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https://www.readbyqxmd.com/read/28333895/visual-field-defects-in-young-patients-with-open-angle-glaucoma-comparison-between-high-tension-and-normal-tension-glaucoma
#1
Ji-Hye Park, Chungkwon Yoo, Jinhwan Park, Yong Yeon Kim
PURPOSE: To investigate the clinical features of young Korean patients with open-angle glaucoma (OAG), and to compare visual field (VF) defects between patients with normal-tension glaucoma (NTG) and those with high-tension glaucoma (HTG). MATERIALS AND METHODS: Patients with OAG younger than 40 years of age were divided into NTG and HTG groups based on untreated intraocular pressure (IOP) level. The patients were matched according to the mean deviation of standard automated perimetry...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28328725/region-specific-changes-in-postlens-fluid-reservoir-depth-beneath-small-diameter-scleral-lenses-over-2-hours
#2
Cherie B Nau, Muriel M Schornack
OBJECTIVES: Scleral lenses settle on the eye with time, and the depth of the postlens fluid reservoir decreases. We measured changes in central, superior, inferior, temporal, and nasal clearance beneath a small-diameter scleral lens after 2 hr of lens wear in healthy eyes. METHODS: Thirty-one participants (age, mean±SD, 29±7 years) with no history of eye disease or scleral lens wear were fitted with a 15-mm scleral lens in 1 eye. Scheimpflug images were acquired by a camera system within 5 min of lens placement and again after 2 hr of continuous lens wear...
March 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28298936/moxibustion-in-early-chinese-medicine-and-its-relation-to-the-origin-of-meridians-a-study-on-the-unearthed-literatures
#3
REVIEW
Chang Huang, Jiankang Liang, Li Han, Juntian Liu, Mengyun Yu, Baixiao Zhao
Moxibustion is an integral part of Traditional Chinese Medicine (TCM). It achieved higher level of recognition and had more general application in ancient times than in contemporary life. As the vital historical sources, the records of unearthed literatures offered precious insights to Chinese social life pattern and medical practice in Qin and Han dynasties (221 BC-220 AD). There was no surprise that the bamboo and silk documents excavated from Mawangdui () tomb, Hantanpo () tomb, and other relics had a large amount of texts relevant to moxibustion...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28280544/the-influence-of-sea-ice-wind-speed-and-marine-mammals-on-southern-ocean-ambient-sound
#4
Sebastian Menze, Daniel P Zitterbart, Ilse van Opzeeland, Olaf Boebel
This paper describes the natural variability of ambient sound in the Southern Ocean, an acoustically pristine marine mammal habitat. Over a 3-year period, two autonomous recorders were moored along the Greenwich meridian to collect underwater passive acoustic data. Ambient sound levels were strongly affected by the annual variation of the sea-ice cover, which decouples local wind speed and sound levels during austral winter. With increasing sea-ice concentration, area and thickness, sound levels decreased while the contribution of distant sources increased...
January 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28280478/an-examination-of-personality-traits-associated-with-autonomous-sensory-meridian-response-asmr
#5
Beverley Fredborg, Jim Clark, Stephen D Smith
Autonomous Sensory Meridian Response (ASMR) is a perceptual condition in which the presentation of particular audio-visual stimuli triggers intense, pleasurable tingling sensations in the head and neck regions, which may spread to the periphery of the body. These triggering stimuli are often socially intimate in nature, and usually involve repetition of movements and/or sounds (e.g., hearing whispering, watching someone brush her hair). Reports of ASMR experiences first appeared in online communities in 2010; since this time, these communities have expanded, with some groups consisting of over 100,000 members...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28264128/small-incision-lenticule-extraction-smile-for-hyperopia-optical-zone-centration
#6
Dan Z Reinstein, Kishore R Pradhan, Glenn I Carp, Timothy J Archer, Marine Gobbe, Walter Sekundo, Raynan Khan, Kim Citron, Purushottam Dhungana
PURPOSE: To evaluate optical zone centration of hyperopic small incision lenticule extraction (SMILE). METHODS: This prospective study of 60 consecutive hyperopic SMILE procedures used the VisuMax femtosecond laser and matched LASIK procedures with the VisuMax and MEL 80 excimer lasers (Carl Zeiss Meditec AG, Jena, Germany). Inclusion criteria were maximum attempted hyperopic meridian of between +1.00 and +7.00 diopters (D) and astigmatism up to 6.00 D. For SMILE, the optical zone was between 6...
March 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28257115/pharmacological-activities-and-synthesis-of-esculetin-and-its-derivatives-a-mini-review
#7
REVIEW
Chengyuan Liang, Weihui Ju, Shaomeng Pei, Yonghong Tang, Yadong Xiao
Esculetin, synonymous with 6,7-dihydroxycoumarin, is the main active ingredient of the traditional Chinese medicine Cortex Fraxini. The twig skin or trunk bark of Cortex Fraxini are used by herb doctors as a mild, bitter liver and gallbladder meridians' nontoxic drug as well as dietary supplement. Recently, with a variety of novel esculetin derivatives being reported, the molecular mechanism research as well as clinical application of Cortex Fraxini and esculetin are becoming more attractive. This mini-review will consolidate what is known about the biological activities, the mechanism of esculetin and its synthetic derivatives over the past decade in addition to providing a brief synopsis of the properties of esculetin...
March 2, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28254104/effect-of-laser-acupuncture-on-heart-rate-variability-of-nonpatients-and-patients-with-spinal-cord-injury
#8
Yiu Ming Wong
Sensory loss in a complete spinal cord injury (SCI) can be described as an injury that removes the ability of the brain to receive electrical afferent signals generated below the site of the injury. The sensory nervous system appears to be the same as the meridians in the concept of Oriental medicine, thus, we assumed that a complete SCI would lead to discontinuation of the meridians in humans. In this case series report with a cross-sectional view, we observed quantitative changes in heart rate variability induced by laser acupuncture at bilateral GB34 and ST36 points for 15 minutes in eight patients with complete SCIs between the levels of T8 and T12, and eight healthy individuals as a control group...
January 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28254103/is-there-volume-transmission-along-extracellular-fluid-pathways-corresponding-to-the-acupuncture-meridians
#9
Weibo Zhang, Ze Wang, Shuyong Jia, Yuying Tian, Guangjun Wang, Hongyan Li, Kjell Fuxe
Volume transmission is a new major communication signaling via extracellular fluid (interstitial fluid) pathways. It was proposed by the current authors that such pathways can explain the meridian phenomena and acupuncture effects. To investigate whether meridian-like structures exist in fish body and operate via volume transmission in extracellular fluid pathways, we injected alcian blue (AB) under anesthesia into Gephyrocharax melanocheir, which has a translucent body. The migration of AB could be seen directly and was recorded by a digital camera...
January 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28249710/non-extensive-distribution-of-human-eye-photoreceptors
#10
Ali Mehri
Spatial distribution of cone and rod photoreceptors in human eye retina, are studied by using non-extensive statistics. We show that photoreceptors' packing density obeys q-exponential and q-Gaussian distributions. Cones retinal distribution has higher non-extensivity in young subjects in comparison with old ones. Absolute value of q-parameter for spatial distribution of both types of photocells gets higher values along horizontal meridian. We also calculate Shannon's additive entropy and Tsallis' non-additive entropy for cone photocells distribution in retina, and compare their results...
February 27, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28241466/lightdrum-portable-light-stage-for-accurate-btf-measurement-on-site
#11
Vlastimil Havran, Jan Hošek, Šárka Němcová, Jiří Čáp, Jiří Bittner
We propose a miniaturised light stage for measuring the bidirectional reflectance distribution function (BRDF) and the bidirectional texture function (BTF) of surfaces on site in real world application scenarios. The main principle of our lightweight BTF acquisition gantry is a compact hemispherical skeleton with cameras along the meridian and with light emitting diode (LED) modules shining light onto a sample surface. The proposed device is portable and achieves a high speed of measurement while maintaining high degree of accuracy...
February 23, 2017: Sensors
https://www.readbyqxmd.com/read/28238368/change-in-diagnostic-confidence-brought-about-by-using-in-utero-mri-for-fetal-structural-brain-pathology-analysis-of-the-meridian-cohort
#12
P D Griffiths, M Bradburn, M J Campbell, D J A Connolly, C L Cooper, D Jarvis, M D Kilby, G Mason, C Mooney, S C Robson, A Wailoo
AIM: To measure possible change in diagnostic confidence by performing in utero magnetic resonance imaging (iuMRI) studies on fetuses with brain abnormalities recognised on ultrasonography (US). MATERIALS AND METHODS: The analyses are based on the primary cohort from the prospective MERIDIAN study, which consisted of 570 fetuses with brain abnormalities detected on US, with iuMRI performed within 2 weeks of US and complete outcome reference data. The cohort was recruited between July 2011 and August 2014, and written informed consent was obtained for all participants...
February 23, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28225372/spherical-soft-contact-lens-designs-and-peripheral-defocus-in-myopic-eyes
#13
Kelly E Moore, Julia S Benoit, David A Berntsen
PURPOSE: Peripheral retinal defocus has been implicated in myopia progression. The effect of commercially available spherical soft contact lenses (SCLs) on peripheral defocus of adult myopic eyes was investigated. METHODS: Twenty-five young adults with spherical equivalent (SE) refractions between -0.50D and -6.00D were enrolled. Cycloplegic autorefraction (right eye) was measured centrally and ±20°, ±30°, and ±40° from the line of sight along the horizontal meridian using an autorefractor...
March 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28223775/a-comparison-of-three-different-corneal-marking-methods-used-to-determine-cyclotorsion-in-the-horizontal-meridian
#14
Hung-Yuan Lin, Yi-Ting Fang, Ya-Jung Chuang, Justin N Karlin, Hsin-Yang Chen, Szu-Yuan Lin, Pi-Jung Lin, Ming Chen
During toric intraocular lens (IOL) implantation, surgeons must take particular care to ensure that inaccurate preoperative measurement and intraoperative misalignment do not cause unexpected postoperative residual astigmatism. This retrospective, comparative case series study aimed to analyze the rotational deviation, or cyclotorsion, of three corneal marking methods: VERION digital marker (VDM; reference), horizontal slit beam marking (HSBM), and subjective direct visual marking (SDVM) on the table (using a bevel knife tip)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28220085/peripheral-visual-reaction-time-is-faster-in-deaf-adults-and-british-sign-language-interpreters-than-in-hearing-adults
#15
Charlotte J Codina, Olivier Pascalis, Heidi A Baseler, Alexandra T Levine, David Buckley
Following auditory deprivation, the remaining sense of vision has shown selective enhancement in visual cognition, especially in the area of near peripheral vision. Visual acuity is poor in the far periphery and may be an area where sound confers the greatest advantage in hearing persons. Experience with a visuospatial language such as British Sign Language (BSL) makes additional demands on the visual system. To test the different and separable effects of deafness and use of a visuo-spatial language on far peripheral visual processing, we investigated visual reaction times (RTs) and response accuracy to visual stimuli, between 30° and 85° along the four cardinal and four inter-cardinal meridians...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28213697/danger-of-injudicious-use-of-tui-na-therapy-in-ankylosing-spondylitis
#16
Gen Zou, Guyi Wang, Jinxiu Li, Guobao Wu, Jia Huang, Siyang Huang
Tui-na is a very important component of Chinese medicine. It is a well-respected treatment modality known to be helpful and safe for a wide range of conditions. It can be considered as a certain kind of massage which is performed at acupoints, meridians, and collaterals by pushing, finger twisting, grasping thumb waving pressing, patting, palm twisting, and other manipulation techniques. At present, it is extensively used for relieving pain and stiffness associated with ankylosing spondylitis in China, even though there is a lack of evidence to support its validation and feasibility...
February 17, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28211176/peripheral-aberrations-in-adult-hyperopes-emmetropes-and-myopes
#17
Uchechukwu L Osuagwu, Marwan Suheimat, David A Atchison
PURPOSE: To determine differences in peripheral aberrations in hyperopic, emmetropic and myopic groups. METHODS: Cycloplegic peripheral aberrations for 5 mm pupils were measured at 39 locations across 42° × 32° of right eye visual fields with a COAS-HD Hartmann-Shack aberrometer in nine hyperopes (mean age 29 ± 5 years, spherical equivalent refraction M + 1.47 ± 0.58 D), 20 emmetropes (28 ± 7 years, +0.06 ± 0.36 D) and 20 myopes (27 ± 6 years, -2...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28185842/corneal-astigmatism-measurement-by-ray-tracing-versus-anterior-surface-based-keratometry-in-candidates-for-toric-iol-implantation
#18
Ugo de Sanctis, Piero Donna, Rachele R Penna, Maria Isabella Calastri, Chiara M Eandi
PURPOSE: To compare corneal astigmatism derived from total corneal refractive power (CATCRP), a ray-tracing method, with that derived from simulated keratometry (CASimK), an anterior surface-based method, in candidates for toric intraocular lens (IOL) implantation. DESIGN: Reliability analysis. METHODS: In one eye of 200 consecutive patients (mean age 71 ±9 years) with cataract, a Pentacam HR (Oculus, Wetzlar, Germany) was used to measure CATCRP and CASimK...
February 6, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28178925/torsional-and-flattening-effect-on-corneal-astigmatism-after-cataract-surgery-a-retrospective-analysis
#19
Yuli Park, Hyun Seung Kim
BACKGROUND: To evaluate the torsional and flattening effect of steep meridian incisions and influence of posterior corneal astigmatism (PCA) on total corneal astigmatism (TCA) after cataract surgery. METHODS: One hundred thirty-two eyes underwent cataract surgery with steep meridian 2.2 mm microcoaxial and 2.85 mm conventional clear corneal incisions. Eyes were divided into with-the-rule (WTR) astigmatism and against-the-rule (ATR) astigmatism groups depending on the steeper meridian and measured with autokeratorefractor and Pentacam® before surgery, at 1 day, 1 week, 1 and 2 months postoperatively...
February 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28169283/ultra-high-resolution-profiles-of-macular-intra-retinal-layer-thicknesses-and-associations-with-visual-field-defects-in-primary-open-angle-glaucoma
#20
Qi Chen, Shenghai Huang, Qingkai Ma, Huiling Lin, Mengmeng Pan, Xinting Liu, Fan Lu, Meixiao Shen
The structural characteristics of the outer retinal layers in primary open angle glaucoma (POAG) are still controversial, and these changes, along with those in the inner retinal layers, could have clinical and/or pathophysiological significance. A custom-built ultra-high resolution optical coherence tomography (UHR-OCT) combined with an automated segmentation algorithm can image and measure the eight intra-retinal layers. The purpose of this study is to determine the thickness characteristics of the macular intra-retinal layers, especially the outer layers, in POAG patients...
February 7, 2017: Scientific Reports
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