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Eye optometry

Akilesh Gokul, Dipika V Patel, Grant A Watters, Charles N J McGhee
BACKGROUND/AIMS: To determine if significant progression of disease occurs in older, non-contact lens wearing, subjects with keratoconus and to identify potential predictive factors. METHODS: Clinical and computerised corneal topography records of subjects with keratoconus attending a specialist optometry practice were retrospectively analysed to identify those aged ≥30 years, with ≥2 consultations ≥12 months apart, no contact lens wear and no corneal scarring, surgery or corneal hydrops...
October 11, 2016: British Journal of Ophthalmology
Sowmya Ravikumar, Arthur Bradley, Shrikant Bharadwaj, Larry N Thibos
PURPOSE: To test the hypothesis that binocular depth of field can be expanded while retaining high-quality vision at intermediate distances by combining anisometropia (monovision) and simultaneous vision bifocals. SETTING: School of Optometry, Indiana University, Bloomington, Indiana, USA. DESIGN: Prospective research study. METHODS: A computational polychromatic model was used to simulate retinal images as seen through a pseudophakic eye with a diffractive bifocal for a range of target distances...
September 2016: Journal of Cataract and Refractive Surgery
Jyoti Khadka, Eva Fenwick, Ecosse Lamoureux, Konrad Pesudovs
PURPOSE: There is an increasing demand for high-standard, comprehensive, and reliable patient-reported outcome (PRO) instruments in all the disciplines of health care including in ophthalmology and optometry. Over the past two decades, a plethora of PRO instruments have been developed to assess the impact of eye diseases and their treatments. Despite this large number of instruments, significant shortcomings exist for the measurement of ophthalmic quality of life (QoL). Most PRO instruments are short-form instruments designed for clinical use, but this limits their content coverage often poorly targeting any study population other than that which they were developed for...
September 23, 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Philip Raey Kidd Turnbull, Oliver James Munro, John Robert Phillips
PURPOSE: A number of optical methods for slowing myopia progression have been tested and are now available. However, data on real-world use in clinical use is scarce. Here, we present a review of the clinical outcomes for patients attending a specialist myopia control clinic at The University of Auckland Optometry School, NZ. CASE SERIES: We report a comparative case series of 110 patients (aged 4-33 years, mean: 12.13 ± 4.58 years, 62% female) who attended the clinic between 2010 and 2014...
September 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Kevin E Houston, Eleftherios I Pachalis, Danielle C Angueira, P Matthew Bronstad, Anna M Barrett, Mary Alexis Iaccarino
Visual impairments are common after traumatic brain injury (TBI) and negatively affect quality of life. We describe a 39-year-old woman with a severe TBI who was evaluated by the inpatient optometry and vision rehabilitation service with findings of complete right homonymous hemianopia and right cranial nerve III palsy with 30-degree right exotropia (eye turn out) and complete right ptosis (eyelid will not open). The 30-degree exotropia advantageously generated 30 degrees of right visual field expansion when the right ptosis was treated with a magnetic levator prosthesis, which restores eyelid opening...
August 22, 2016: American Journal of Physical Medicine & Rehabilitation
Sara Ortiz-Toquero, Virginia Zuñiga, Guadalupe Rodriguez, Victoria de Juan, Raul Martin
PURPOSE: To compare the anterior corneal measurements between Placido-based topography and dual-Scheimpflug topography in healthy and keratoconus eyes. SETTING: Optometry Research Group, Instituto Universitario de Oftalmobiología Aplicada, University of Valladolid, Valladolid, Spain. DESIGN: Comparative case series. METHODS: The mean simulated keratometry (K), flat K, steep K, astigmatism power, corneal astigmatism axis, J0, J45, maximum corneal power point, and white-to-white (WTW) distance were collected and compared between healthy eyes and keratoconus eyes...
August 2016: Journal of Cataract and Refractive Surgery
R Zhu, K-L Long, X-M Wu, Q-D Li
OBJECTIVE: To compare the refractive errors measured by the VISX WaveScan, OPD-Scan III and the subjective refraction. The optometry accuracy of computer operated aberrometer used before refractive surgery has been debatable. Hence, a clear study on the role of such automated equipment in optometry is the need of the hour as compared to subjective refraction. PATIENTS AND METHODS: Seventy-six patients (152 eyes) were recruited from January 2013 to December 2013...
July 2016: European Review for Medical and Pharmacological Sciences
Gonzalo Carracedo, Alberto Recchioni, Nicolás Alejandre-Alba, Alba Martin-Gil, Laura Batres, Ignacio Jimenez-Alfaro Morote, Jesús Pintor
PURPOSE: Based on the relationship between keratoconus and dry eye, the aim of this study was to evaluate changes in signs and symptoms of dry eye in keratoconus patients before and after intrastromal corneal ring surgery. METHODS: Fifteen keratoconus patients were enrolled in Fundación Jiménez-Díaz of Madrid and University Clinic of Optometry of the Universidad Complutense de Madrid (Madrid, Spain). Tear break up time (TBUT), Schirmer test without anesthesia, corneal staining, diadenosine tetraphosphate (Ap4A) concentration, and ocular surface disease index (OSDI) were evaluated...
July 22, 2016: Current Eye Research
Robert P Finger, Jing Xie, Kathy Fotis, Sumit Parikh, Rob Cummins, Paul Mitchell, Robyn H Guymer
BACKGROUND: Late neovascular age-related macular degeneration (nvAMD) is very common and causes irreversible severe visual loss unless treated swiftly with vascular endothelial growth factor (VEGF) inhibitors. Although publicly subsidized access to treatment may be inequitable, which is why we assessed treatment provision across Australia. DESIGN: Secondary analysis of Australian data PARTICIPANTS: All Pharmaceutical Benefits Scheme (incl. Repatriation PBS) beneficiaries METHODS: Treatment and incidence data were obtained from Medicare Australia, the Royal Australian and New Zealand College of Ophthalmologists, Optometry Australia, the Blue Mountains Eye Study, and the Australian Bureau of Statistics...
July 23, 2016: Clinical & Experimental Ophthalmology
Irene J Tan, Lucy P Dobson, Stephen Bartnik, Josephine Muir, Angus W Turner
INTRODUCTION: Advances in imaging capabilities and the evolution of real-time teleophthalmology have the potential to provide increased coverage to areas with limited ophthalmology services. However, there is limited research assessing the diagnostic accuracy of face-to-face teleophthalmology consultation. This systematic review aims to determine if real-time teleophthalmology provides comparable accuracy to face-to-face consultation for the diagnosis of common eye health conditions. METHODS: A search of PubMed, Embase, Medline and Cochrane databases and manual citation review was conducted on 6 February and 7 April 2016...
July 20, 2016: Journal of Telemedicine and Telecare
Arne Ohlendorf, Alexander Leube, Siegfried Wahl
PURPOSE: To investigate the inter-device agreement and mean differences between a newly developed digital phoropter and the two standard methods (trial frame and manual phoropter). METHODS: Refractive errors of two groups of participants were measured by two examiners (examiner 1 (E1): 36 subjects; examiner 2 (E2): 38 subjects). Refractive errors were assessed using a trial frame, a manual phoropter and a digital phoropter. Inter-device agreement regarding the measurement of refractive errors was analyzed for differences in terms of the power vector components (spherical equivalent (SE) and the cylindrical power vector components J0 and J45) between the used methods...
2016: Healthcare (Basel, Switzerland)
W H Pan, X Z Bi, X P Yu, Z M Song
Objective: To evaluate the safety and effectiveness of the Suture Canalization, which is a kind of Schlemm canal surgery, on the treatment of patients with primary open angle glaucoma (POAG). Methods: Retrospective cases series study. Fifty-two patients (52 eyes) with POAG were recruited from October 2007 to July 2009 from Hospital of Optometry and Ophthalmology, Wenzhou Medical University. Twenty-six patients (26 eyes) were included in the study group, who were treated with the Suture Canalization surgery with trabeculectomy...
June 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
Davin Johnson, Sherif R El-Defrawy, Simon Hollands, Jonathan Hurst, Christine Law, Cody Li, Stephanie Baxter, Erica de L P Campbell, Robert J Campbell
OBJECTIVE: To report on patterns of optometry prescribing and adherence to prescribing regulations at a tertiary care ophthalmology centre. DESIGN: Prospective cohort study. PARTICIPANTS: All new referrals from optometrists and other health care professionals to the emergency eye care service (n = 1965) between July 2011 and June 2012, as well as optometry referrals to 2 subspecialty services (glaucoma [n = 71] and cornea [n = 212]). METHODS: In our primary analysis, the frequency of prescribing and classes of medications prescribed were reported and compared amongst various referral sources to the emergency eye care service...
June 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
R Norman Bailey
BACKGROUND: The history surrounding the development of codes of ethics and other official statements of desired professional conduct adopted by the American Optometric Association (AOA) reveals the struggle optometry faced in the United States ofAmerica (USA) in establishing itself as a leading primary health care profession. METHODS: Information regarding the events and documents reported in this paper were obtained through research of the historical literature and archival material held in The Archives & Museum of Optometry at the American Optometric Association's headquarters at 243 N...
January 2016: Hindsight: Newsletter of the Optometric Historical Society
Kelly K Nichols, Jason Bacharach, Edward Holland, Thomas Kislan, Lee Shettle, Orsolya Lunacsek, Barb Lennert, Caroline Burk, Vaishali Patel
PURPOSE: To assess the effect of dry eye disease on work productivity and performance of non-work-related activities, and patients' satisfaction with over-the-counter (OTC) dry eye treatments. METHODS: In this prospective, noninterventional, cross-sectional study, conducted at 10 U.S. optometry/ophthalmology practices, 158 symptomatic dry eye patients naïve to prescription medication underwent standard dry eye diagnostic tests and completed Work Productivity and Activity Impairment (WPAI) and Ocular Surface Disease Index (OSDI) questionnaires...
June 1, 2016: Investigative Ophthalmology & Visual Science
Shihao Chen, Tommy C Y Chan, Jia Zhang, Ping Ding, Jason C K Chan, Marco C Y Yu, Yini Li, Vishal Jhanji, Qinmei Wang
PURPOSE: To report the 1-year visual and keratometric results of epithelium-on corneal collagen crosslinking (CXL) for advanced keratoconus (median maximum keratometry [K] ≥58.0 diopters [D]). SETTING: School of Ophthalmology and Optometry and Eye Hospital of Wenzhou Medical College, Wenzhou, China. DESIGN: Prospective case series. METHODS: Patients with bilateral progressive keratoconus had tetracaine-enhanced epithelium-on CXL...
May 2016: Journal of Cataract and Refractive Surgery
Kam Chun Ho, Isabelle Jalbert, Kathleen Watt, Blanka Golebiowski
OBJECTIVES: To examine the relationship between dry eye symptoms and adiposity in a population study. METHODS: A prospective cross-sectional single-visit preliminary study was designed to sample ocular symptoms and indices of adiposity in the general adult population. Patients recruited from the UNSW optometry clinic, the university campus and surrounding community, and overseas were invited to complete a survey composed of the short form Dry Eye Questionnaire (SFDEQ) (Dry Eye Questionnaire-5 or Contact Lens Dry Eye Questionnaire-8) and the Ocular Comfort Index (OCI) via hardcopy or online...
May 27, 2016: Eye & Contact Lens
Erin M Rueff, Robin Joy Varghese, Taylor M Brack, Danica E Downard, Melissa D Bailey
PURPOSE: To determine why presbyopic patients discontinue contact lens wear and describe their opinions of comfort and visual quality with contact lenses. METHODS: A survey assessing current age, gender, contact lens material/design, and opinions of contact lens comfort and visual quality was mailed to 2400 presbyopic patients (age 40 years and older) that have had eye exams in the Ohio State University College of Optometry's Contact Lens Services over the last 4 years...
August 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Miguel A Zapata, Gabriel Arcos, Alex Fonollosa, Maximino Abraldes, Andrea Oleñik, Estanislao Gutierrez, Jose Garcia-Arumi
PURPOSE: Describe the first 3 years of highly specialized retinal screening through a web platform using a retinologists' network for image reading. METHODS: All patients who came to centers in the network and consented to fundus photography were included. Images were evaluated by ophthalmologists. We describe number of patients, age, visual acuity, retinal abnormalities, medical recommendations, and factors associated with abnormal retinographies. RESULTS: Fifty thousand three hundred eighty-four patients were included; mean age 52...
May 26, 2016: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
James R Auvil
Appreciation for combat eye protection steadily increased following World War II. Products derived from experiences in World War I, World War II, Korea, Vietnam, and the Iran/Iraq war drove technical improvements throughout the 1980s and 1990s. Dismal wear compliance prior to 2004 indicates Soldiers and their leaders did not appreciate these improvements and found little value in the bulky, ugly, and uncomfortable products. In 2003, the 10th Mountain Division requested enhanced eye protection. Program Executive Office Soldier, the optometry consultant to the Army Surgeon General, members of the Tri-Service Vision Conservation and Readiness Program, and other subject matter experts selected and tested commercial off-the-shelf eye protection against military ballistic impact standards...
April 2016: U.S. Army Medical Department Journal
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