keyword
MENU ▼
Read by QxMD icon Read
search

Binocular vision

keyword
https://www.readbyqxmd.com/read/29666633/the-eeg-activity-during-binocular-depth-perception-of-2d-images
#1
Marsel Fazlyyyakhmatov, Nataly Zwezdochkina, Vladimir Antipov
The central brain functions underlying a stereoscopic vision were a subject of numerous studies investigating the cortical activity during binocular perception of depth. However, the stereo vision is less explored as a function promoting the cognitive processes of the brain. In this work, we investigated a cortical activity during the cognitive task consisting of binocular viewing of a false image which is observed when the eyes are refocused out of the random-dot stereogram plane (3D phenomenon). The power of cortical activity before and after the onset of the false image perception was assessed using the scull EEG recording...
2018: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/29660563/exploring-the-functional-nature-of-synaesthetic-colour-dissociations-from-colour-perception-and-imagery
#2
Rocco Chiou, Anina N Rich, Sebastian Rogers, Joel Pearson
Individuals with grapheme-colour synaesthesia experience anomalous colours when reading achromatic text. These unusual experiences have been said to resemble 'normal' colour perception or colour imagery, but studying the nature of synaesthesia remains difficult. In the present study, we report novel evidence that synaesthetic colour impacts conscious vision in a way that is different from both colour perception and imagery. Presenting 'normal' colour prior to binocular rivalry induces a location-dependent suppressive bias reflecting local habituation...
April 12, 2018: Cognition
https://www.readbyqxmd.com/read/29643027/-purtscher-like-retinopathy-associated-with-antibiotic-anaphylaxis
#3
Zhi-Xuan Huang, Zhi-Bing Zeng, Zhu-Ping Xu
We report a case of an 18-year-old woman with systemic antibiotic anaphylaxis who presented anasarca and bilateral visual loss two weeks after the intravenous use of pazufloxacin. Ancillary fundus tests revealed bilateral cotton-wool spots, Purtscher flecken, edema, and retinal arteriolar occlusion around the optic disc. After pulse corticosteroid, administration of anti-anaphylactic agent, and general support therapy for one month, the patient showed a favorable change, with the symptoms lessened or free systemically, except the continuous aggravation of fundus ischemic change...
March 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29625442/improved-binocular-outcomes-following-binocular-treatment-for-childhood-amblyopia
#4
Krista R Kelly, Reed M Jost, Yi-Zhong Wang, Lori Dao, Cynthia L Beauchamp, Joel N Leffler, Eileen E Birch
Purpose: Childhood amblyopia can be treated with binocular games or movies that rebalance contrast between the eyes, which is thought to reduce depth of interocular suppression so the child can experience binocular vision. While visual acuity gains have been reported following binocular treatment, studies rarely report gains in binocular outcomes (i.e., stereoacuity, suppression) in amblyopic children. Here, we evaluated binocular outcomes in children who had received binocular treatment for childhood amblyopia...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29619883/clinical-outcomes-with-a-diffractive-trifocal-intraocular-lens
#5
Jorge L Alió, Ana B Plaza-Puche, Jorge L Alió Del Barrio, Pedro Amat-Peral, Vicente Ortuño, Pilar Yébana, Olena Al-Shymali, Alfredo Vega-Estrada
PURPOSE: To evaluate clinical and visual outcomes, quality of near vision, and intraocular optical quality of patients bilaterally implanted with a trifocal PanOptix intraocular lens. METHODS: In this prospective consecutive case-series study, 52 eyes of 26 bilateral patients (mean age, 60.2 ± 7.4 years) were implanted with the AcrySof IQ Panoptix intraocular lens. Visual acuity, defocus curve, contrast sensitivity (Pelli-Robson test), near activity visual questionnaire, and internal aberrations with Osiris were evaluated...
March 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29606378/the-globe-s-eccentric-rotational-axis-why-medial-rectus-surgery-is-more-potent-than-lateral-rectus-surgery
#6
Robert A Clark, Joseph L Demer
PURPOSE: Tables typically recommend greater lateral rectus (LR) than medial rectus (MR) surgical doses for horizontal strabismus of any given magnitude, a difference unexplained by mechanical models that assume globe rotation about its center. We tested this assumption during horizontal ductions. DESIGN: Prospective observational study. PARTICIPANTS: Eighteen adult subjects with normal binocular vision. METHODS: Surface coil magnetic resonance imaging at 390 or 430 μm resolution was obtained using 2-mm-thick contiguous axial planes while subjects fixated targets in central, right, and left gaze...
March 29, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29601092/different-visual-development-norms-for-visual-acuity-in-children-with-down-s-syndrome
#7
Asma Aa Zahidi, Valldeflors Vinuela-Navarro, J Margaret Woodhouse
BACKGROUND: Visual acuity is known to be poorer in children with Down's syndrome than in age-matched controls. However, to date, clinicians do not have access to norms for children with Down's syndrome that allow differential discrimination of healthy from anomalous visual development in this population. METHODS: The Down's Syndrome Vision Research Unit at Cardiff University has been monitoring visual development in a large cohort of children since 1992. Cross-sectional data on binocular visual acuity were retrospectively analysed for 159 children up to 12 years of age in order to establish binocular acuity norms...
March 30, 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29600186/symptomatic-accommodative-and-binocular-dysfunctions-from-the-use-of-flat-panel-displays
#8
Esteban Porcar, Juan Carlos Montalt, Álvaro M Pons, Enrique España-Gregori
AIM: To determine the presence of symptomatic accommodative and non-strabismic binocular dysfunctions (ANS BD) in a non-presbyopic population of video display unit (VDU) users with flat-panel displays. METHODS: One hundred and one VDU users, aged between 20 to 34y, initially participated in the study. This study excluded contact-lens wearers and subjects who had undergone refractive surgery or had any systemic or ocular disease. First, subjects were asked about the type and nature of eye symptoms they experienced during VDU use...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29590687/comparative-study-of-the-usefulness-of-the-binocular-spot-vision-screener-autorefractor-in-the-detection-of-childhood-visual-disorders
#9
Nathalie Voide, Nicole Hoeckele, Pierre-François Kaeser
BACKGROUND: The Spot Vision Screener (SVS) is designed to detect significant ametropia, anisometropia, and strabismus in non-dilated eyes. This study evaluates the efficacy of the SVS in paediatric visual screening. PATIENTS AND METHODS: All children screened during the paediatric visual screening day in Lausanne in 2016 were evaluated with the SVS, conventional monocular autorefractors, and clinical orthoptic examination. Recommendations for a further eye examination of the SVS were compared with those issued from traditional clinical screenings (monocular refraction and orthoptic examination)...
March 28, 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29577708/-research-progress-of-the-effects-of-monocular-visual-impairment-on-binocular-vision
#10
REVIEW
S L Tan, J M Chen, M Wang, S Zhou, W T Xia
Binocular vision refers to a progress of analysing and integrating the binocular visual signals into a whole and three-dimensional sensory perception by higher nerve centre. In this process, the interac- tion between the two eyes results in the changes of output signal, which is called binocular interaction. Through a series of subjective and objective experiments, it can be concluded that binocular interaction can be divided into three types: facilitation, summation and suppression, and the forms of binocular interaction in different visual states are different...
February 2018: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29576438/light-disturbance-with-multifocal-contact-lens-and-monovision-for-presbyopia
#11
Paulo Fernandes, Ana Amorim-de-Sousa, António Queirós, Santiago Escandón-Garcia, Colm McAlinden, José Manuel González-Méijome
Dysphotopsia affects a significant number of patients, particularly after visual correction with multifocal optical designs. PURPOSE: Evaluate light distortion (LD) in two modalities of contact lens (CL) wear: multifocal (MF) and monofocal (MV). METHODS: This was a randomized, double-masked, crossover study involving 20 presbyopic patients. Patients were randomized first into either MF or MV for 15 days of use with a 1 week wash-out period between each lens type...
March 22, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29567099/short-and-long-term-visual-deprivation-leads-to-adapted-use-of-audiovisual-information-for-face-voice-recognition
#12
Stefania S Moro, Adria E N Hoover, Jennifer K E Steeves
Person identification is essential for everyday social interactions. We quickly identify people from cues such as a person's face or the sound of their voice. A change in sensory input, such as losing one's vision, can alter how one uses sensory information. We asked how people with only one eye, who have had reduced visual input during postnatal maturation of the visual system, use faces and voices for person identity recognition. We used an old/new paradigm to investigate unimodal (visual or auditory) and bimodal (audiovisual) identity recognition of people (face, voice and face-voice) and a control category, objects (car, horn and car-horn)...
March 19, 2018: Vision Research
https://www.readbyqxmd.com/read/29561497/visual-acuity-and-over-refraction-in-myopic-children-fitted-with-soft-multifocal-contact-lenses
#13
Krystal L Schulle, David A Berntsen, Loraine T Sinnott, Katherine M Bickle, Anita T Gostovic, Gilbert E Pierce, Lisa A Jones-Jordan, Donald O Mutti, Jeffrey J Walline
SIGNIFICANCE: Practitioners fitting contact lenses for myopia control frequently question whether a myopic child can achieve good vision with a high-add multifocal. We demonstrate that visual acuity is not different than spectacles with a commercially available, center-distance soft multifocal contact lens (MFCL) (Biofinity Multifocal "D"; +2.50 D add). PURPOSE: To determine the spherical over-refraction (SOR) necessary to obtain best-corrected visual acuity (BCVA) when fitting myopic children with a center-distance soft MFCL...
March 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29557827/distribution-and-progression-of-visual-field-defects-with-binocular-vision-in-glaucoma
#14
Shigeki Hashimoto, Chota Matsumoto, Mariko Eura, Sachiko Okuyama, Hiroki Nomoto, Fumi Tanabe, Tomoyasu Kayazawa, Aiko Iwase, Yoshikazu Shimomura
PURPOSE: To evaluate the distribution and progression of glaucomatous visual field (VF) defects with binocular vision. PATIENTS AND METHODS: Subjects were 167 patients (average age, 67±10.7▒y) with glaucoma who received the Humphrey 24-2 VF test (SITA-Standard) for the two eyes. Using the Best Location Algorithm, patient's integrated binocular VF (IVF) was calculated from their Humphrey 24-2 results. Of 167, 77 subjects (average age, 68±11.0▒y) also underwent monocular/binocular Humphrey Esterman tests...
March 19, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29557700/tendon-elongation-with-bovine-pericardium-in-patients-with-severe-esotropia-after-decompression-in-graves-orbitopathy-efficacy-and-long-term-stability
#15
Michael Oeverhaus, Margarethe Fischer, Herbert Hirche, Anke Schlüter, Joachim Esser, Anja K Eckstein
BACKGROUND/AIMS: We performed a retrospective analysis to examine clinical results, establish a dose-effect coefficient and analyze the long-term efficacy of tendon elongation with bovine pericardium (Tutopatch®) for surgical correction of severe esotropia, occurring after three-wall orbital decompression for dysthyroid optic neuropathy in patients with Graves' orbitopathy (GO). METHODS: Tendon elongation of the medial rectus muscle (MR) was performed in our institution using an interponate of bovine pericardium in 60 patients (27 underwent unilateral and 33 bilateral surgery)...
March 20, 2018: Strabismus
https://www.readbyqxmd.com/read/29549487/the-effects-of-partial-and-full-correction-of-refractive-errors-on-sensorial-and-motor-outcomes-in-children-with-refractive-accommodative-esotropia
#16
Nazife Sefi-Yurdakul, Hüseyin Kaykısız, Feray Koç
PURPOSE: To investigate the effects of partial and full correction of refractive errors on sensorial and motor outcomes in children with refractive accommodative esotropia (RAE). METHODS: The records of pediatric cases with full RAE were reviewed; their first and last sensorial and motor findings were evaluated in two groups, classified as partial (Group 1) and full correction (Group 2) of refractive errors. RESULTS: The mean age at first admission was 5...
March 17, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29549000/binocular-advantages-for-parafoveal-processing-in-reading
#17
Mirela Nikolova, Stephanie Jainta, Hazel I Blythe, Simon P Liversedge
During reading, binocular visual input results in superior performance and is particularly important in the pre-processing of parafoveal text prior to direct fixation. It is not yet clear whether binocular vision in the parafovea is necessary for accurate saccadic targeting, or for efficient pre-processing of upcoming text, prior to direct fixation. In the present sentence reading experiment, we used a dichoptic gaze-contingent moving window paradigm in order to establish 1) how much parafoveal binocular input is necessary for fluent reading and 2) which aspect of parafoveal processing is more reliant on binocular vision...
March 13, 2018: Vision Research
https://www.readbyqxmd.com/read/29545954/visual-and-refractive-outcomes-following-bilateral-implantation-of-extended-range-of-vision-intraocular-lens-with-micromonovision
#18
Sri Ganesh, Sheetal Brar, Archana Pawar, Kirti J Relekar
Purpose: To evaluate the outcomes following bilateral ERV intraocular lens implantation with micromonovision. Methods: 25 subjects underwent bilateral Tecnis Symfony IOL implantation with micromonovision. The dominant eye was targeted for emmetropia and the nondominant eye for myopia of -0.75 D. Uncorrected and corrected distance (UDVA, CDVA), intermediate (UIVA, CIVA), and near visual acuity (UNVA, DCNVA); reading performance; defocus curve; and contrast sensitivity were studied...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29541278/combined-office-based-vergence-therapy-and-home-therapy-system-for-convergence-insufficiency-in-egyptian-children
#19
Tarek Nehad, Tamer Salem, Mohamed Nagy Elmohamady
Background: Convergence Insufficiency (CI) is a common binocular vision disorder characterized by exophoria more at near than at far, a receded Near Point of Convergence (NPC), and decreased Positive Fusional Vergence (PFV) at near. This disorder is often associated with several symptoms that may disturb the person's quality of life. Therefore, diagnosis and treatment of CI is a vital issue. Objectives: To compare therapeutic yield of Office Based Vision Therapy (OBVT) and combined OBVT with Home Therapy System (HTS) in patients with CI...
2018: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/29534348/screening-for-convergence-insufficiency-in-school-age-children
#20
Anne M Menjivar, Marjean T Kulp, G Lynn Mitchell, Andrew J Toole, Kathleen Reuter
BACKGROUND: Convergence insufficiency (CI) is a common binocular vision disorder which often causes symptoms when doing near work. However, the best screening test for CI is unknown. The purpose of this study was to evaluate the ability of common tests of binocular and accommodative function to identify children with CI in a school screening setting. METHODS: Children aged nine to 14 were invited to participate. Positive fusional vergences, near point of convergence (NPC), accommodative amplitude, accommodative facility, Modified Thorington, and the Convergence Insufficiency Symptom Survey were evaluated...
March 13, 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
keyword
keyword
21465
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"