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https://www.readbyqxmd.com/read/29786830/blue-light-filtering-intraocular-lenses-iols-for-protecting-macular-health
#1
REVIEW
Laura E Downie, Ljoudmila Busija, Peter R Keller
BACKGROUND: An intraocular lens (IOL) is a synthetic lens that is surgically implanted within the eye following removal of the crystalline lens, during cataract surgery. While all modern IOLs attenuate the transmission of ultra-violet (UV) light, some IOLs, called blue-blocking or blue-light filtering IOLs, also reduce short-wavelength visible light transmission. The rationale for blue-light filtering IOLs derives primarily from cell culture and animal studies, which suggest that short-wavelength visible light can induce retinal photoxicity...
May 22, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29786004/anterior-segment-optical-coherence-tomography-of-intraocular-lens-opacification
#2
Saurabh Choudhry, Neha Goel, Aanchal Mehta, Nidhi Mahajan
Postoperative opacification of a hydrophilic acrylic intraocular lens (IOL) is an uncommon complication. A 57-year-old diabetic female who had undergone phacoemulsification with IOL implantation in her right eye 16 years back presented with diminution of vision in the same eye for 3 years. Significant IOL opacification was observed clinically and anterior segment optical coherence tomography clearly delineated the intraoptic deposits, sparing the haptics, and edges of the optic. IOL explant and exchange was performed leading to restoration of visual acuity to 6/9...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29786003/spontaneous-subconjunctival-abscess-in-congenital-lamellar-ichthyosis
#3
Shivanand C Bubanale, Linda Maria Genoveva De Piedade Sequeira, Bhagyajyothi B Kurbet
Congenital lamellar ichthyosis is an autosomal recessive, heterogeneous disorder presenting at birth with generalized skin involvement. The most common ophthalmic manifestation noted is bilateral ectropion of the lower eyelids. A 1-month-old female neonate, the second born of a nonconsanguineous marriage, presented with 4 days' history of redness, discharge, and swelling in the right eye. There was severe right upper eyelid ectropion, conjunctival injection, chemosis, a subconjunctival mass on the temporal bulbar conjunctiva spontaneously draining pus and corneal haze...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785511/lamellar-macular-holes-surgical-outcome-of-106-patients-with-long-term-follow-up
#4
Marco Coassin, Valentina Mastrofilippo, Jay M Stewart, Andrea Fanti, Matteo Belpoliti, Luca Cimino, Alfonso Iovieno, Luigi Fontana
PURPOSE: To determine long-term results of vitrectomy for lamellar macular holes (LMH). To evaluate how the type of lamellar macular hole (tractional vs. degenerative) and the crystalline lens status might influence visual outcomes. METHODS: We collected data from 106 patients with symptomatic lamellar macular hole that underwent pars plana vitrectomy with membranectomy and internal limiting membrane peeling. Best-corrected visual acuity (BCVA) and optical coherence tomography appearance were determined preoperatively and postoperatively...
May 21, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29785346/integrated-bioinformatic-changes-and-analysis-of-retina-with-time-in-diabetic-rats
#5
Zekai Cui, Qiaolang Zeng, Yonglong Guo, Shiwei Liu, Jiansu Chen
Diabetic retinopathy (DR) is the most common chronic complication of diabetes. It can cause impaired vision and even blindness. However, the pathological mechanism of DR is still unknown. In the present study, we use bioinformatic analysis to reveal the pathological changes of early DR in a streptozotocin (STZ) induced diabetes rat model. The dataset GSE28831 was downloaded from the Gene Expression Omnibus (GEO) database. To clarify the pathological mechanism of early DR, genes which were up-regulated (UP group) or down-regulated (DOWN group) over time were identified...
2018: PeerJ
https://www.readbyqxmd.com/read/29785302/comparisons-of-visual-and-surgical-outcomes-after-reuse-or-replacement-of-dislocated-in-the-bag-intraocular-lens
#6
Takayuki Baba, Tomohiro Nizawa, Toshiyuki Oshitari, Shuichi Yamamoto
Purpose: To compare the visual and surgical outcomes after a reuse or a replacement of a dislocated in-the-bag intraocular lens (IOL). Methods: This was a retrospective, nonrandomized case series at a single ophthalmological institution. Cases with an in-the-bag dislocation of an IOL were treated by pars plana vitrectomy and the reuse or the replacement of the IOL. The lens was held by intrascleral fixation of the haptics of the IOL under both conditions. The same dislocated IOL was reused in 6 eyes (group A) or it was replaced with another IOL in the other 9 eyes (group B)...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785145/linking-product-design-to-consumer-behavior-the-moderating-role-of-consumption-experience
#7
Naeem Gul Gilal, Jing Zhang, Faheem Gul Gilal
Background: Previous investigations of product design broadly link aesthetic, functional, and symbolic designs to sales growth, high turnover, and market share. However, the effect of product design dimensions on consumer willingness-to-buy (WTB) and word-of-mouth (WOM) is virtually ignored by consumer researchers. Similarly, whether the consumption experience can differentiate the effect of the three product design dimensions on WTB and WOM is completely unknown. Using categorization theory as a lens, our study aims to explore the effect of product design dimensions on consumer WTB and WOM directly and indirectly through the moderation of the consumption experience...
2018: Psychology Research and Behavior Management
https://www.readbyqxmd.com/read/29784696/why-are-we-failing-to-address-the-issue-of-access-to-insulin-a-national-and-global-perspective
#8
David Beran, Irl B Hirsch, John S Yudkin
Insulin was discovered in 1921 and soon became widely available in high-income countries. However, many people currently in need of this life-saving medicine are unable to access it. This is a global phenomenon, impacting not only populations of low- and middle-income countries but low-income populations in the U.S. In the U.S., the rate of diabetic ketoacidosis remains high in certain subpopulations, the cost of insulin being the main precipitating factor. On a global level the main cause of mortality for a child with type 1 diabetes is a lack of access to insulin, and in sub-Saharan Africa the life expectancy of a child with type 1 diabetes can be as low as 1 year...
June 2018: Diabetes Care
https://www.readbyqxmd.com/read/29784302/structural-characterization-of-resistant-starch-isolated-from-laird-lentils-lens-culinaris-seeds-subjected-to-different-processing-treatments
#9
Zhen Ma, Xiuxiu Yin, Xinzhong Hu, Xiaoping Li, Liu Liu, Joyce I Boye
This work focused on the structural characterization of resistant starch from untreated (UL-RS), germinated (GL-RS), fermented (FL-RS), microwaved (ML-RS), conventionally cooked (CL-RS), and autoclaved (AL-RS) lentil seeds. The size exclusion chromatography (SEC) results showed that UL-RS, RL-RS, and GL-RS (Group A samples) exhibited higher values of Mw and Rh ¯ than FL-RS, ML-RS, AL-RS (Group C samples), and CL-RS (Group B sample). In parallel with the SEC result, other structural characteristics followed similar trends, where Group C samples exhibited the lowest values of double helix content and crystallinity by 13 C NMR, and degree of order/double helix by FT-IR...
October 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29784166/opinions-on-corrective-refractive-surgery
#10
Helen Chung, Emi Sanders, Jamie Bhamra
OBJECTIVE: To investigate public perception that ophthalmologists are hesitant to undergo refractive surgery by determining the personal opinions of ophthalmologists on different surgical options. DESIGN: Prospective cross-sectional survey. PARTICIPANTS: Members of the American Society of Cataract and Refractive Surgery electronic mailing list. METHODS: An online survey administered from July to August 2014. RESULTS: There were 396 (5...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29784159/changes-in-corneal-biomechanical-properties-after-24-hours-of-continuous-intraocular-pressure-monitoring-using-a-contact-lens-sensor
#11
Laura Morales-Fernandez, Javier Garcia-Bella, Jose M Martinez-de-la-Casa, Rubén Sanchez-Jean, Federico Saenz-Frances, Pedro Arriola-Villalobos, Lucia Perucho, Enrique Santos-Bueso, Julian Garcia-Feijoo
OBJECTIVE: This study was designed to assess changes in corneal topography and biomechanics after intraocular pressure (IOP) monitoring using the Triggerfish contact lens sensor (CLS). METHODS: For this prospective study, 30 eyes of 30 subjects: 14 healthy subjects (G1) and 6 glaucoma patients (G2), were recruited for 24 hours of continuous IOP monitoring using the CLS. The following measurements were taken before CLS fitting and after lens removal: maximum keratometry (Kmax), mean keratometry (MK), and corneal astigmatism (Cyl) measured through Pentacam corneal topography, and the corneal biomechanical variables corneal hysteresis (CH) and corneal resistance factor (CRF) measured with the Ocular Response Analyzer (ORA)...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29784093/pigmentary-reaction-around-gore-tex-suture-in-a-scleral-fixated-intraocular-lens
#12
Xuejing Chen, Priya Sharma, Caroline R Baumal
No abstract text is available yet for this article.
June 2018: Ophthalmology
https://www.readbyqxmd.com/read/29783704/the-application-of-globular-water-atomized-iron-powders-for-additive-manufacturing-by-a-lens-technique
#13
Tomasz Durejko, Justyna Aniszewska, Michał Ziętala, Anna Antolak-Dudka, Tomasz Czujko, Robert A Varin, Vlad Paserin
The water-atomized ATOMET 28, 1001, 4701, and 4801 powders, manufactured by Rio Tinto Metal Powders, were used for additive manufacturing by a laser engineered net shaping (LENS) technique. Their overall morphology was globular and rounded with a size distribution from about 20 to 200 µm. Only the ATOMET 28 powder was characterized by a strong inhomogeneity of particle size and irregular polyhedral shape of powder particles with sharp edges. The powders were pre-sieved to a size distribution from 40 to 150 µm before LENS processing...
May 18, 2018: Materials
https://www.readbyqxmd.com/read/29783195/performance-of-a-biotrickling-filter-for-the-anaerobic-utilization-of-gas-phase-methanol-coupled-to-thiosulphate-reduction-and-resource-recovery-through-volatile-fatty-acids-production
#14
Tejaswini Eregowda, Luck Matanhike, Eldon R Rene, Piet N L Lens
The anaerobic removal of continuously fed gas-phase methanol (2.5-30 g/m3 .h) and the reduction of step-fed thiosulphate (1000 mg/L) was investigated in a biotrickling filter (BTF) operated for 123 d at an empty bed residence time (EBRT) of 4.6 and 2.3 min. The BTF performance during steady step-feed and special operational phases like intermittent liquid trickling in 6 and 24 h cycles and operation without pH regulation were evaluated. Performance of the BTF was not affected and nearly 100% removal of gas-phase methanol was achieved with an ECmax of 21 g/m3 ...
April 25, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29783108/a-new-perspective-to-aberrations-caused-by-barium-and-vanadium-ions-on-lens-culinaris-medik
#15
Murat Çanlı
This study investigates aberrations caused by barium and vanadium on meristematic cells of Lens culinaris Medik. Barium and vanadium ions at various concentrations (0.05 M, 0.1 M, 0.25 M, 0.5 M, and 1.0 M) were exposed to the seeds of the plant at fixed time interval (12 h). After seedlings, with a microscopic examination images were captured about the root tips. Those images showed that several abnormalities occurred on the plant such as chromosome breakings, chromosome dispersion, bridge chromosome, chromosome adherence, ring chromosome...
May 18, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29782944/a-comprehensive-review-on-contact-lens-for-ophthalmic-drug-delivery
#16
REVIEW
Jiawen Xu, Yingyan Xue, Gaoyong Hu, Tianyu Lin, Jingxin Gou, Tian Yin, Haibing He, Yu Zhang, Xing Tang
With the prevalence of electronic devices and an aging population, the number of people affected with eye disease is increasing year by year. In spite of a large number of eye drops on the market, most of them do not perform sufficiently, due to rapid clearance mechanisms and ocular barriers. To enhance drug delivery to the eye, a number of novel formulations for ocular diseases have been investigated over recent decades, aiming to increase drug retention and permeation while also allowing for sustained drug release over prolonged periods...
May 18, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29782877/analysis-of-spontaneous-resolution-of-cytomegalovirus-replication-after-transplantation-in-cmv-seropositive-patients-with-pretransplant-cd8-ifng-response
#17
Aurora Páez-Vega, Antonio Poyato, Alberto Rodriguez-Benot, Lluis Guirado, Jesús Fortún, Oscar Len, Edson Abdala, María C Fariñas, Elisa Cordero, Carmen de Gracia, Domingo Hernández, Rafael González, Julián Torre-Cisneros, Sara Cantisán
This prospective study evaluates whether CMV-seropositive (R+) transplant patients with pretransplant CD8+IFNG+ T-cell response to cytomegalovirus (CMV) (CD8+IFNG+ response) can spontaneously clear the CMV viral load without requiring treatment. A total of 104 transplant patients (kidney/liver) with pretransplant CD8+IFNG+ response were evaluable. This response was determined using QuantiFERON-CMV assay. The incidence of CMV replication and disease was 45.2% (47/104) and 6.7% (7/104), respectively. Of the total patients, 77...
May 18, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29782825/characterization-of-an-n-terminal-mutant-of-%C3%AE-a-crystallin-%C3%AE-a-r21q-associated-with-congenital-cataract
#18
Ashutosh S Phadte, Puttur Santhoshkumar, K Krishna Sharma
Several mutations associated with congenital cataracts in human beings target conserved arginine residues in αA-crystallin. The N-terminal region of αA-crystallin is a "mutational hotspot," with multiple cataract-related mutations reported in this region. Two mutations at arginine 21 in the N-terminal domain of αA-crystallin - αA-R21L and αA-R21W have been associated with congenital cataract. A third mutant of R21, αA-R21Q, was recently identified to be associated with congenital cataract in a South Australian family...
May 18, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29782029/a-technique-for-a-nano-textured-gapless-microlens-array-using-self-formation-characteristics-of-anodic-alumina
#19
Yong Min Park, Woong Ki Jang, Tae Hwan Shin, Byeong Hee Kim, Young Ho Seo
This paper presents a method to utilize the growth properties of anodic alumina possessing self-formation characteristics to fabricate a nano-textured microstructure and also introduces an application technique of the proposed method. The growth rate of anodic alumina, fabricated on aluminum surfaces, has a strong dependence on the intensity of the applied current density or electric field. The uniformity of the thickness of anodic alumina is determined by its electrical distribution characteristics. Accordingly, microscale structures can be fabricated using the growth rate deviation of anodic alumina...
May 21, 2018: Nanoscale
https://www.readbyqxmd.com/read/29781969/an-ecological-approach-toward-prevention-and-care-of-victims-of-domestic-minor-sex-trafficking
#20
Rosario V Sanchez, Dula F Pacquiao
Sex trafficking is a widespread form of human trafficking that exists globally. The forced sexual exploitation of young women for profit at the hands of traffickers is a human rights violation. Sex trafficking is a form of modern-day slavery where youths are sold as a commodity. It is difficult to determine the wide range of negative health outcomes associated with domestic minor sex trafficking due to the hidden nature of the crime and its lack of statistical data to determine prevalence. Viewing domestic minor sex trafficking through an ecological lens assists in the understanding of the multiple complex interactions between victims, their relationships, and environments that influence their health...
April 2018: Journal of Forensic Nursing
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