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https://www.readbyqxmd.com/read/29120975/refractive-error-in-a-sample-of-black-high-school-children-in-south-africa
#1
Samuel Otabor Wajuihian, Rekha Hansraj
SIGNIFICANCE: This study focused on a cohort that has not been studied and who currently have limited access to eye care services. The findings, while improving the understanding of the distribution of refractive errors, also enabled identification of children requiring intervention and provided a guide for future resource allocation. PURPOSE: The aim of conducting the study was to determine the prevalence and distribution of refractive error and its association with gender, age, and school grade level...
November 9, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29117610/-evaluation-of-ophthalmic-follow-up-care-of-former-pre-term-and-full-term-infants-aged-from-4-to-10-years-in-germany-results-of-the-wiesbaden-prematurity-study-wps
#2
Achim Fieß, Ruth Kölb-Keerl, Heike Maria Elflein, Alexander K Schuster, Markus Knuf, Bernd Kirchhof, Isabel Oberacher-Velten, Philipp S Muether, Jacqueline Bauer
Background The purpose of this investigation was to analyse the ophthalmic follow-up care of former pre-term and full-term born infants aged 4 to 10 years in the clinical practice and the comparison to the recommendations of the national ophthalmic guidelines. Methods For the prospective Wiesbaden Prematurity Study (WPS), 503 infants were examined: 239 former pre-term infants (PT) with gestational age (GA) ≤ 32 weeks and 264 former full-term born infants (FT) with a GA ≥ 37 weeks aged 4 to 10 years...
November 8, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29109659/amblyopia-in-children-analysis-among-preschool-and-school-children-in-the-city-of-tuzla-bosnia-and-herzegovina
#3
Amra Nadarevic Vodencarevic, Vahid Jusufovic, Meliha Halilbasic, Emina Alimanovic, Svjetlana Terzic, Emir Cabric, Aida Drljevic, Mufid Burgic
Aim: This study measured the prevalence of amblyopia in preschool and school children between 4 and 15 years of age in Tuzla, Bosnia and Herzegovina and as well and to examine its relations with anisometropia and strabismus. Methods: Children from eight daycare centers and twenty four elementary schools were screened for amblyopia by volunteer personnel (medical students), any child who failed to pass the screening examination, was referred to the ophthalmologist for complete examination at University Clinic Center Tuzla...
September 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/29071723/immediate-cortical-adaptation-in-visual-and-non-visual-areas-functions-induced-by-monovision
#4
Fabrizio Zeri, Marika Berchicci, Shehzad A Naroo, Sabrina Pitzalis, Francesco Di Russo
KEY POINTS: Monovision is an optical correction for presbyopes that consists of correcting one eye for far distance and the other for near distance, creating a superimposition of an in-focus with a blurred image. Brain adaptation to monovision was studied in unexperienced observers by measuring visual evoked potentials from 64-channels. The first clear effect of monovision on visual evoked potentials was the C1 amplitude reduction, indicating that the unilateral blurring induced by monovision reduces feed-forward activity in primary visual area...
October 25, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28988161/should-tumbling-e-go-out-of-date-in-amblyopia-screening-evidence-from-a-population-based-sample-normative-in-children-aged-3-4-years
#5
Sandra Guimaraes, Tiago Fernandes, Patrício Costa, Eduardo Silva
AIMS: To determine a normative of tumbling E optotype and its feasibility for visual acuity (VA) assessment in children aged 3-4 years. METHODS: A cross-sectional study of 1756 children who were invited to participate in a comprehensive non-invasive eye exam. Uncorrected monocular VA with crowded tumbling E with a comprehensive ophthalmological examination were assessed. Testability rates of the whole population and VA of the healthy children for different age subgroups, gender, school type and the order of testing in which the ophthalmological examination was performed were evaluated...
October 7, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28953639/comparison-of-perceptual-eye-positions-among-patients-with-different-degrees-of-anisometropia
#6
Cheng Yang, Xue Li, Guanrong Zhang, Jianqing Lan, Yan Zhang, Hang Chu, Juan Li, Wenjuan Xie, Shujun Wang, Li Yan, Jin Zeng
The aim of this study is to compare the perceptual eye positions (PEPs) among patients with different degrees of anisometropia.A total of 157 patients were recruited into this retrospective study. A detailed ophthalmic examination was conducted on each patient. The degree of refractive errors in the presence of astigmatism was converted into the degree of spherical equivalent (SE). Patients were divided into 3 groups according to the interocular SE difference: severe anisometropia group with interocular SE difference ≥2...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28915835/macular-retinal-and-choroidal-thickness-in-unilateral-amblyopia-using-swept-source-optical-coherence-tomography
#7
Syunsuke Araki, Atsushi Miki, Katsutoshi Goto, Tsutomu Yamashita, Go Takizawa, Kazuko Haruishi, Yoshiaki Ieki, Junichi Kiryu, Kiyoshi Yaoeda
BACKGROUND: To investigate macular retinal and choroidal thickness in amblyopic eyes compared to that in fellow and normal eyes using swept-source optical coherence tomography (SS-OCT). METHODS: This study examined 31 patients with hyperopic anisometropic amblyopia (6.9 ± 3.8 years, mean ± standard deviation), 15 patients with strabismic amblyopia without anisometropia (7.9 ± 4.2 years), and 24 age-matched controls (7.8 ± 3.3 years). Retinal and choroidal thickness was measured by 3D scans using SS-OCT...
September 15, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28902771/attention-and-visual-motor-integration-in-young-children-with-uncorrected-hyperopia
#8
MULTICENTER STUDY
Marjean Taylor Kulp, Elise Ciner, Maureen Maguire, Maxwell Pistilli, T Rowan Candy, Gui-Shuang Ying, Graham Quinn, Lynn Cyert, Bruce Moore
SIGNIFICANCE: Among 4- and 5-year-old children, deficits in measures of attention, visual-motor integration (VMI) and visual perception (VP) are associated with moderate, uncorrected hyperopia (3 to 6 diopters [D]) accompanied by reduced near visual function (near visual acuity worse than 20/40 or stereoacuity worse than 240 seconds of arc). PURPOSE: To compare attention, visual motor, and visual perceptual skills in uncorrected hyperopes and emmetropes attending preschool or kindergarten and evaluate their associations with visual function...
October 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28889226/stereopsis-and-fusion-in-anisometropia-according-to-the-presence-of-amblyopia
#9
Hyun Sun Jeon, Dong Gyu Choi
PURPOSE: To evaluate the level of stereopsis and fusion in patients with anisometropia according to the presence of amblyopia. METHODS: We included 107 children with anisometropia, divided into groups with non-amblyopic anisometropia (NA, n = 72) and amblyopic anisometropia (AA, n = 35). Normal subjects without anisometropia were enrolled in the control group (n = 73). Main outcome measures were the level of stereopsis and sensory fusion as evaluated by Titmus stereotest and Worth 4-dot test, respectively, using anisometropic glasses...
September 9, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28873168/vision-screening-in-children-aged-6-months-to-5-years-us-preventive-services-task-force-recommendation-statement
#10
David C Grossman, Susan J Curry, Douglas K Owens, Michael J Barry, Karina W Davidson, Chyke A Doubeni, John W Epling, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, Maureen G Phipps, Michael Silverstein, Melissa A Simon, Chien-Wen Tseng
Importance: One of the most important causes of vision abnormalities in children is amblyopia (also known as "lazy eye"). Amblyopia is an alteration in the visual neural pathway in a child's developing brain that can lead to permanent vision loss in the affected eye. Among children younger than 6 years, 1% to 6% have amblyopia or its risk factors (strabismus, anisometropia, or both). Early identification of vision abnormalities could prevent the development of amblyopia. Subpopulation Considerations: Studies show that screening rates among children vary by race/ethnicity and family income...
September 5, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28873167/vision-screening-in-children-aged-6-months-to-5-years-evidence-report-and-systematic-review-for-the-us-preventive-services-task-force
#11
REVIEW
Daniel E Jonas, Halle R Amick, Ina F Wallace, Cynthia Feltner, Emily B Vander Schaaf, Callie L Brown, Claire Baker
Importance: Preschool vision screening could allow detection and treatment of vision abnormalities during a critical developmental stage, preserving function and quality of life. Objective: To review the evidence on screening for and treatment of amblyopia, its risk factors, and refractive error in children aged 6 months to 5 years to inform the US Preventive Services Task Force. Data Sources: MEDLINE, Cochrane Library, CINAHL, and trial registries through June 2016; references; and experts, with surveillance of the literature through June 7, 2017...
September 5, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28858003/refractive-status-in-nepalese-pre-term-and-full-term-infants-early-in-life
#12
Samir Uprety, Priya Morjaria, Jyoti B Shrestha, Gauri S Shrestha, Safal Khanal
SIGNIFICANCE: This study suggests that pre-term infants, even without retinopathy of prematurity, are at risk for abnormal refractive development and informs the need for close monitoring of refractive error in such infants, regardless of their retinopathy of prematurity status. PURPOSE: The present study aims to investigate the refractive error trend in Nepalese pre-term infants without retinopathy of prematurity (ROP) in the first 6 months of life and explore the association of refractive error with birth weight (BW) and gestational age (GA)...
October 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28831303/pseudoamblyopia-in-congenital-cyclotropia
#13
Antonio Frattolillo, Filippo Tassi, Valentina Di Croce, Costantino Schiavi
PURPOSE: To study the effect of surgery on amblyopia and suppression associated with congenital cyclovertical strabismus. METHODS: The fixation pattern was investigated with microperimetry before and soon after surgery in ten consecutive children operated for congenital superior oblique palsy at the S. Martino Hospital, Belluno, Italy, between September 2014 and December 2015. Changes in visual performance in terms of best-corrected visual acuity (BCVA) and stereopsis between the day before and one week after surgery were also evaluated...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28814414/amblyopia-and-strabismus-trends-in-prevalence-and-risk-factors-among-young-adults-in-israel
#14
Yinon Shapira, Yossy Machluf, Michael Mimouni, Yoram Chaiter, Eedy Mezer
AIMS: To estimate the prevalence of amblyopia, present strabismus and amblyopia risk factors (ARFs) among young adults in Israel and to analyse trends over time of prevalence rates. METHODS: We conducted a cross-sectional study including 107 608 pre-enlistees aged 17.4±0.6 years born between 1971 and 1994. Across the birth years, the following trends of prevalence rates among young adults were analysed: prevalence of amblyopia, prevalence of strabismus, severity of amblyopia and prevalence of ARFs (strabismsus, anisometropia and isoametropia)...
August 16, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28791058/stereoacuity-after-wavefront-guided-photorefractive-keratectomy-in-anisometropia
#15
Farid Karimian, Vahid Ownagh, Mohammad Aghazadeh Amiri, Seyed Mehdi Tabatabaee, Nooshin Dadbin
PURPOSE: To determine changes in stereoacuity in anisometropic myopic eyes after photorefractive keratectomy (PRK). METHODS: Myopic patients with at least 1 diopter (D) of anisometropia in sphere, astigmatism, or spherical equivalent who were referred to our hospital for excimer refractive surgery were enrolled as a prospective sequential interventional case series. All patients underwent wavefront-guided photorefractive keratectomy (WFG-PRK) using the Technolas Perfect Vision (217z) Excimer laser machine...
July 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28774525/v4b-implantable-collamer-lens-versus-intacs-corneal-rings-to-manage-anisometropic-myopic-amblyopia-in-children
#16
Sherif Ahmed Eissa, Mohamed Wagih El-Deeb, Mahmoud Salah Hendawi
OBJECTIVE: To compare the safety and efficacy of phakic intraocular lens (PIOL) versus intrastromal corneal ring segments (Intacs), for correcting high myopic anisometropia in amblyopic children. DESIGN: Nonrandomized prospective multi-center study. PARTICIPANTS: Thirty children, aged between 4 and 12 years, with unilateral high myopic anisometropic amblyopia were included in this study. METHODS: Patients who were prospectively subdivided into group A, with mean preoperative manifest refraction spherical equivalent (MRSE) of -12...
August 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28762432/prevalence-of-uncorrected-refractive-errors-among-children-aged-3-10-years-in-western-saudi-arabia
#17
Nojood Hameed R Alrahili, Esraa S Jadidy, Bayan Sulieman H Alahmadi, Mohammed F Abdula'al, Alaa S Jadidy, Abdulaziz A Alhusaini, Moaz A Mojaddidi, Maan A Al-Barry
To determine the prevalence of uncorrected refractive errors (URE) among children 3-10 years and to affirm the necessity of a national school-based visual screening program for school-aged children. Methods: This retrospective cross-sectional study was conducted in Medina, Saudi Arabia in 2015. Children were selected through a multistage stratified random sampling from 8 kindergarten and 8 primary schools. Those included were screened to diagnose UREs using a visual acuity chart and an auto refractometer according to American guidelines...
August 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28757690/prognostic-preoperative-factors-for-successful-outcome-of-surgery-in-horizontal-strabismus
#18
Namita Kumari, Abadan Khan Amitava, Mohammad Ashraf, Shivani Grover, Ashiya Khan, Prabha Sonwani
CONTEXT: Surgery for horizontal strabismus reportedly has a success rate of 60%-80%. However, which preoperative factors are predictive of this success is not clear. AIMS: To identify prognostic factors those are predictive of successful outcome in horizontal strabismus surgery. SETTINGS AND DESIGN: Observational analytical study using multiple logistic regression (MLR). SUBJECTS AND METHODS: We assessed the medical records of patients who had undergone first-time horizontal muscle strabismus surgery between 2002 and 2013, where complete follow-up data were available for ≥6 weeks, and also, we collected data prospectively on patients operated between January 2014 and September 2015...
May 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28745654/-analysis-of-corneal-biomechanical-changes-after-femtosecond-laser-assisted-laser-in-situ-keratomileusis-in-children-with-hyperopic-anisometropia
#19
I L Kulikova, O V Shlenskaya, N V Chapurin
AIM: to analyze corneal hysteresis (CH) and corneal resistance factor (RF) readings obtained with the Reichert Ocular Response Analyzer (ORA) before and after hyperopic femtolaser-assisted laser in situ keratomileusis (FS-LASIK) in children with anisometropia as well as to establish factors that may cause changes in these parameters. MATERIAL AND METHODS: CH and RF were evaluated before and 1.5 years after FS-LASIK performed on amblyopic eyes of 28 patients aged 6-14 years...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28743725/altered-balance-of-receptive-field-excitation-and-suppression-in-visual-cortex-of-amblyopic-macaque-monkeys
#20
Luke E Hallum, Christopher Shooner, Romesh D Kumbhani, Jenna G Kelly, Virginia García-Marín, Najib J Majaj, J Anthony Movshon, Lynne Kiorpes
In amblyopia, a visual disorder caused by abnormal visual experience during development, the amblyopic eye (AE) loses visual sensitivity whereas the fellow eye (FE) is largely unaffected. Binocular vision in amblyopes is often disrupted by interocular suppression. We used 96-electrode arrays to record neurons and neuronal groups in areas V1 and V2 of six female macaque monkeys (Macaca nemestrina) made amblyopic by artificial strabismus or anisometropia in early life, as well as two visually normal female controls...
August 23, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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