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https://www.readbyqxmd.com/read/28646980/binocular-vision-in-the-twenty-first-century
#1
Kenneth J Ciuffreda
No abstract text is available yet for this article.
July 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28646441/safety-efficacy-and-refractive-outcomes-of-lasik-surgery-in-patients-aged-65-or-older
#2
Paloma López-Montemayor, Jorge E Valdez-García, Denise Loya-García, Julio C Hernandez-Camarena
PURPOSE: Report on the safety, efficiency and refractive outcomes of LASIK surgery in patients aged 65 or older. METHODS: This study includes a case series of patients ≥65 years that underwent corneal refractive surgery during the period June 2010 to June 2015 at Hospital Zambrano Hellion, Monterrey, Mexico. Inclusion criteria were normal topography, central corneal thickness >500 μm, preoperative manifest refraction spherical equivalent (MRSE) up to -8...
June 23, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28642003/strabismus-and-binocular-diplopia-due-to-advanced-glaucomatous-visual-field-loss
#3
Cheryl L Khanna, Jonathan M Holmes
PURPOSE: To describe a small series of patients with glaucoma whose strabismus and binocular diplopia were due to advanced visual field loss and inability to maintain sensory and motor fusion. METHODS: This study is an observational case series of 3 patients with binocular diplopia, associated with variable strabismus, which was due to advanced visual field loss. RESULTS: Specific characteristics of the strabismus associated with advanced glaucomatous visual field loss were a subjective floating second image and marked variability of the prism and alternate cover measurements...
June 19, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28641258/quality-assessment-of-perceptual-crosstalk-on-two-view-auto-stereoscopic-displays
#4
Jongyoo Kim, Taewan Kim, Sanghoon Lee, Alan C Bovik
Crosstalk is one of the most severe factors affecting the perceived quality of stereoscopic 3D (S3D) images. It arises from a leakage of light intensity between multiple views, as in auto-stereoscopic displays. Well-known determinants of crosstalk include the co-location contrast and disparity of the left and right images, which have been dealt with in prior studies. However, when a natural stereo image that contains complex naturalistic spatial characteristics is viewed on an auto-stereoscopic display, other factors may also play an important role in the perception of crosstalk...
June 19, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28639448/-hybrid-monovision
#5
P Studený, M Kacerovský, J Kacerovská, N Gajarová, Z Straňák
AIM: To evaluate our own results of the use of hybrid monovision technique, in patients after bilateral cataract surgery, where in the dominant eye the monofocal intraocular lens is implanted and in the non-dominant eye the multifocal intraocular lens (IOL) is implanted. MATERIAL AND METHODS: Prospective follow-up of group of 33 patients with bilateral cataract surgery and induced hybrid monovision. In the dominant eye, the hydrophilic monofocal aspheric intraocular lens Auroflex (Aurolab) was implanted, and in the non-dominant eye the hydrophilic multifocal aspheric intraocular lens Seelens (Hanita) was implanted...
2017: Ceská a Slovenská Oftalmologie
https://www.readbyqxmd.com/read/28637820/dynamic-mechanisms-of-visually-guided-3d-motion-tracking
#6
Kathryn L Bonnen, Alexander C Huk, Lawrence Kevin Cormack
The continuous perception of motion-through-depth is critical both for navigation and interacting with objects in a dynamic three dimensional (3D) world. Here we used 3D tracking to simultaneously assess the perception of motion in all directions, facilitating comparisons of responses to motion-through-depth to frontoparallel motion. Observers manually tracked a stereoscopic target as it moved in a 3D Brownian random walk. We found that continuous tracking of motion-through-depth was selectively impaired, showing different spatiotemporal properties compared to frontoparallel motion tracking...
June 21, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28636883/the-effects-of-monocular-training-on-binocular-functions-in-anisometropic-amblyopia
#7
Wuli Jia, Fangfang Lan, Zhao Xin, Zhong-Lin Lu, Chang-Bing Huang, Wuxiao Zhao, Min Li
PURPOSE: It's been shown that intensive monocular perceptual learning can improve visual acuity, contrast sensitivity, and vernier acuity in the amblyopic eye in adults with amblyopia. It is however not clear how much monocular training can enhance binocular visual functions. In the current study, we aimed to evaluate effects of monocular training on a variety of binocular functions. METHODS: Nineteen anisometropic amblyopes (18.5±1.26 yrs) were trained in a grating contrast detection task near each individual's cutoff spatial frequency for 6 to 10 days (630 trials/day)...
June 18, 2017: Vision Research
https://www.readbyqxmd.com/read/28636141/binocular-facilitation-of-cone-specific-visual-evoked-potentials-in-colour-deficiency
#8
Jeff Rabin, Andrew Kryder, Dan Lam
BACKGROUND: Neural compensatory mechanisms have been proposed, which preserve the binocular visual field in glaucoma, as well as cognition in Alzheimer's disease and motor function in Parkinson's disease. It is conceivable that comparable mechanisms operate to preserve function in congenital and/or dystrophic disease. In hereditary colour vision deficiency (CVD), we observed significant facilitation in the amplitude of the binocular cone-specific visual evoked potential (VEP) compared to the monocular amplitude for the cone type corresponding to the CVD...
June 21, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28633028/visual-perception-neural-networks-for-stereopsis
#9
Jenny C A Read, Bruce G Cumming
How does our brain use differences between the images in our two eyes, binocular disparities, to generate depth perception? New work shows that a type of neural network trained on natural binocular images can learn parameters that match key properties of visual cortex. Most information is conveyed by cells which sense differences between the two eyes' images.
June 19, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28628952/seeking-comfort-in-an-uncomfortable-chair
#10
Elena Molinari
The author explores the concept of comfort in relation to the setting. The concept of comfort, an unusual word in the psychoanalytic lexicon, describes the intuitive and complex experience of patient and analyst being together in the analytic office. The couch and the chair are not the only tools of the setting, but they are potential instruments with which to study the therapeutic process, both in high-frequency therapy and in lower-frequency treatments. To describe the transformations that an alternative experience of comfort can promote, the author looks at the intersection of this concept with the body-mind relationship and with the Bionian concept of binocular vision...
April 2017: Psychoanalytic Quarterly
https://www.readbyqxmd.com/read/28625338/acute-diplopia-in-the-pediatric-emergency-department-a-cohort-multicenter-italian-study
#11
Umberto Raucci, Pasquale Parisi, Nicola Vanacore, Francesco La Penna, Valentina Ferro, Lucia Calistri, Claudia Bondone, Fabio Midulla, Agnese Suppiej, Raffaele Falsaperla, Duccio Maria Cordelli, Antonella Palmieri, Alberto Verrotti, Sabrina Becciani, Sonia Aguzzi, Mario Mastrangelo, Federica Pelizza, Filippo Greco, Giulia Carbonari, Ramona Tallone, Gabriella Bottone, Italo Trenta, Stefano Masi, Maria Pia Villa, Antonino Reale
BACKGROUND: Acute diplopia (AD) is an uncommon and distressing symptom of numerous ocular and neurological conditions, with potentially serious sequelaes. No data are present in pediatrics on the presentation and management of AD. AIM: This study investigated characteristics, etiology and health care utilization of the pediatric population with AD accessed to pediatric Emergency Departments (ED), trying to identify "red flags" associated with potentially life-threatening (LT) conditions...
June 3, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28623544/clinical-feature-and-waveform-in-infantile-nystagmus-syndrome-in-children-with-frmd7-gene-mutations
#12
Dayong Bai, Wei Shi, Zhan Qi, Wei Li, Aihua Wei, Yanhui Cui, Cheng Li, Li Li
Infant nystagmus sydrome presents as involuntary eye movement disorder and can affect seriously ocular function. We performed a retrospective study of clinical data and FRMD7 genetic test results in 12 cases of infantile nystagmus syndrome to correlate waveform, stereopsis, and visual acuity. The patients (age 6.40±2.67 years) had FRMD7 mutations as follows: missense in eight cases, shear in two cases, frameshift in one case, and non-frameshift in one case. Horizontal jerk waveform was observed in six cases, versus horizontal pendulum in five cases and dual jerk in one case...
June 14, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28621462/evidence-for-convergent-evolution-of-a-neocortex-like-structure-in-a-late-permian-therapsid
#13
Michael Laaß, Anders Kaestner
The special sensory, motor, and cognitive capabilities of mammals mainly depend upon the neocortex, which is the six-layered cover of the mammalian forebrain. The origin of the neocortex is still controversial and the current view is that larger brains with neocortex first evolved in late Triassic Mammaliaformes. Here, we report the earliest evidence of a structure analogous to the mammalian neocortex in a forerunner of mammals, the fossorial anomodont Kawingasaurus fossilis from the late Permian of Tanzania...
June 16, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28620156/the-effect-of-lasik-surgery-on-myopic-anisometropes-sensory-eye-dominance
#14
Lixia Feng, Huimin Lin, Yao Chen, Jiafeng Wang, Yonghua Wang, Rongfeng Liao, Jiawei Zhou, Robert F Hess
Lasik is a common surgery for treating anisometropia. In this study, we asked a specific question: what's the effect of Lasik surgery on anisometropes' sensory eye dominance ? Fifteen myopic anisometropes (mean age: 23 ± 6.9 years old; 6 females) participated in our experiment. We quantitatively measured participants' sensory eye dominance before and after the Lasik surgery using a binocular phase combination paradigm. We found no significant change of sensory eye dominance within 16 weeks (measured between 8 to 96 days, for one or two repetitions) after the surgery (t(14) = -1...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617728/a-comparison-of-the-effects-of-orthokeratology-lens-medcall-lens-and-ordinary-frame-glasses-on-the-accommodative-response-in-myopic-children
#15
Xiaoxia Han, Dongjun Xu, Weizhong Ge, Zhi Wang, Xiaodong Li, Weihua Liu
OBJECTIVE: To observe and compare changes in accommodative response between myopic children wearing ordinary frame glasses (OFG), Mouldway orthokeratology lenses (M-OK), and medcall lenses (ML). METHODS: A total of 240 myopic children were divided into three groups: OFG [n=90]; M-OK [n=90]; and ML [n=60]). The diopter, accommodative lag, and binocular accommodative facility before wearing glasses (T0) and 1-year after wearing glasses (T1) were compared among the three groups...
June 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28614556/binocular-therapy-for-childhood-amblyopia-improves-vision-without-breaking-interocular-suppression
#16
Manuela Bossi, Vijay K Tailor, Elaine J Anderson, Peter J Bex, John A Greenwood, Annegret Dahlmann-Noor, Steven C Dakin
Purpose: Amblyopia is a common developmental visual impairment characterized by a substantial difference in acuity between the two eyes. Current monocular treatments, which promote use of the affected eye by occluding or blurring the fellow eye, improve acuity, but are hindered by poor compliance. Recently developed binocular treatments can produce rapid gains in visual function, thought to be as a result of reduced interocular suppression. We set out to develop an effective home-based binocular treatment system for amblyopia that would engage high levels of compliance but that would also allow us to assess the role of suppression in children's response to binocular treatment...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28606268/-clinical-observation-on-monovision-of-cataract-surgery-with-different-near-addition
#17
J Mu, Y Z Li, Q Wu, L Yan, H Chen
Objective: To observe the influence on spectacle independence, satisfaction and visual function after cataract surgery monovision with different ADD. Methods: Prospective clinical study. All patients were collected from the department of ophthalmology, Shanghai JiaoTong University Affiliated Sixth People's Hospital who were diagnosed as bilateral cataract from Oct. 2013 to Mar. 2015. This study comprised 64 cases (128 eyes). All consecutive patients scheduled to undergo bilateral cataract phacoemulsification and implantation of a monofocal AcrySof IQ IOL...
June 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28604183/treatment-of-an-internal-carotid-artery-aneurysm-with-a-flow-diverter-through-a-double-lumen-balloon-catheter
#18
José M Amorim, Santiago Rosati, Ronit Agid, Vítor Mendes Pereira, Timo Krings
Background Double lumen balloon catheters (DLBCs) are currently used in the treatment of intracranial aneurysms, especially when involving balloon or stent-assisted coiling. The existing DLBCs allow the delivery of self-expandable stents but do not offer the possibility to deploy flow-diverters. Despite the increasing use and success of flow-diverters, there have been numerous reports of procedural complications such as early in-stent thrombosis or delayed distal embolization. It seems that these complications can be avoided by correct stent positioning and adequate wall apposition, achieved either by manoeuvres with the microguidewire and/or microcatheter or by performing balloon angioplasty following an exchange guidewire manoeuvre...
June 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28603771/magnitude-precision-and-realism-of-depth-perception-in-stereoscopic-vision
#19
Paul B Hibbard, Alice E Haines, Rebecca L Hornsey
Our perception of depth is substantially enhanced by the fact that we have binocular vision. This provides us with more precise and accurate estimates of depth and an improved qualitative appreciation of the three-dimensional (3D) shapes and positions of objects. We assessed the link between these quantitative and qualitative aspects of 3D vision. Specifically, we wished to determine whether the realism of apparent depth from binocular cues is associated with the magnitude or precision of perceived depth and the degree of binocular fusion...
2017: Cognitive Research: Principles and Implications
https://www.readbyqxmd.com/read/28603662/predicting-future-self-reported-motor-vehicle-collisions-in-subjects-with-primary-open-angle-glaucoma-using-the-penalized-support-vector-machine-method
#20
Kenya Yuki, Ryo Asaoka, Sachiko Awano-Tanabe, Takeshi Ono, Daisuke Shiba, Hiroshi Murata, Kazuo Tsubota
PURPOSE: We predict the likelihood of a future motor vehicle collision (MVC) from visual function data, attitudes to driving, and past MVC history using the penalized support vector machine (pSVM) in subjects with primary open-angle glaucoma (POAG). METHODS: Patients with POAG were screened prospectively for eligibility and 185 were analyzed in this study. Self-reported MVCs of all participants were recorded for 3 years from the baseline using a survey questionnaire every 12 months...
June 2017: Translational Vision Science & Technology
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