroff Charity Eye Hospital
Author:
Simran Kumar, Peri Sohnen, Satinder Kaur, Mehak Vohra, Danielle M. Robertson, Sudha Swamynathan, Shivalingappa K. Swamynathan
Target Audience:
Researchers in Ophthalmology, Cell Biology, and Related Fields
Period of Effect:
N/A
Approval Date:
N/A
Modification Date:
N/A
Year:
2015
Journal:
Nat Sci
Volume:
13
Issue:
1
Pages:
45-48
ISSN:
1545-0740
Author:
Dr. Ghazal Norouzi
Author Affiliation:
Shahid Beheshti University of Medical Sciences, Tehran, Iran
Institution:
Imam Hussain (AS) Hospital, Tehran, Iran
Study Period:
2009-2013
Study Design:
Retrospective descriptive analytical study
Sample Size:
215 patients
Follow-up Duration:
24 months
Field:
Ophthalmology
Keywords:
Corneal Transplantation; Penetrating Keratoplasty; Graft Rejection; Risk Factors
Language:
English
Year:
2023
Region / City:
United States
Topic:
Medical Necessity, Insurance Reimbursement
Document Type:
Appeal Letter
Organization:
[Insurance Provider]
Author:
[Physician Name]
Target Audience:
Appeals Department, Insurance Provider
Period of Effect:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Year:
2008
Region / City:
United States
Topic:
Medical Claims
Document Type:
Letter
Organization / Institution:
Medicare
Author:
Healthcare Provider
Target Audience:
Insurance Companies, Medicare
Effective Date:
January 1, 2008
Date of Approval:
Not specified
Date of Changes:
Not specified
Year:
1994
Region / city:
N/A
Topic:
Keratoconus screening
Document type:
Journal article
Institution:
Investigative ophthalmology & visual science
Author:
Maeda N, Klyce SD, Smolek MK, Thompson HW
Target audience:
Ophthalmologists, researchers
Period of validity:
N/A
Approval date:
N/A
Modification date:
N/A