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Uncorrected refractive error

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https://www.readbyqxmd.com/read/29335095/vector-analysis-of-astigmatic-changes-and-optical-quality-outcomes-after-wavefront-guided-laser-in%C3%A2-situ-keratomileusis-using-a-high-resolution-aberrometer
#1
Juan A Durán, Elisa Gutiérrez, Rebeca Atienza, David P Piñero
PURPOSE: To assess the ocular optical quality results as well as the astigmatic changes after wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism. SETTING: Instituto Clínico-Quirúrgico Oftalmológico, Bilbao, Vizcaya, Spain. DESIGN: Prospective case series. METHODS: Thirty-three eyes having wavefront-guided LASIK with the Star S4IR excimer laser combined with the iDesign system were enrolled in the study...
December 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29281342/a-population-based-survey-of-visual-impairment-and-its-correlates-in-mahabubnagar-district-telangana-state-india
#2
Islay Mactaggart, Sarah Polack, Gvs Murthy, Hannah Kuper
PURPOSE: To estimate the prevalence and correlates of visual impairment in Mahabubnagar district, Telangana, India. METHODS: Fifty-one clusters of 80 people (all ages) were sampled with probability proportionate to size. Households within clusters were selected through the compact segment sampling. Visual acuity (VA) was measured with a tumbling "E" chart. An Ophthalmic Assistant or Vision Technician examined people with VA<6/12 in either eye. Other impairments (hearing, physical) were clinically assessed and self-reported functional difficulties measured using the Washington Group Extended Set...
December 27, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/29259902/clinical-outcomes-of-a-new-diffractive-multifocal-intraocular-lens
#3
Baha Toygar, Ozge Yabas Kiziloglu, Okan Toygar, Ali Murat Hacimustafaoglu
AIM: To evaluate clinical outcomes after implantation of a new diffractive aspheric multifocal intraocular lens (IOL) with +3.00 addition power. METHODS: This is a retrospective, consecutive case series of cataract patients who underwent bilateral implantation of the Optiflex MO/HF D012 (Moss Vision Inc. Ltd, London, UK) multifocal IOL. Patients followed for 6mo were included in the study. Data on distance, intermediate and near visual acuity, refractive error [manifest spherical equivalent (MSE)], contrast sensitivity, adverse events, subjective symptoms, spectacle independence and patient satisfaction [visual function questionnaire (VFQ)-25 questionnaire] were retrieved from electronic medical records and analyzed...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29223234/corneal-remodeling-after-implantation-of-a-shape-changing-inlay-concurrent-with-myopic-or-hyperopic-laser-in%C3%A2-situ-keratomileusis
#4
Roger F Steinert, Douglas D Koch, Beatrice Cochener, Alan Lang, Enrique Barragán-Garza, Arturo Chayet, Luis G Vargas
PURPOSE: To compare the induced addition (add)-power profile and epithelial remodeling between patients receiving hyperopic and myopic laser in situ keratomileusis (LASIK) concurrently with implantation of a corneal shape-changing inlay. SETTING: Specialty clinics in Monterrey and Tijuana, Mexico. DESIGN: Retrospective case series. METHODS: Preoperative hyperopic patients (mean spherical equivalent [SE] treatment +1...
November 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29219897/management-of-complex-epithelial-ingrowth-after-laser-in-situ-keratomileusis-using-fibrin-tissue-glue
#5
Lisa Y Chen, Jennifer S Kung, Edward E Manche
OBJECTIVES: To evaluate the efficacy and safety of adjunctive fibrin tissue glue in the treatment of complex epithelial ingrowth after laser in situ keratomileusis (LASIK). METHODS: A retrospective review was performed of 12 eyes in 12 patients treated for clinically significant epithelial ingrowth after LASIK with mechanical debridement of the ingrowth and placement of fibrin tissue glue. Primary outcome measurements including recurrence of ingrowth, visual acuity, and manifest refraction were evaluated at each postoperative examination...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29216865/effect-of-orthokeratology-on-myopia-progression-twelve-year-results-of-a-retrospective-cohort-study
#6
Yueh-Chang Lee, Jen-Hung Wang, Cheng-Jen Chiu
BACKGROUND: Several studies reported the efficacy of orthokeratology for myopia control. Somehow, there is limited publication with follow-up longer than 3 years. This study aims to research whether overnight orthokeratology influences the progression rate of the manifest refractive error of myopic children in a longer follow-up period (up to 12 years). And if changes in progression rate are found, to investigate the relationship between refractive changes and different baseline factors, including refraction error, wearing age and lens replacement frequency...
December 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29215393/therapeutic-effects-of-lamellar-keratoplasty-on-terrien-marginal-degeneration
#7
Lin Li, Hualei Zhai, Lixin Xie, Jun Cheng, Weiwei Liu
PURPOSE: To evaluate the therapeutic effects of lamellar keratoplasty (LK) on Terrien marginal degeneration (TMD). METHODS: Retrospective interventional case series. Medical records of 63 patients (71 eyes) who received LK for TMD at Qingdao Eye Hospital, Shandong Eye Institute from December 1995 to March 2014 were reviewed. A total of 56 eyes were treated with partial LK and 15 eyes with total LK. Complications, visual acuity recovery, and graft status were evaluated...
December 5, 2017: Cornea
https://www.readbyqxmd.com/read/29208347/usefulness-of-bandage-contact-lenses-in-the-immediate-postoperative-period-after-uneventful-myopic-lasik
#8
Mar Seguí-Crespo, Javier Parra Picó, Pedro Ruíz Fortes, Alberto Artola Reig, Francisco J Blanes-Mompó, Rafael J Pérez-Cambrodí
PURPOSE: To determine the usefulness of a silicone-hydrogel bandage contact lens (BCL) in the immediate postoperative period after uneventful myopic laser in-situ keratomileusis (LASIK). METHODS: The study design was randomized but not masked and data collection was prospective. This study comprised 51 consecutive myopic eyes intervened by means of the LASIK technique to compensate their refractive error. Patients were randomly assigned to two different groups. The experimental group included 24 eyes of 12 patients that were fitted with a BCL immediately after the flap replacement...
December 2, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29185116/standard-transepithelial-and-iontophoresis-corneal-cross-linking-clinical-analysis-of-three-surgical-techniques
#9
Settimio Rossi, Carmine Santamaria, Rosa Boccia, Luigi De Rosa, Francesco Maria D'Alterio, Francesca Simonelli, Giuseppe De Rosa
BACKGROUND: To evaluate the clinical results of standard, transepithelial (TE) and iontophoresis (I) corneal cross-linking (CXL), in patients with progressive keratoconus. METHODS: Thirty eyes of 30 patients with progressive keratoconus treated by CXL (10 by standard-CXL, 10 by TE-CXL and 10 by I-TE-CXL) with 12 months of follow-up. Pre- and postoperative ophthalmologic testing were: uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), refractive examination (spherical error, spherical equivalent), corneal topography (corneal astigmatism, simulated maximum, minimum and average keratometry), aberrometry (coma and spherical aberration), pachymetry and endothelial cell density...
November 28, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29181324/the-prevalence-of-uncorrected-refractive-error-in-urban-suburban-exurban-and-rural-primary-school-children-in-indonesian-population
#10
Indra Tri Mahayana, Sagung Gede Indrawati, Suhardjo Pawiroranu
Uncorrected refractive error (URE) is a major health problem among school children. This study was aimed to determine the frequency and patterns of URE across 4 gradients of residential densities (urban, exurban, suburban and rural). This was a cross-sectional study of school children from 3 districts in Yogyakarta and 1 district near Yogyakarta, Indonesia. The information regarding age, sex, school and school grader were recorded. The Snellen's chart was used to measure the visual acuity and to perform the subjective refraction...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29165934/first-rapid-assessment-of-avoidable-blindness-survey-in-the-maldives-prevalence-and-causes-of-blindness-and-cataract-surgery
#11
Ubeydulla Thoufeeq, Taraprasad Das, Hans Limburg, Maharshi Maitra, Lapam Panda, Asim Sil, John Trevelyan, Yuddha Sapkota
PURPOSE: A nationwide rapid assessment of avoidable blindness survey was undertaken in the Maldives among people aged 50 years or more to assess the prevalence and causes of blindness and visual impairment, cataract surgical coverage, cataract surgery outcome, and barriers to uptake of cataract surgical services. DESIGN: Prospective population-based study. METHODS: In the cluster sampling probability proportionate to size method, 3100 participants in 62 clusters across all 20 atolls were enrolled through house-to-house visits...
November 22, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/29161310/vision-in-high-level-football-officials
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#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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