keyword
MENU ▼
Read by QxMD icon Read
search

Macula

keyword
https://www.readbyqxmd.com/read/28430324/negative-staining-of-the-vitreous-with-the-use-of-vital-dyes
#1
Cesare Mariotti, Michele Nicolai, Simone Donati, Michele Reibaldi
PURPOSE: The vitreous cortex, epiretinal membrane (ERM), and inner limiting membrane (ILM) are transparent tissues and are thus difficult to visualize. Staining these structures can increase the efficiency of a nontraumatic removal. METHODS: The surgeon performs a partial core vitrectomy and induces a posterior vitreous detachment. The vital dye is then injected into the retrohyaloid space in balanced salt solution (BSS). The dyes used are TWIN (Alchimia srl, Padova, Italy), MembraneBlue-Dual (DORC International, Zuidland, the Netherlands), and Doubledyne (Alfa Intes, Casoria, Italy)...
April 13, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28428893/characteristics-and-racial-variations-of-polypoidal-choroidal-vasculopathy-in-tertiary-centers-in-the-united-states-and-united-kingdom
#2
Tarek Alasil, Nelida Munoz, Pearse A Keane, Adnan Tufail, Patrick A Coady, Eduardo Novais, Talisa E de Carlo, Caroline R Baumal, Nadia K Waheed, Jay S Duker, Ron A Adelman
PURPOSE: To evaluate the characteristics and racial variations amongst patients with polypoidal choroidal vasculopathy (PCV) in the United States and the United Kingdom. METHODS: Fundus photos and indocyanine green angiography images were evaluated in a multicenter retrospective study to establish the diagnosis of PCV. Visual acuity (VA) was recorded in ETDRS letter count. RESULTS: Eighty eyes of 71 PCV patients (average age of 69.4 ± 10...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28427062/emerging-issues-for-optical-coherence-tomography
#3
Luisa Pierro, Alessandro Rabiolo
Almost 25 years after its introduction, optical coherence tomography (OCT) is still a crucial test in the evaluation of patients affected by diabetic retinopathy. In this chapter, the authors provide an extensive overview of the posterior segment pathological changes induced by diabetes, characterized using OCT. OCT plays a key role in diabetic macular edema (DME) as it assesses related retinal changes both in a qualitative (i.e., DME pattern, presence and aspects of cysts, fluid localization, integrity, and reflectivity of retinal layers) and quantitative (i...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28424788/fully-automated-robust-system-to-detect-retinal-edema-central-serous-chorioretinopathy-and-age-related-macular-degeneration-from-optical-coherence-tomography-images
#4
Samina Khalid, M Usman Akram, Taimur Hassan, Ammara Nasim, Amina Jameel
Maculopathy is the excessive damage to macula that leads to blindness. It mostly occurs due to retinal edema (RE), central serous chorioretinopathy (CSCR), or age related macular degeneration (ARMD). Optical coherence tomography (OCT) imaging is the latest eye testing technique that can detect these syndromes in early stages. Many researchers have used OCT images to detect retinal abnormalities. However, to the best of our knowledge, no research that presents a fully automated system to detect all of these macular syndromes is reported...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28424655/sustained-and-transient-vestibular-systems-a-physiological-basis-for-interpreting-vestibular-function
#5
REVIEW
Ian S Curthoys, Hamish G MacDougall, Pierre-Paul Vidal, Catherine de Waele
Otolithic afferents with regular resting discharge respond to gravity or low-frequency linear accelerations, and we term these the static or sustained otolithic system. However, in the otolithic sense organs, there is anatomical differentiation across the maculae and corresponding physiological differentiation. A specialized band of receptors called the striola consists of mainly type I receptors whose hair bundles are weakly tethered to the overlying otolithic membrane. The afferent neurons, which form calyx synapses on type I striolar receptors, have irregular resting discharge and have low thresholds to high frequency (e...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28424211/connecting-tubule-glomerular-feedback-mediates-tubuloglomerular-feedback-resetting-post-unilateral-nephrectomy
#6
Sumit R Monu, Yilin Ren, J X Masjoan Juncos, Kristopher Kutskill, Hong Wang, Nitin Kumar, Edward L Peterson, Oscar A Carretero
Unilaterally nephrectomized rats (UNx) have higher glomerular capillary pressure (PGC) that can cause significant glomerular injury in the remnant kidney. PGC is controlled by the ratio of afferent (Af-Art) and efferent arteriole resistance. Af-Art resistance in turn is regulated by two intrinsic feedback mechanisms: 1) Tubuloglomerular feedback (TGF) that causes Af-Art constriction in response to increased NaCl in the macula densa and 2) connecting tubule glomerular feedback (CTGF) that causes Af-Art dilatation in response to an increase in NaCl transport in the connecting tubule via the epithelial sodium channel (ENaC)...
April 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28420620/identification-of-lrp5-mutations-in-families-with-familial-exudative-vitreoretinopathy
#7
Liu Yuqing, Zhu Xiong, Li Shujin, Yang Yeming, Yang Mu, Zhao Peiquan, Zhu Xianjun
Familial exudative vitreoretinopathy (FEVR) is a hereditary eye disease characterized by defects in the development of periphery retinal vessels. However, the clinical phenotypes of FEVR vary widely from asymptomatic to complete blindness. We analyzed patients from three Chinese families and one sporadic patient with FEVR to investigate the clinical features and disease-causing mutations. Ocular phenotypes included increased ramification of the peripheral retinal vessels, a peripheral avascular zone, inferotemporal dragging of the optic disc and macula, and retinal folds...
March 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28413410/eccentric-macular-hole-after-pars-plana-vitrectomy-for-idiopathic-macular-hole-a-case-report
#8
Irini Chatziralli, George Theodossiadis, Maria Douvali, Alexandros A Rouvas, Panagiotis Theodossiadis
INTRODUCTION: Postoperative eccentric macular hole (MH) formation is an uncommon complication after pars plana vitrectomy (PPV) with internal limiting membrane (ILM) peeling for epiretinal membrane or MH treatment. Herein, we present a case of eccentric MH formation after PPV with ILM peeling for MH. CASE DESCRIPTION: A 72-year-old female patient underwent 23-gauge PPV with ILM peeling for idiopathic MH in her right eye. The visual acuity was 6/24 in the right eye...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28413409/self-optical-coherence-tomography-and-angiography
#9
Ahmad M Mansour
PURPOSE: To present a new concept of self-optical coherence tomography (OCT) and self-OCT angiography. METHODS: The operator sits in the patient seat and manipulates the instrument body via the joystick with the dominant hand, while the dominant index is ready to press the capture button and while focusing on the fixation target. One senior ophthalmologist judged various OCT machines for ease of self-scan during a major ophthalmic convention. Separately, self-scans were also captured using a single OCT machine by one senior ophthalmologist and 5 junior optometrists and the scans were analyzed for both centration and image quality value (IQV), and compared to regular scans done by an operator...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28412069/whole-exome-sequencing-identifies-biallelic-idh3a-variants-as-a-cause-of-retinitis-pigmentosa-accompanied-by-pseudocoloboma
#10
Laurence H M Pierrache, Adva Kimchi, Rinki Ratnapriya, Lisa Roberts, Galuh D N Astuti, Alexey Obolensky, Avigail Beryozkin, Martha J H Tjon-Fo-Sang, Jose Schuil, Caroline C W Klaver, Ernie M H F Bongers, Lonneke Haer-Wigman, Nicoline Schalij, Martijn H Breuning, Gratia M Fischer, Eyal Banin, Raj S Ramesar, Anand Swaroop, L Ingeborgh van den Born, Dror Sharon, Frans P M Cremers
PURPOSE: To identify the genetic cause of and describe the phenotype in 4 families with autosomal recessive retinitis pigmentosa (arRP) that can be associated with pseudocoloboma. DESIGN: Case series. PARTICIPANTS: Seven patients from 4 unrelated families with arRP, among whom 3 patients had bilateral early-onset macular pseudocoloboma. METHODS: We performed homozygosity mapping and whole-exome sequencing in 5 probands and 2 unaffected family members from 4 unrelated families...
April 12, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28407837/-effects-of-embryonic-lead-exposure-on-food-intake-and-bowel-movement-in-offspring-rats-and-possible-mechanisms
#11
Jian-Ping Zhou, Fan Wang, Xiao-Qing Yi, Xue-Ying Wang, Yong-Sheng Jiang, Yan Geng, Jing-Jing Wang
OBJECTIVE: To study the effects of embryonic lead exposure on food intake and bowel movement in offspring rats and possible mechanisms. METHODS: Sprague-Dawley rats were given 0.1% (low-dose lead exposure group) or 0.2% (high-dose lead exposure group) lead acetate freely during pregnancy to establish an animal model of embryonic lead exposure. A blank control group was also established. The male offspring rats were enrolled in the study, and 10 male offspring rats from each group were selected to observe the changes in food intake, bowel movement, gastric emptying, intestine propulsion, and pathological inflammatory response in the gastric mucosa...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28405749/the-anterior-commissure-of-the-human-larynx-revisited
#12
Jean Michel Prades, M Peoc'h, C Petcu, A Karkas, J M Dumollard, M Gavid
BACKGROUND: The anterior commissure (AC) of the human larynx is usually understood as an area of the glottis anteriorly situated between the two vocal folds inserting to the thyroid cartilage (TC). The pattern of spread of AC carcinoma could hypothesize that AC could include other structures of the ventral larynx as developmental anatomy could demonstrate. METHODS: Ten adult larynx specimens from donation program cadavers and 15 selected fetal specimens (from 11 to 34 weeks of amenorrhoea) were studied using microdissection and histological serial sections stained with hematoxylin-eosin and reticuline...
April 12, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28405744/long-term-follow-up-of-fellow-eye-in-patients-with-lamellar-macular-hole
#13
Ugo Nava, Matteo Giuseppe Cereda, Ferdinando Bottoni, Chiara Preziosa, Marco Pellegrini, Andrea Giani, Giovanni Staurenghi
BACKGROUND: To evaluate macular changes in fellow eyes of patients diagnosed with lamellar macular hole (LMH) using spectral-domain optical coherence tomography (SD-OCT) and blue fundus autofluorescence (B-FAF). METHODS: Fellow eyes of patients diagnosed with a LMH were retrospectively evaluated on OCT. Best-corrected visual acuity (BCVA) and central foveal thickness (CFT) were recorded. Corresponding B-FAF images, vitreo-macular relations, and type of epiretinal membranes (ERMs) were also examined...
April 13, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28405489/three-dimensional-optical-coherence-tomography-imaging-and-treatment-of-glaucomatous-optic-nerve-head-defects-associated-with-schisis-like-maculopathy
#14
Zafer Öztaş, Jale Menteş, Halil Ateş, Serhad Nalçacı
We present the three-dimensional (3D) spectral-domain optical coherence tomography (SD-OCT) findings of schisis-like maculopathy associated with structural changes of the optic nerve (ON) head as well as the treatment outcomes of a case of advanced glaucoma. In addition to ophthalmological examination, B-scan and 3D-SD-OCT images of the ON head, peripapillary retina, and the macula were obtained. The B-scan images only detected typical retinoschisis findings. However, the 3D-SD-OCT images of the ON head revealed defects of various sizes, shapes, and depths at the outer wall of the prelaminar and laminar regions of the ON canal...
April 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28403107/reference-interval-for-the-disc-macula-distance-to-disc-diameter-ratio-in-a-large-population-of-healthy-japanese-adults-a-prospective-observational-study
#15
Ken-Ichi Sato
This study presents the calculated reference interval for the disc-to-macula distance to disc diameter ratio (DM:DD) based on a large population of healthy Japanese adults.A total of 308 consecutive, healthy Japanese adults were examined in this prospective observational study. Eighteen subjects were also excluded because of poor quality of the fundus photograph of one or both eyes; 290 (161 men and 129 women) were included in this study. For each subject, a color fundus photograph of one eye, either the right or left, was randomly selected and used for analysis...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28400888/macular-evaluation-w%C3%A4-th-spectral-domain-type-optic-coherence-tomography-in-eyes-with-acute-nonarteritic-ischemic-optic-neuropathy-at-the-presentation-visit
#16
Oya Donmez, Gamze Kocaoglu, Aylin Yaman, Meltem Soylev Bajin, Ali Osman Saatci
PURPOSE: To evaluate the macula with spectral domain type optic coherence tomography (OCT) in eyes with acute nonarteritic anterior ischemic optic neuropathy (NAION) at the presentation visit. METHODS: Medical charts of the 133 patients who received the diagnosis of acute NAION between January 2008 and July 2014 at the Neuro-ophthalmology unit of Dokuz Eylul University were reviewed retrospectively. Sixtythree patients within 30 days of symptom onset with available baseline spectral domain type macular OCT were included in this study...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28399268/vitreomacular-adhesion-and-its-association-with-age-related-macular-degeneration-in-a-population-based-setting-the-alienor-study
#17
Sarra Gattoussi, Audrey Cougnard-Grégoire, Marie-Noëlle Delyfer, Marie-Bénédicte Rougier, Cédric Schweitzer, Cécile Delcourt, Jean-François Korobelnik
Purpose: The purpose of this study was to describe vitreomacular adhesion (VMA), diagnosed with spectral-domain optical coherence tomography (SD-OCT), its risk factors, and its association with AMD in a population-based study of French elderly subjects. Methods: Six hundred twenty-two of 624 (99.7%) participants of the Alienor study (Bordeaux, France), ≥75 years of age, had gradable SD-OCT scans of the macula in at least one eye. VMA was defined as visible perifoveal vitreous separation with remaining vitreomacular attachment and unperturbed foveal morphologic features...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28396954/the-association-between-retinal-nerve-fibre-layer-thickness-and-corpus-callosum-index-in-different-clinical-subtypes-of-multiple-sclerosis
#18
Vedat Cilingir, Muhammed Batur, Mehmet Deniz Bulut, Aysel Milanlioglu, Abdullah Yılgor, Abdussamet Batur, Tekin Yasar, Temel Tombul
The objective of this paper is to evaluate the association between physical disability in multiple sclerosis (MS) patients, the thickness of the retinal nerve fibre layer (RNFL) and corpus callosum volumes, as expressed by the corpus callosum index (CCI). This study was based on a cohort of 212 MS patients and 52 healthy control subjects, who were age and gender matched. The MS patients included 144 women and 177 relapsing-remitting MS (RRMS) patients. Peripapillary and volumetric optical coherence tomography (OCT) scans of the macula were performed using spectral-domain OCT technology...
April 10, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28396814/the-histopathological-finding-of-the-surgically-extracted-atypical-dome-shaped-choroidal-osteoma
#19
Hirona Bessho, Hisanori Imai, Atsushi Azumi
Purpose. To report a case of atypical dome-shaped choroidal osteoma, which was diagnosed by histopathological finding of surgically extracted tumor. Case Report. A 35-year-old woman presented with visual field abnormality in the left eye (OS). Her best-corrected visual acuity with Landolt ring chart was 1.0 OS. The funduscopic examination revealed a yellowish dome-shaped choroidal tumor located in the temporal side of the macula with exudative retinal detachment. 25-gauge pars plana vitrectomy and the extraction of the tumor were performed for the definitive diagnosis...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/28394835/metamorphopsia-and-outer-retinal-morphologic-changes-after-successful-vitrectomy-surgery-for-macula-off-rhegmatogenous-retinal-detachment
#20
Tetsuhiko Okuda, Tomomi Higashide, Kazuhisa Sugiyama
PURPOSE: To evaluate the correlation between metamorphopsia and outer retinal morphologic changes after successful vitrectomy for rhegmatogenous retinal detachment (RRD). METHODS: Forty eyes from 40 patients with macula-off (26 eyes) or macula-on (14 eyes) RRDs that underwent pars plana vitrectomy were included. Metamorphopsia was quantified with M-CHARTS. The relationship between the integrity of the outer retinal layers examined by spectral domain optical coherence tomography and metamorphopsia at 6 and 12 months postoperatively was evaluated...
January 23, 2017: Retina
keyword
keyword
13201
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"