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https://www.readbyqxmd.com/read/29161310/vision-in-high-level-football-officials
#1
António Manuel Gonçalves Baptista, Pedro M Serra, Colm McAlinden, Brendan T Barrett
Officiating in football depends, at least to some extent, upon adequate visual function. However, there is no vision standard for football officiating and the nature of the relationship between officiating performance and level of vision is unknown. As a first step in characterising this relationship, we report on the clinically-measured vision and on the perceived level of vision in elite-level, Portuguese football officials. Seventy-one referees (R) and assistant referees (AR) participated in the study, representing 92% of the total population of elite level football officials in Portugal in the 2013/2014 season...
2017: PloS One
https://www.readbyqxmd.com/read/29133652/hospital-anxiety-and-depression-scale-assessment-of-100-patients-before-and-after-using-low-vision-care-a-prospective-study-in-a-tertiary-eye-care-setting
#2
Pukhraj Rishi, Ekta Rishi, Aditya Maitray, Ashutosh Agarwal, Sridevi Nair, Sarika Gopalakrishnan
PURPOSE: Assessment of anxiety and depression in patients attending low vision care (LVC) using Hospital Anxiety and Depression Scale (HADS). METHODS: In this prospective, observational study, 100 patients with best-corrected visual acuity (BCVA) worse than 6/18 in the better eye or limitation of field of vision to <10° from center of fixation were assessed on the depression and anxiety subscales of HADS questionnaire before and after LVC. HADS is a 14-item scale with seven items each for anxiety and depression subscales...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29127516/vision-and-visual-history-in-elite-near-elite-level-cricketers-and-rugby-league-players
#3
Brendan T Barrett, Jonathan C Flavell, Simon J Bennett, Alice G Cruickshank, Alex Mankowska, Julie M Harris, John G Buckley
BACKGROUND: The importance of optimal and/or superior vision for participation in high-level sports remains the subject of considerable clinical research interest. Here, we examine the vision and visual history of elite/near-elite cricketers and rugby-league players. METHODS: Stereoacuity (TNO), colour vision, and distance (with/without pinhole) and near visual acuity (VA) were measured in two cricket squads (elite/international-level, female, n = 16; near-elite, male, n = 23) and one professional rugby-league squad (male, n = 20)...
November 10, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29122820/comparing-a-new-hydroexpression-technique-with-conventional-forceps-method-for-smile-lenticule-removal
#4
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/29118708/corneal-collagen-cross-linking-combined-with-an-artiflex-iris-fixated-anterior-chamber-phakic-intraocular-lens-implantation-in-a-patient-with-progressive-keratoconus
#5
Sharif Hashmani, Nauman Hashmani, Roha Saeed Memon
We present here the case of a 24-year-old male who experienced progressive keratoconus and vision loss which adversely affected his ability to carry out everyday tasks. This landed him in the Hashmanis Hospital for consultation. He had a preoperative best corrected visual acuity of 6/12. He underwent multiple Oculus Pentacam examinations, which showed progressive keratoconus. Corneal collagen cross-linking (CXL) was performed to stabilize his cornea and, subsequently, an Artiflex anterior chamber iris-fixated phakic intraocular lens (ACIF-PIOL) was implanted to alleviate his refractive errors...
September 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29117420/intraoperative-optical-coherence-tomography-guided-management-of-cap-lenticule-adhesion-during-smile
#6
Jayanand Urkude, Jeewan S Titiyal, Namrata Sharma
PURPOSE: To report successful lenticule extraction using intraoperative optical coherence tomography (OCT) in a case of cap-lenticule adhesion during small incision lenticule extraction (SMILE). METHODS: Case report. RESULTS: A 22-year-old patient with a refractive error of -5.00 -0.50 × 120° and -5.00 -0.75 × 60° in the right and left eyes, respectively, was scheduled for SMILE. The lenticule was created using the VisuMax femtosecond laser system (Carl Zeiss Meditec, Jena, Germany)...
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29110438/comparison-of-noncycloplegic-and-cycloplegic-autorefraction-in-categorizing-refractive-error-data-in-children
#7
Padmaja Sankaridurg, Xiangui He, Thomas Naduvilath, Minzhi Lv, Arthur Ho, Earl Smith, Paul Erickson, Jianfeng Zhu, Haidong Zou, Xun Xu
PURPOSE: To systematically analyse the differences between cycloplegic and noncycloplegic refractive errors (RE) in children and to determine if the predictive value of noncycloplegic RE in categorizing RE can be improved. METHODS: Random cluster sampling was used to select 6825 children aged 4-15 years. Autorefraction was performed under both noncycloplegic and cycloplegic (induced with 1% cyclopentolate drops) conditions. Paired differences between noncycloplegic and cycloplegic spherical equivalent (SE) RE were determined...
November 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29081490/a-nomogram-to-improve-predictability-of-small-incision-lenticule-extraction-surgery
#8
Gang Liang, Xu Chen, Xu Zha, Fengju Zhang
BACKGROUND This study aimed to determine and validate that use of a nomogram could enhance the predictability of small-incision lenticule extraction (SMILE) surgery. MATERIAL AND METHODS 195 eyes from 98 patients were enrolled in group 1, and 46 eyes from 26 patients in group 2. Uncorrected and corrected distance visual acuity (UDVA and CDVA), manifest refraction spherical equivalent (SE) preoperatively and 1 day, 1 week, 1 month, and 3 months postoperatively were measured. A nomogram based on the error in SE correction was generated by using multifactor regression method in group 1...
October 30, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29064950/epidemiology-of-reduced-visual-acuity-among-chinese-multiethnic-students
#9
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
https://www.readbyqxmd.com/read/29042749/a-review-of-results-after-implantation-of-a-secondary-intraocular-lens-to-correct-residual-refractive-error-after-cataract-surgery
#10
Kjell Gunnar Gundersen, Rick Potvin
PURPOSE: The purpose of this study was to provide clinical outcomes data related to secondary intraocular lens (IOL) implantation for the correction of residual refractive error after cataract surgery. PATIENTS AND METHODS: A chart review was conducted to identify all eyes implanted with the monofocal spherical or toric AddOn(®) secondary IOL. Data were collated from charts where uncomplicated initial cataract surgery was completed. Measures of interest included the original IOL implanted, the postoperative refractive error (before secondary IOL implantation) and the associated corrected and uncorrected visual acuities (VAs)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29032195/global-causes-of-blindness-and-distance-vision-impairment-1990-2020-a-systematic-review-and-meta-analysis
#11
Seth R Flaxman, Rupert R A Bourne, Serge Resnikoff, Peter Ackland, Tasanee Braithwaite, Maria V Cicinelli, Aditi Das, Jost B Jonas, Jill Keeffe, John H Kempen, Janet Leasher, Hans Limburg, Kovin Naidoo, Konrad Pesudovs, Alex Silvester, Gretchen A Stevens, Nina Tahhan, Tien Y Wong, Hugh R Taylor
BACKGROUND: Contemporary data for causes of vision impairment and blindness form an important basis of recommendations in public health policies. Refreshment of the Global Vision Database with recently published data sources permitted modelling of cause of vision loss data from 1990 to 2015, further disaggregation by cause, and forecasts to 2020. METHODS: In this systematic review and meta-analysis, we analysed published and unpublished population-based data for the causes of vision impairment and blindness from 1980 to 2014...
October 10, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/29032110/use-of-donors-predisposed-by-corneal-collagen-cross-linking-in-penetrating-keratoplasty-for-treating-the-patients-with-keratoconus
#12
Ting Huang, Ruifen Ye, Chen Ouyang, Chao Hou, Yunwei Hu, Qianni Wu
PURPOSE: To investigate whether use of donors predisposed by corneal collagen cross-linking (CXL) reduced myopic refractive errors for keratoconic eyes after penetrating keratoplasty (PK). DESIGN: Randomized controlled trial. METHODS: One hundred sixteen eyes of 116 patients with keratoconus from Zhongshan Ophthalmic Center were enrolled. Using stratified block randomization, eligible eyes were assigned to CXL graft group (Group1) or conventional graft group (Group2)...
October 12, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29022293/correlation-between-uncorrected-visual-acuity-and-macular-distortion-in-idiopathic-epiretinal-membrane-patients
#13
Jang Hoon Lee, Sung Pyo Park, Yong Kyu Kim
PURPOSE: To evaluate the association between degree of retinal abnormalities and uncorrected visual acuity (UCVA) in idiopathic epiretinal membrane (ERM) patients with a small amount of refractive error. METHODS: We retrospectively reviewed 49 eyes (37 patients) of idiopathic ERM patients. We investigated the association between visual acuity and macular status (central macular thickness [CMT], outer retinal integrity score, and inner retinal irregularity index) that was assessed by optical coherence tomography using multiple linear regression analysis...
August 26, 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/29018762/visual-performance-after-excimer-laser-photorefractive-keratectomy-for-high-myopia
#14
Yu-Ling Liu, Chien-Chi Tseng, Chang-Ping Lin
PURPOSE: To evaluate the efficacy, safety, predictability, and visual performance of excimer laser photorefractive keratectomy (PRK) for myopia greater than -8 diopters (D). METHODS: Fifty-four patients (104 eyes) with myopia from -8D to -13D and cylinder up to -4D received surface ablation technique with the Allegretto wave version 1009-1 excimer laser to correct their refractive error. The patients were examined on days 1, 3, 7, and 14 and 1, 3, 6, and 12 months postoperatively...
April 2017: Taiwan Journal of Ophthalmology
https://www.readbyqxmd.com/read/28985110/uncorrected-and-corrected-refractive-error-experiences-of-nepalese-adults-a-qualitative-study
#15
Himal Kandel, Jyoti Khadka, Mohan Krishna Shrestha, Sadhana Sharma, Sandhya Neupane Kandel, Purushottam Dhungana, Kishore Pradhan, Bhagavat P Nepal, Suman Thapa, Konrad Pesudovs
PURPOSE: The aim of this study was to explore the impact of corrected and uncorrected refractive error (URE) on Nepalese people's quality of life (QoL), and to compare the QoL status between refractive error subgroups. METHODS: Participants were recruited from Tilganga Institute of Ophthalmology and Dhulikhel Hospital, Nepal. Semi-structured in-depth interviews were conducted with 101 people with refractive error. Thematic analysis was used with matrices produced to compare the occurrence of themes and categories across participants...
October 6, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28969172/prevalence-of-refractive-errors-and-number-needed-to-screen-among-rural-high-school-children-in-southern-india-a-cross-sectional-study
#16
Deepika Dorothy John, Padma Paul, Evon Selina Kujur, Sarada David, Smitha Jasper, Jayaprakash Muliyil
INTRODUCTION: Avoidable blindness is mainly due to uncorrected refractive errors (URE). School Eye Screening (SES) can be used as an initiative to address this issue. AIM: To determine prevalence of URE and Number Needed to Screen (NNS) to find one child with low vision or blindness from URE among rural school children. MATERIALS AND METHODS: A cross-sectional study was performed in 22 government schools with sixth to ninth grades in Kaniyambadi block of Vellore District of Tamil Nadu, India...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28953601/management-of-reverse-pellucid-type-topography
#17
Hanefi Çakır, Canan Asli Utine
PURPOSE: Evaluation of the etiopathogenesis and management of topographic reverse pellucid pattern after rigid intraocular lens (IOL) implantation with wide limbal clear corneal incision (CCI). METHODS: Fifteen eyes with a history of gradual decrease in vision after IOL surgery with at least 6.5-mm CCI were diagnosed with wound dehiscence and were managed with tight resuturation, delayed, and selective suture removal. The improvement in uncorrected and corrected distance visual acuities (UDVA and CDVA, respectively) and refractive errors were analyzed, at least 6 months postoperatively...
September 26, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28948045/long-term-follow-up-of-intrastromal-corneal-ring-segments-in-paracentral-keratoconus-with-coincident-corneal-keratometric-comatic-and-refractive-axes-stability-of-the-procedure
#18
Luis Fernández-Vega Cueto, Carlos Lisa, David Madrid-Costa, Jesús Merayo-Lloves, José F Alfonso
PURPOSE: To assess the long-term outcomes of implanting intrastromal corneal ring segments (ICRS) in paracentral keratoconic eyes. METHODS: 58 eyes with paracentral keratoconus with coincident refractive, keratometric, and comatic axes were evaluated. Uncorrected (UDVA) and corrected (CDVA) distance visual acuity and refractive errors were recorded before and at all follow-up visits. The postoperative follow-up was 5 years. Patients were divided into two groups: group I (30 years old or younger) and group II (more than 30 years old)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28937870/student-led-screening-of-school-children-for-refractive-error-correction
#19
Dipesh Bhattarai, Subodh Gnyawali, Arpan Silwal, Sudan Puri, Anita Shrestha, Man Bahadur Kunwar, Madan Prasad Upadhyay
PURPOSE: Detection and correction of uncorrected refractive errors among 12 million children is an overwhelming task for the 500 currently available eye-care professionals in Nepal. A mid-term review of VISION 2020 goals in Nepal has recommended utilizing alternative human resources that could screen children for visual impairment. This study was conducted to assess the validity of vision screening of school children by trained high school students when compared to optometrist testing as the gold standard...
September 22, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28913512/the-distribution-of-negative-and-positive-relative-accommodation-and-their-relationship-with-binocular-and-refractive-indices-in-a-young-population
#20
AbbasAli Yekta, Hassan Hashemi, Mehdi Khabazkhoob, Hadi Ostadimoghaddam, Somayeh Ghasemi-Moghaddam, Ebrahim Jafarzadehpur, Fereshteh Shokrollahzadeh
PURPOSE: To determine the distribution of negative relative accommodation (NRA) and positive relative accommodation (PRA) and its relationship with binocular vision indices in a young population. METHODS: In this cross-sectional study conducted in a student population, samples were selected through multistage cluster sampling. All the samples underwent the measurement of uncorrected and corrected visual acuity and refraction. Then far and near cover tests were performed...
September 2017: Journal of Current Ophthalmology
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