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https://www.readbyqxmd.com/read/29051327/asymmetrical-accommodation-in-hyperopic-anisometropic-amblyopia
#1
Sonia Toor, Anna M Horwood, Patricia Riddell
BACKGROUND/AIMS: To investigate the presence of asymmetrical accommodation in hyperopic anisometropic amblyopia. METHODS: Accommodation in each eye and binocular vergence were measured simultaneously using a PlusoptiX SO4 photorefractor in 26 children aged 4-8 years with hyperopic anisometropic amblyopia and 13 controls (group age-matched) while they viewed a detailed target moving in depth. RESULTS: Without spectacles, only 5 (19%) anisometropes demonstrated symmetrical accommodation (within the 95% CI of the mean gain of the sound eye of the anisometropic group), whereas 21 (81%) demonstrated asymmetrical accommodation...
October 19, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28991610/intraocular-lens-power-calculation-for-eyes-with-high-and-low-average-keratometry-readings-comparison-between-various-formulas
#2
Olga Reitblat, Adi Levy, Guy Kleinmann, Tsahi T Lerman, Ehud I Assia
PURPOSE: To compare the accuracy of intraocular lens power prediction for eyes with average keratometry (K) readings greater than 46.00 diopters (D) and lower than 42.00 D. SETTING: Ein-Tal Eye Center, Tel-Aviv, Israel. DESIGN: Retrospective case series. METHODS: Eyes having cataract extraction surgery with steep and flat preoperative corneal curvatures determined with the Lenstar-LS900 device were enrolled. Refractive prediction errors for the Barrett Universal II, Haigis, Hill-RBF, Hoffer-Q, Holladay 1, Holladay 2, Olsen, and SRK/T formulas were compared...
September 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28980564/-%C3%B0-comparative-analysis-of-the-magnitude-of-the-distance-and-lens-induced-objective-accommodative-response-in-patients-with-different-refraction
#3
E P Tarutta, N A Tarasova, S G Аrutyunyan, M V Maksimova
AIM: To study the magnitude of objective accommodative response (OAR) with account to the method of image defocusing. The latter can be realized by bringing the object nearer to the eye or by adding a minus lens in front of the viewer. MATERIAL AND METHODS: We examined 63 patients (126 eyes) with different refraction aged from 7 to 31 years. All patients underwent a series of OAR measurements on WR-5100K Grand Seiko Binocular Open-Field Autorefkeratometer under different conditions, including negative spherical lenses of -3...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28978931/isotope-coded-protein-label-based-quantitative-proteomic-analysis-reveals-significant-up-regulation-of-apolipoprotein-a1-and-ovotransferrin-in-the-myopic-chick-vitreous
#4
Feng-Juan Yu, Thomas Chuen Lam, Long-Qian Liu, Rachel Ka-Man Chun, Jimmy Ka-Wai Cheung, King-Kit Li, Chi-Ho To
This study used isotope-coded protein label (ICPL) quantitative proteomics and bioinformatics analysis to examine changes in vitreous protein content and associated pathways during lens-induced eye growth. First, the vitreous protein profile of normal 7-day old chicks was characterized by nano-liquid chromatography electrospray ionization tandem mass spectrometry. A total of 341 unique proteins were identified. Next, myopia and hyperopia were induced in the same chick by attaching -10D lenses to the right eye and +10D lenses to the left eye, for 3 and 7 days...
October 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28965357/in-vivo-confocal-microscopic-investigation-of-the-cornea-after-autologous-implantation-of-lenticules-obtained-through-small-incision-lenticule-extraction-for-treatment-of-hyperopia
#5
Meiyan Li, Meng Li, Ling Sun, Tian Han, Lan Ding, Jun Xiang, Xingtao Zhou
PURPOSE: To investigate re-innervation in the implanted lenticule, as well as changes to the cornea, after correcting hyperopia with an autologous implantation of a lenticule obtained through small incision lenticule extraction (SMILE). METHODS: This study retrospectively analysed re-innervation in the implanted lenticule, as well as microscopic morphological changes in the corneal architecture of the recipient cornea in five patients (with myopia in one eye and hyperopia in the contralateral eye) who received SMILE in the myopic eye and femtosecond laser in situ keratomileusis (FS-LASIK) combined with lenticule implantation in the contralateral hyperopic eye...
October 1, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28951074/accuracy-of-intraocular-lens-calculation-formulas
#6
Ronald B Melles, Jack T Holladay, William J Chang
PURPOSE: To compare the accuracy of intraocular lens (IOL) calculation formulas (Barrett Universal II, Haigis, Hoffer Q, Holladay 1, Holladay 2, Olsen, and SRK/T) in the prediction of postoperative refraction using a single optical biometry device. DESIGN: Retrospective consecutive case series. PARTICIPANTS: A total of 13 301 cataract operations with an AcrySof SN60WF implant and 5200 operations with a SA60AT implant (Alcon Laboratories, Inc...
September 23, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28944206/comparison-of-fda-safety-and-efficacy-data-for-kamra-and-raindrop-corneal-inlays
#7
Majid Moshirfar, Jordan D Desautels, Ryan T Wallace, Nicholas Koen, Phillip C Hoopes
AIM: To provide a side-by-side analysis of the summary of safety and effectiveness data (SSED) submitted to the FDA for the KAMRA and Raindrop corneal inlays for the correction of presbyopia. METHODS: SSED reports submitted to the FDA for KAMRA and Raindrop were compared with respect to loss of corrected distance visual acuity (CDVA), adverse event rates, induction of astigmatism, retention of contrast sensitivity, stability of manifest refractive spherical equivalent (MRSE), and achieved monocular uncorrected near visual acuity (UNVA) at 24mo...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28931183/-presbyopia-treatment-solution-by-laser-surgery
#8
Bojan Pajic, Horace Massa, Erika N Eskina
Today there are different options for correcting presbyopia by corneal laser procedure, but all of them have their benefits and compromises. The Monovision is a pseudoaccommodation procedure which works with an anisometropy of up to 2 D. The smaller the anisometropy is the faster a neuroadaptation will be achieved. There could be a decrease of binocularity. The monovision is not well supported by all patients, thus it is important to simulate this correction by contact lenses before surgery. The PresbyLASIK is a corneal multifocal solution for presbyopia correction for emmetropic, myopic and hyperopic eyes...
September 20, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28924444/implantation-of-a-multifocal-toric-intraocular-lens-after-radial-keratotomy-and-cross-linking-with-hyperopia-and-astigmatism-residues-a-case-report
#9
Raffaele Nuzzi, Francesca Monteu, Federico Tridico
Radial keratotomy is a refractive surgical technique, widely used in the 80s and early 90s to correct myopia and astigmatism, but now overcome by more recent laser techniques. Important consequences, often in patients with more than 45 years of age, are progressive hyperopic shift and/or an increase in corneal astigmatism, whose main cause seems to be an increase in the curvature radius of the central portion of the cornea. This seems to be due to radial keratotomy incisions - with the consequent need for cross-linking - intraocular pressure, and corneal biomechanical parameters...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28917415/bilateral-corneal-epithelial-macrocysts-following-hyperopic-laser-in-situ-keratomileusis
#10
Mahmoud O Jaroudi, Carole G Cherfan, Shady T Awwad
A 27-year-old woman had microkeratome-assisted laser in situ keratomileusis (LASIK) for moderate bilateral hyperopia. The preoperative ophthalmologic examination was unremarkable except for minimal lissamine green staining bilaterally on the nasal conjunctiva. On the first postoperative day, the uncorrected distance visual acuity (UDVA) was 20/20 bilaterally and the corneas were clear. Four days later, the patient presented with mild blur in both eyes. Examination showed diffuse bilateral epithelial cysts encompassing the central 6...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28916480/factors-associated-with-zonular-instability-during-cataract-surgery-in-eyes-with-acute-angle-closure-attack
#11
Junki Kwon, Kyung Rim Sung
PURPOSE: To compare the demographics and ocular characteristics, including anterior segment optical coherence tomography images and zonular instability, in eyes with a history of acute angle closure (AAC) attack and subsequent cataract surgery. DESIGN: Retrospective case-control study. METHODS: A total of 68 eyes of 56 patients with a history of AAC attack who underwent cataract surgery were enrolled. Fourteen eyes were assigned to the zonular instability (+) group and 54 were assigned to the zonular instability (-) group based on the presence of zonular instability during cataract surgery...
September 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28915835/macular-retinal-and-choroidal-thickness-in-unilateral-amblyopia-using-swept-source-optical-coherence-tomography
#12
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/28913512/the-distribution-of-negative-and-positive-relative-accommodation-and-their-relationship-with-binocular-and-refractive-indices-in-a-young-population
#13
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
https://www.readbyqxmd.com/read/28902771/attention-and-visual-motor-integration-in-young-children-with-uncorrected-hyperopia
#14
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/28880335/refractive-outcomes-of-20-eyes-undergoing-icl-implantation-for-correction-of-hyperopic-astigmatism
#15
Efekan Coskunseven, Isilay Kavadarli, Onurcan Sahin, Belma Kayhan, Ioannis Pallikaris
PURPOSE: To analyze 1-week, 1-month, and 12-month postoperative refractive outcomes of eyes that under-went ICL implantation to correct hyperopic astigmatism. METHODS: The study enrolled 20 eyes of patients with an average age of 32 years (range: 21 to 40 years). The outcomes of spherical and cylindrical refraction, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), vault, and angle parameters were evaluated 1 week, 1 month, and 12 months postoperatively...
September 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28875960/analysis-of-macular-and-retinal-nerve-fiber-layer-thickness-in-children-with-refractory-amblyopia-after-femtosecond-laser-assisted-laser-in-situ-keratomileusis-a-retrospective-study
#16
Peng-Fei Zhao, Yue-Hua Zhou, Jing Zhang, Wen-Bin Wei
Background: Localized macular edema and retinal nerve fiber layer (RNFL) thinning have been reported shortly after laser in situ keratomileusis (LASIK) in adults. However, it is still unclear how LASIK affects the retina of children. This study aimed to investigate the macular retina and RNFL thickness in children with refractive amblyopia who underwent femtosecond laser-assisted LASIK (FS-LASIK). Methods: In this study, we included 56 eyes of 32 patients with refractive amblyopia who underwent FS-LASIK in our hospital from January 2012 to December 2016...
September 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28861357/the-evolution-of-refractive-status-in-chinese-infants-during-the-first-year-of-life-and-its-affected-factors
#17
Shu-Juan Yu, Guo-Hua Liu, Yi Liu, Jing Huang, Ming-Lei Han, Bo-Jun Zhao, Zhong-Tao Gai
AIM: To study the evolution of the refractive status and examine the affected factors in infants during the first year of life in a large sample size in China. METHODS: A total of 1258 babies (2516 eyes) aged 32wk gestational age to 1y participated in the study, including 766 premature and 492 full-term infants. First, each baby received an orthoptic examination, slit-lamp checking and fundus imaging. Patients with diseases which might affect refractive status were excluded from the cohort...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28861350/refractive-errors-and-biometry-of-primary-angle-closure-disease-in-a-mixed-malaysian-population
#18
Jelinar Mohamed-Noor, Dhaniah Abd-Salam
AIM: To assess the refractive status, anterior chamber depth (ACD) and axial length (AL) of patients with primary angle-closure disease (PACD). METHODS: Retrospective cohort. Data was collected from charts of all PACD patients treated from April 2013 to December 2015. Analysis was done on 137 patient charts with complete biometric data. Patient demographics, PACD type, refractive status (spherical equivalent), ACD and AL were studied. RESULTS: The median age of 137 subjects [53 with primary angle-closure suspects (PACS), 27 with primary angle-closure (PAC) and 57 with primary angle-closure glaucoma (PACG)] was 68y (range 21-88y)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28855546/the-effect-of-topical-administration-of-cyclopentolate-on-ocular-biometry-an-analysis-for-mouse-and-human-models
#19
Furong Huang, Shenghai Huang, Ruozhong Xie, Yanan Yang, Jiaofeng Yan, Xiaowen Cao, Chunlan Zhang, Feng Zhou, Meixiao Shen, Jia Qu, Xiangtian Zhou
Mydriasis with muscarinic antagonists have been used routinely prior to retinal examination and sometimes prior to refractive measurements of the mouse eye. However, biometric changes during topical administration of muscarinic antagonists have not been fully investigated in mice and humans. We found that the mouse eyes treated with cyclopentolate developed a hyperopia with a reduction in both the vitreous chamber depth and axial length. In humans, prior to the cyclopentolate treatment, a 6D accommodative stimulus produced a myopic shift with a reduced anterior chamber depth, choroidal thickness and anterior lens radius of curvature and an increase in lens thickness...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28854269/six-year-changes-in-refraction-and-related-ocular-biometric-factors-in-an-adult-chinese-population
#20
Xiaotong Han, Xinxing Guo, Pei Ying Lee, Ian G Morgan, Mingguang He
PURPOSE: To investigate longitudinal changes in refraction and biometry in Chinese adults. DESIGN: Population-based prospective cohort study. METHODS: 1817 subjects aged ≥ 35 years were randomly recruited from Yuexiu district, Guangzhou, China in 2008. Of which 1595 (87.8%) were reexamined in 2010 and 1427 (78.5%) were reexamined in 2014. Non-cycloplegic automated refraction and visual acuity test were performed at baseline and the 6-year follow-up examination for all participants...
2017: PloS One
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