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https://www.readbyqxmd.com/read/28538337/developing-a-logarithmic-chinese-reading-acuity-chart
#1
Qi-Ming Han, Lin-Juan Cong, Cong Yu, Lei Liu
PURPOSE: An individual's reading ability cannot be reliably predicted from his/her letter acuity, contrast sensitivity, and visual field extent. We developed a set of Chinese reading acuity charts (C-READ) to assess the reading ability of Chinese readers, based on the collective wisdom of previously published reading acuity charts, especially the MNRead and the Radner Reading Charts. METHODS: The C-READ consists of three charts. Each consists sixteen 12-character simplified Chinese sentences crafted from first- to third-grade textbooks...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28534231/comparison-of-outcomes-and-complications-of-deep-anterior-lamellar-keratoplasty-and-penetrating-keratoplasty-performed-in-a-large-group-of-patients-with-keratoconus
#2
Ashbala Khattak, Fouad R Nakhli, Khaled M Al-Arfaj, Abdullah A Cheema
PURPOSE: To compare visual acuity, refraction, topography, and complications of deep anterior lamellar keratoplasty (DALK) and penetrating keratoplasty (PKP) performed in patients with keratoconus (KCN). METHODS: In this retrospective interventional non-randomized clinical study, patients with moderate to severe KCN that underwent either PKP or DALK for optical corrections were enrolled. The final outcome analysis was performed after complete suture removal for both groups of patients...
May 22, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28532936/intraoperative-aberrometry-versus-preoperative-biometry-for-intraocular-lens-power-selection-in-axial-myopia
#3
Darren C Hill, Shruti Sudhakar, Christopher S Hill, Tonya S King, Ingrid U Scott, Brett B Ernst, Seth M Pantanelli
PURPOSE: To compare the accuracy of intraoperative wavefront aberrometry (ORA) and the Hill-radial basis function (RBF) formula with other formulas based on preoperative biometry in predicting residual refractive error after cataract surgery in eyes with axial myopia. SETTING: Private practice, Harrisburg, Pennsylvania, USA. DESIGN: Retrospective consecutive case series. METHODS: Eyes with an axial length (AL) greater than 25...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532705/stereopsis-in-patients-with-refractive-accommodative-esotropia
#4
Haeng Jin Lee, Seong-Joon Kim, Young Suk Yu
PURPOSE: To investigate the factors associated with stereopsis in patients with refractive accommodative esotropia. METHODS: The medical records of patients with refractive accommodative esotropia from January 2008 to June 2016 were analyzed retrospectively. Age, sex, cycloplegic refractive error, presence of amblyopia, angle of deviation, and stereoacuity and fusional ability were evaluated. Patients were divided into good stereopsis (40-100 arcsec) and poor stereopsis (>100 arcsec) groups...
May 19, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28528993/comparison-of-cycloplegic-refraction-between-grand-seiko-autorefractor-and-retinomax-autorefractor-in-the-vision-in-preschoolers-hyperopia-in-preschoolers-vip-hip-study
#5
Gui-Shuang Ying, Maureen G Maguire, Marjean Taylor Kulp, Elise Ciner, Bruce Moore, Maxwell Pistilli, Rowan Candy
PURPOSE: To evaluate the agreement of cycloplegic refractive error measures between the Grand Seiko and Retinomax autorefractors in 4- and 5-year-old children. METHODS: Cycloplegic refractive error of children was measured using the Grand Seiko and Retinomax during a comprehensive eye examination. Accommodative error was measured using the Grand Seiko. The differences in sphere, cylinder, spherical equivalent (SE) and intereye vector dioptric distance (VDD) between autorefractors were assessed using the Bland-Altman plot and 95% limits of agreement (95% LoA)...
May 18, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28526552/anisometropia-at-age-5-years-after-unilateral-intraocular-lens-implantation-during-infancy-in-the-infant-aphakia-treatment-study-iats
#6
David Weakley, George Cotsonis, M Edward Wilson, David A Plager, Edward G Buckley, Scott R Lambert
PURPOSE: To report the prevalence of anisometropia at age 5 years after unilateral intraocular lens (IOL) implantation in infants. DESIGN: Prospective randomized clinical trial METHODS: Fifty-seven infants in the Infant Aphakia Treatment Study (IATS) with a unilateral cataract were randomized to IOL implantation with an initial targeted postoperative refractive error of either +8D (infants 28 to <48 days of age) or +6D (infants 48-210 days of age). Anisometropia was calculated at age 5 years...
May 16, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28523525/etiology-and-outcomes-of-secondary-surgical-intervention-for-dissatisfied-patients-after-pseudophakic-monovision
#7
Sayaka Kato, Misae Ito, Kimiya Shimizu, Kazutaka Kamiya
PURPOSE: To evaluate the etiology and the clinical outcomes of secondary surgical interventions for dissatisfied patients after pseudophakic monovision. SETTING: Department of Ophthalmology, Kitasato University Hospital, Kanagawa, Japan. DESIGN: Retrospective case series. METHODS: This study comprised 12 eyes in 12 patients (age 66.2 ± 5.6 years) who underwent photorefractive keratectomy (PRK) enhancement to improve their dissatisfaction after pseudophakic monovision...
May 18, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28520882/ocular-determinants-of-refractive-error-and-its-age-and-sex-related-variations-in-the-chinese-american-eye-study
#8
Grace M Richter, Mingwu Wang, Xuejuan Jiang, Shuang Wu, Dandan Wang, Mina Torres, Farzana Choudhury, Rohit Varma
Importance: Uncorrected refractive error (RE) is a leading cause of visual impairment, and variations in ocular anatomy determine RE. The unique ocular determinants of RE in Chinese American individuals have not been studied previously. Objective: To report ocular determinants of RE in a Chinese American population 50 years and older in Monterey Park, California. Design, Setting, and Participants: The Chinese American Eye Study, a population-based, cross-sectional study, was conducted from February 1, 2010, through October 31, 2013, in Monterey Park, with this particular data analysis performed from January 1 through December 31, 2016...
May 18, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28515427/pediatric-vision-screening-using-the-plusoptix-a12c-photoscreener-in-chinese-preschool-children-aged-3-to-4-years
#9
Dan Huang, Xuejuan Chen, Xiaohan Zhang, Yue Wang, Hui Zhu, Hui Ding, Jing Bai, Ji Chen, Zhujun Fu, Zijin Wang, Hu Liu
This study evaluated the performance of plusoptiX A12C in detecting amblyopia risk factors (ARFs) in Chinese children aged 3-to-4-year. PlusoptiX examination was successfully conducted among 1,766 subjects without cycloplegia to detect refractive error, asymmetry and media opacity. Cycloplegic retinoscopy (CR) was conducted on 357 children suspected of having vision abnormalities. Statistical differences between CR and the device were confirmed using the mean spherical value (+1.41 ± 0.87 D versus +1.14 ± 0...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28514829/does-hofstetter-s-equation-predict-the-real-amplitude-of-accommodation-in-children
#10
Hassan Hashemi, Payam Nabovati, Mehdi Khabazkhoob, Abbasali Yekta, Mohammad Hassan Emamian, Akbar Fotouhi
PURPOSE: The aim was to determine the distribution and associated factors of accommodative amplitude (AA) in six- to 12-year-old children and compare the results with those calculated using Hofstetter's formula. METHODS: In a cross-sectional study in 2015, random sampling was done from urban and rural populations of Shahroud, northern Iran. Participating schoolchildren were examined for manifest, cycloplegic and subjective refraction, as well as uncorrected vision and visual acuity...
May 17, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28512427/long-term-clinical-course-in-a-patient-with-complete-congenital-stationary-night-blindness
#11
Kentaro Kurata, Katsuhiro Hosono, Yoshihiro Hotta
BACKGROUND: This report describes a 45-year-old man with complete congenital stationary night blindness (CSNB1) who has been followed up for 38 years. CASE: The patient first visited our hospital as a 7-year-old boy with a complaint of low visual acuity. Best corrected visual acuity (BCVA) was 0.5 in the right eye and 0.6 in the left eye. The refractive error was approximately -5.0 D in both eyes. The fundus showed only myopic changes. A bright-flash electroretinogram (ERG) revealed a negative configuration...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28510775/progression-of-high-anisometropia-in-children
#12
Rasha H Zedan, Dina El-Fayoumi, Ahmed Awadein
PURPOSE: To investigate the onset and rate of progression of high anisometropia in myopic children younger than 13 years. METHODS: A retrospective study was performed on children with anisometropia younger than 13 years with myopia of more than 4.00 diopters (D) in the more ametropic eye and a difference in spherical equivalent refraction of 4.00 D between both eyes. All children had a complete ophthalmologic examination, including measurement of visual acuity and cycloplegic refraction every 3 to 6 months for at least 5 years...
May 15, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28503812/the-difference-between-cycloplegic-and-non-cycloplegic-autorefraction-and-its-association-with-progression-of-refractive-error-in-beijing-urban-children
#13
Zhong Lin, Balamurali Vasudevan, Kenneth J Ciuffreda, Hong Jia Zhou, Guang Yun Mao, Ning Li Wang, Yuan Bo Liang
PURPOSE: To investigate the difference between cycloplegic and non-cycloplegic autorefraction and its association with the progression of refractive error in Beijing urban children. METHODS: A total of 386 children aged 6-17 years were enrolled in the baseline investigation of the Beijing Myopia Progression Study in 2010. They were invited for follow-up vision examinations in the years 2011, 2012, and 2013, including cycloplegic (cyclopentolate 1%, three times) autorefraction...
May 15, 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28498851/myopia-and-depressive-symptoms-among-older-chinese-adults
#14
Yin Wu, Qinghua Ma, Hong-Peng Sun, Yong Xu, Mei-E Niu, Chen-Wei Pan
PURPOSE: Few population-based data support the hypothesis that refractive errors are associated with depressive symptoms. We aim to assess the impact of myopia on the risk of having depressive symptoms in a community-based cohort of elderly Chinese. METHODS: A community-based cross-sectional study of 4611 Chinese adults aged 60 years or older was conducted. Depressive symptoms were measured using the 9-item Patient Health Questionnaire (PHQ-9) depression scale in 4597 adults...
2017: PloS One
https://www.readbyqxmd.com/read/28497619/change-in-over-refraction-after-scleral-lens-settling-on-average-corneas
#15
Chelsea Bray, Stephanie Britton, Debby Yeung, Lacey Haines, Luigina Sorbara
PURPOSE: The purpose of this study was to determine the change in over-refraction, if any, after a scleral lens settled on the eye for 6-8 h. METHODS: Sixteen patients of varying refractive errors and normal corneal curvatures (measured with Pentacam(™) Oculus) were fitted with trial Mini-Scleral Design (MSD) scleral lenses (15.8 mm diameter) in one eye. The sagittal depths of the scleral lenses were selected by adding 350 μm to the corneal sagittal heights measured at a chord length of 15 mm with the Visante(™) optical coherence tomographer (OCT) anterior segment scans and picking the closest available trial lens in the set...
May 12, 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28494063/efficacy-and-adverse-effects-of-atropine-in-childhood-myopia-a-meta-analysis
#16
Qianwen Gong, Miroslaw Janowski, Mi Luo, Hong Wei, Bingjie Chen, Guoyuan Yang, Longqian Liu
Importance: Some uncertainty about the clinical value and dosing of atropine for the treatment of myopia in children remains. Objective: To evaluate the efficacy vs the adverse effects of various doses of atropine in the therapy for myopia in children. Data Sources: Data were obtained from PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials, from inception to April 30, 2016. The reference lists of published reviews and clinicaltrials...
May 11, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28492429/three-dimensional-analysis-of-submacular-perforating-scleral-vessels-by-enhanced-depth-imaging-optical-coherence-tomography
#17
Simon P Rothenbuehler, Peter Maloca, Hendrik P N Scholl, Cyrill Gyger, Andreas Schoetzau, Lorenz Kuske, Nathanael Mosimann, Sandrine A Zweifel, Daniel Barthelmes, Adnan Tufail, Pascal W Hasler
PURPOSE: To analyze submacular perforating scleral vessels (PSVs) using enhanced depth imaging spectral domain optical coherence tomography (EDI-SDOCT). METHODS: Twenty-two eyes of 11 healthy women were included in this retrospective study. Central EDI-SDOCT scans (3 × 4.5 × 1.9 mm, 13.5 mm scan area) were acquired and postprocessed by denoising, manual sclera segmentation, and PSV investigated by five graders. RESULTS: Mean age was 22.4 ± 6...
May 10, 2017: Retina
https://www.readbyqxmd.com/read/28486732/phake-intraokularlinsen
#18
Fritz H Hengerer, Ina Conrad-Hengerer
Implanting phakic IOLs (PIOLs) in phakic eyes is regarded as an established option in refractive surgery for many years when treating high myopia, hyperopia or ametropia. Even for eyes which show a combination of refractive errors (including astigmatism) this can be an appropriate option. The surgery itself requires certain anatomical and refractive requirements, since, as with any intraocular procedure, there are different possibilities of complication depending on the chosen IOL. Therefore, any potential candidate for refractive surgery should be treated in accordance with the current recommendations of the German "Commission Refractive Surgery" (KRC) to achieve the best possible refractive outcome with maximum safety for patient and surgeon...
May 9, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28486721/topography-guided-lasik-versus-small-incision-lenticule-extraction-smile-for-myopia-and-myopic-astigmatism-a-randomized-prospective-contralateral-eye-study
#19
Anastasios John Kanellopoulos
PURPOSE: To compare safety and efficacy of topography-guided LASIK and contralateral eye SMILE for myopia and myopic astigmatism correction. METHODS: This prospective, randomized contralateral eye study included 44 eyes of 22 patients with bilateral myopia or myopic astigmatism. Treated eyes were divided into two groups: 22 eyes were treated with topography-guided LASIK and the fellow eye of each patient was treated with SMILE. The following parameters were evaluated preoperatively and up to 3 months postoperatively: uncorrected distance vision acuity (UDVA), corrected distance vision acuity (CDVA), refractive error, corneal keratometry, contrast sensitivity, and Objective Scatter Index...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28481263/full-field-calibration-of-color-camera-chromatic-aberration-using-absolute-phase-maps
#20
Xiaohong Liu, Shujun Huang, Zonghua Zhang, Feng Gao, Xiangqian Jiang
The refractive index of a lens varies for different wavelengths of light, and thus the same incident light with different wavelengths has different outgoing light. This characteristic of lenses causes images captured by a color camera to display chromatic aberration (CA), which seriously reduces image quality. Based on an analysis of the distribution of CA, a full-field calibration method based on absolute phase maps is proposed in this paper. Red, green, and blue closed sinusoidal fringe patterns are generated, consecutively displayed on an LCD (liquid crystal display), and captured by a color camera from the front viewpoint...
May 6, 2017: Sensors
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