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https://www.readbyqxmd.com/read/29770182/blur-unblurred-a-mini-tutorial
#1
Hans Strasburger, Michael Bach, Sven P Heinrich
Optical blur from defocus is quite frequently considered as equivalent to low-pass filtering. Yet that belief, although not entirely wrong, is inaccurate. Here, we wish to disentangle the concepts of dioptric blur, caused by myopia or mis-accommodation, from blur due to low-pass filtering when convolving with a Gaussian kernel. Perhaps surprisingly-if well known in optometry-the representation of a blur kernel (or point-spread function) for dioptric blur is, to a good approximation and disregarding diffraction, simply a cylinder...
March 2018: I-Perception
https://www.readbyqxmd.com/read/29748095/corneal-topography-with-an-aberrometry-topography-system
#2
Michael Mülhaupt, Sven Dietzko, James Wolffsohn, Stefan Bandlitz
PURPOSE: To investigate the agreement between the central corneal radii and corneal eccentricity measurements generated by the new Wave Analyzer 700 Medica (WAV) compared to the Keratograph 4 (KER) and to test the repeatability of the instruments. METHODS: 20 subjects (10 male, mean age 29.1 years, range 21-50 years) were recruited from the students and staff of the Cologne School of Optometry. Central corneal radii for the flat (rc/fl ) and steep (rc/st ) meridian as well as corneal eccentricity for the nasal (enas ), temporal (etemp ), inferior (einf ) and superior (esup ) directions were measured using WAV and KER by one examiner in a randomized order...
May 7, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29710322/effects-of-milk-vs-dark-chocolate-consumption-on-visual-acuity-and-contrast-sensitivity-within-2-hours-a-randomized-clinical-trial
#3
Jeff C Rabin, Nirmani Karunathilake, Korey Patrizi
Importance: Consumption of dark chocolate can improve blood flow, mood, and cognition in the short term, but little is known about the possible effects of dark chocolate on visual performance. Objective: To compare the short-term effects of consumption of dark chocolate with those of milk chocolate on visual acuity and large- and small-letter contrast sensitivity. Design: A randomized, single-masked crossover design was used to assess short-term visual performance after consumption of a dark or a milk chocolate bar...
April 26, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29703291/continuous-light-versus-pulsed-light-accelerated-corneal-crosslinking-with-ultraviolet-a-and-riboflavin
#4
Yirui Zhu, Peter S Reinach, Hanlei Zhu, Ling Li, Fan Yang, Jia Qu, Wei Chen
PURPOSE: To determine whether the pulsed-light ultraviolet-A (UVA) accelerated corneal crosslinking (CXL) procedure is more efficacious and selective than its continuous-light counterpart in rabbits. SETTING: School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China. DESIGN: Experimental study. METHODS: Fifty-four rabbits were divided into 2 groups. Group 1 had continuous-light accelerated CXL using 9 mW/cm2 UVA for 10 minutes (5...
March 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29660046/seeing-new-opportunities-to-help-smokers-quit-a-uk-national-survey-of-optometrist-delivered-smoking-cessation-behavioural-support-interventions
#5
Fabiana Lorencatto, Shamina Asif, Jill J Francis, Alice M Harper, John G Lawrenson
Background: Smoking is a risk factor for various eye conditions. Brief smoking cessation interventions have demonstrated effectiveness when delivered by a range of healthcare professionals. Optometrists are well-placed in the community to advise otherwise healthy smokers to quit, yet remain relatively neglected in smoking cessation research and policy. In a national survey, this study investigated self-reported practices of UK optometrists for delivering brief tobacco smoking cessation interventions to patients...
April 5, 2018: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29650469/expanding-the-traditional-role-of-optometry-current-practice-patterns-and-attitudes-to-enhanced-glaucoma-services-in-ireland
#6
Catriona Barrett, James Loughman
PURPOSE: To investigate current diagnostic equipment availability and usage for glaucoma case-finding within community optometric practice, and to explore optometrists' attitudes towards an enhanced scope of clinical practice. METHODS: An anonymous survey was developed, validated, and distributed to all optometrists in Ireland. RESULTS: 199 optometrists (27% of registrants) responded to the survey. 87% had access to the traditional triad of tests necessary to conduct adequate glaucoma case finding...
April 9, 2018: Journal of Optometry
https://www.readbyqxmd.com/read/29546420/monitoring-vha-optometric-eye-exam-services-nation-wide-2014-2016
#7
Gregory Fant, Lisa Backus
Introduction: It is important to monitor the use of optometric services by Veterans and consider the implications for other optometric and vision rehabilitation services. We did not find public health reports documenting the recent utilization of Veterans Health Administration (VHA) optometric eye exam services. Methods: A cross-sectional study design was used in this secondary data analysis report. We were interested in reporting on the number of Veterans using the VHA system with at least one VHA optometric eye exam service in 2014, 2015, or 2016 within a VHA optometry clinic...
March 13, 2018: Military Medicine
https://www.readbyqxmd.com/read/29444552/optometry-facilitated-teleophthalmology-an-audit-of-the-first-year-in-western-australia
#8
Stephen E Bartnik, Stephen P Copeland, Angela J Aicken, Angus W Turner
BACKGROUND: Lions Outback Vision has run a state-wide teleophthalmology service since 2011. In September 2015 the Australian federal government introduced a Medicare reimbursement for optometry-facilitated teleophthalmology consultations under specific circumstances. This audit demonstrates the first 12 months experience with this scheme. We aim to provide practical insights for others looking to embed a telemedicine program as part of delivering outreach clinical services. METHODS: A 12-month retrospective audit was performed between September 2015 and August 2016, inclusive...
February 14, 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29424623/interprofessional-education-day-an-evaluation-of-an-introductory-experience-for-first-year-students
#9
Zachary Singer, Kevin Fung, Elaine Lillie, Jennifer McLeod, Grace Scott, Peng You, Krista Helleman
Interprofessional health care teams have been shown to improve patient safety and reduce medical errors, among other benefits. Introducing interprofessional concepts to students in full day events is an established model that allows students to learn together. Our group developed an academic day for first-year students devoted to an introductory interprofessional education (IPE) experience, 'IPE Day'. In total, 438 students representing medicine, dentistry, pharmacy and optometry gathered together, along with 25 facilitators, for IPE Day...
May 2018: Journal of Interprofessional Care
https://www.readbyqxmd.com/read/29371175/integrated-decentralized-training-for-health-professions-education-at-the-university-of-kwazulu-natal-south-africa-protocol-for-the-i-dect-project
#10
Pragashnie Govender, Verusia Chetty, Deshini Naidoo, Ntsikelelo Pefile
BACKGROUND: The Integrated Decentralized Training (i-DecT) project was created to address the current need for health care in South Africa among resource poor climates in rural and periurban settings. The University of KwaZulu-Natal (UKZN) in South Africa has embarked on a program within the School of Health Sciences (SHS) to decentralize the clinical learning platform in order to address this disparity. Framed in a pragmatic stance, this proposal is geared towards informing the roll out of decentralized clinical training (DCT) within the province of KwaZulu-Natal...
January 25, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29346038/smartphone-applications-for-amblyopia-treatment-a-review-of-current-apps-and-professional-involvement
#11
Nabin Paudel
OBJECTIVES: The objective of this study was to review games for amblyopia (lazy eye) that are commercially available in mobile applications (apps) stores and assess the involvement of eye care professionals in their development. MATERIALS AND METHODS: The Google play store and the Apple iTunes store were searched in July 2017 and updated in September 2017 for amblyopia games using the terms amblyopia, lazy eye, amblyopia therapy, lazy eye therapy, lazy eye exercises, amblyopia exercises, lazy eye games, and amblyopia games...
January 18, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29303871/a-systematic-evaluation-of-state-laws-governing-optometric-glaucoma-management-in-the-united-states-upto-2015
#12
Kevin Chodnicki, Sachin Kalarn, Laura Quinn, Henry Jampel, Osamah Saeedi
PURPOSE: To describe state laws that govern the optometric practice of glaucoma management in the United States and to correlate those laws with state demographics upto 2015. MATERIALS AND METHODS: We performed a cross-sectional ecological study of the 50 United States and the District of Columbia. Regulations governing optometric scope of practice as written by each state Board of Optometry were reviewed. Specific optometric privileges assessed included: ability to manage glaucoma independently, use of diagnostic pharmaceutical agents, use of therapeutic pharmaceutical agents (including topical and oral steroids and other oral pharmaceutical agents), IV injections, intraocular injections, therapeutic lasers, presence of defined referral, and comanagement guidelines, and hours of yearly continuing education needed for glaucoma management...
March 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29285617/advances-in-ophthalmology-and-optometry-volume-2016-1st-edition-2016-authors-myron-yanoff-jessica-ackert-mary-aronow-alan-crandall-paul-freeman-ronni-lieberman-joseph-ortiz-leonard-press-aparna-ramasubramanian-madhura-tamhankar-elaine-wu-and-allan-wulc-ebook
#13
https://www.readbyqxmd.com/read/29194230/2017-american-academy-of-optometry-ocular-photography-contest
#14
(no author information available yet)
No abstract text is available yet for this article.
December 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29174394/visual-and-binocular-status-in-elementary-school-children-with-a-reading-problem
#15
Lisa W Christian, Krithika Nandakumar, Patricia K Hrynchak, Elizabeth L Irving
PURPOSE: This descriptive study provides a summary of the binocular anomalies seen in elementary school children identified with reading problems. METHODS: A retrospective chart review of all children identified with reading problems and seen by the University of Waterloo, Optometry Clinic, from September 2012 to June 2013. RESULTS: Files of 121 children (mean age 8.6 years, range 6-14 years) were reviewed. No significant refractive error was found in 81% of children...
November 21, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/29157568/providing-primary-care-using-an-interprofessional-collaborative-practice-model-what-clinicians-have-learned
#16
Cynthia S Selleck, Matthew Fifolt, Heidi Burkart, Jennifer Sandson Frank, William A Curry, Lisle S Hites
This article details a nurse-led, interprofessional collaborative practice (IPCP) model that was developed to provide primary care to a medically indigent population in Birmingham, Alabama. Funding to develop and implement this project came from a federal Nurse Education, Practice, Quality and Retention award to the University of Alabama at Birmingham (UAB) School of Nursing, with additional support coming from the UAB Hospital and Health System. The clinic is housed within a local community-based, non-profit organization and all services, including supplies and pharmaceuticals, are provided free of charge to this vulnerable population...
November 2017: Journal of Professional Nursing: Official Journal of the American Association of Colleges of Nursing
https://www.readbyqxmd.com/read/29135718/case-report-adenocarcinoma-of-the-lacrimal-gland-presenting-as-an-abduction-deficit
#17
Crystal L DeLuca, Regina E Zimmers
SIGNIFICANCE: It is imperative to follow the clinical guidelines for abduction deficits to ensure prompt diagnosis of potentially serious etiologies and monitor only those in which a microvascular etiology is most likely. This case reports highlights a rare diagnosis of a malignant tumor of the lacrimal gland presenting as an abduction deficit. PURPOSE: Tumors of the lacrimal gland can cause abduction deficits, which may mimic an abducens nerve palsy. Abducens nerve palsies are often encountered by optometrists...
December 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29135316/final-visual-outcomes-and-treatment-received-for-children-referred-from-a-uk-primary-school-visual-screening-program-a-comparison-of-an-orthoptic-led-program-with-orthoptic-delivered-services
#18
Tess Garretty
There is little published evidence relating to the final visual acuity of children who are identified as having reduced vision at a school screening program. The school vision screening program in Leeds (led by an orthoptist but delivered by health care support workers within the school nursing team) is examined. RESULTS: 7807 children were screened in school between November 1, 2013, and September 1, 2014. Of these, 319 (4%) failed the screen and were referred to the general optometry service and 547 (7%) were referred to the Children's Community Eye Service (CCES)...
December 2017: Strabismus
https://www.readbyqxmd.com/read/29132193/impact-of-supervised-student-optometry-consultations-on-the-patient-experience
#19
Sharon A Bentley, Jane E Trevaskis, Craig A Woods, Daryl Guest, Kathleen G Watt
BACKGROUND: Understanding patient perceptions of having students involved in their clinical care is important as we strive to develop optimal models of care that integrate teaching with the best possible experience for the patient. The aim was to ascertain the impact of supervised optometry student consultations on the patient experience. METHODS: A survey comprising 45 questions was mailed to consecutive adult patients who had undergone a comprehensive eye examination at the Australian College of Optometry over a four-week period...
March 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29093554/the-prevalence-of-double-eyelid-and-the-3d-measurement-of-orbital-soft-tissue-in-malays-and-chinese
#20
Ting Yin Lu, Kathreena Kadir, Wei Cheong Ngeow, Siti Adibah Othman
This study aimed to determine the prevalence of double eyelid among two main Mongoloid ethnicities, the Malays and Chinese who reside in Malaysia. We also measured their periorbital tissue parameters for application in anthropology, optometry, ophthalmology, oculoplastic surgery and maxillofacial trauma surgery. The images of the 103 Malay and 97 Chinese volunteers were captured using indirect 3D photogrammetry, and quantitative measurement was obtained using the software provided by the manufacturer. All Malays and 70...
November 1, 2017: Scientific Reports
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