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March 17, 2018: Lancet
Friederike Schaub, Werner Adler, Philip Enders, Meike C Koenig, Konrad R Koch, Claus Cursiefen, Bernd Kirchhof, Ludwig M Heindl
PURPOSE: The purpose of the present study was to evaluate whether preexisting epiretinal membrane (ERM) is a significant risk factor for developing pseudophakic cystoid macular edema (PCME). METHODS: Two hundred four consecutive eyes and 153 consecutive eyes without preexisting epiretinal membranes were retrospectively compared regarding PCME development following phacoemulsification with posterior chamber lens implantation. Patients with vascular retinal diseases, uveitis, trauma, neovascular macular degeneration, chronic inflammatory conditions, diabetic retinopathy, endophthalmitis, eventful cataract surgery, and combination of cataract surgery and vitrectomy during the observation period were excluded...
March 21, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
Mohammadali Hassani, Ebrahim Jafarzadehpur, Ali Mirzajani, AbbasAli Yekta, Mehdi Khabazkhoob
Purpose: To compare the visual acuity outcome of the ClearKone SynergEyes™ hybrid contact lens and Boston XO rigid gas permeable (RGP) contact lens in patients with keratoconus. Methods: Twenty-eight eyes with keratoconus participated in this study. The visual acuity was examined once with the RGP lens and once with the ClearKone SynergEyes™ hybrid contact lens. Results: The mean corneal keratometry, the mean lens back optic zone radius, and the mean vault was 7...
March 2018: Journal of Current Ophthalmology
Mohammad Ghoreyshi, Ahmadreza Khalilian, Mohammadreza Peyman, Mohaddeseh Mohammadinia, Alireza Peyman
Purpose: To compare the performance of OKULIX ray-tracing software with SRK-T and Hoffer Q formula in intraocular lens (IOL) power calculation in patients presenting with cataract. Methods: In this prospective study, 104 eyes of 104 patients with cataract who underwent phacoemulsification and IOL implantation were recruited. Three IOL brands were used and for all eyes, IOL power calculation was performed using SRK-T, Hoffer Q formula and also OKULIX ray-tracing software...
March 2018: Journal of Current Ophthalmology
Jiaojie Chen, Wei Huang, Rong Zhu, Jun Jiang, Yiyu Li
Background: This retrospective study was designed to investigate the sole influence of orthokeratology (OK) lens fitting decentration on the Zernike coefficients of the reshaped anterior corneal surface. Methods: This study comprised a review of 106 right eyes and measurements of corneal topography both before OK and at 1-month follow-up visit. A routine was designed to calculate local corneal surface astigmatism and assist the determination of OK lens fitting decentration from pupil center...
2018: Eye and Vision (London, England)
Tanuj Dada, Dewang Angmo, Shibal Bhartiya, Karthikeya Ramananda
We describe a novel technique to bleb needling by injecting subconjunctival ologen through an intraocular lens (IOL) delivery system to modulate wound healing in a failing filter. Bleb needling with 26G needle was performed, followed by subconjunctival injection of a biodegradable collagen implant using an IOL delivery system with cartridge in two eyes with a failing filter and high intraocular pressure (IOP). Postoperatively, the bleb was diffusely elevated, and the IOP was maintained between 10 and 14 mmHg at 6 weeks, 3 and 6 months follow-up...
January 2018: Oman Journal of Ophthalmology
Ratnesh Ranjan, George Joseph Manayath, Udayasree Avadhani, Venkatapathy Narendran
The development of a full-thickness macular hole (FTMH) after pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment (RRD) repair is a rare occurrence. We report the first case of rapid MH formation with internal limiting membrane (ILM)-like hyper-reflective bridging membrane under silicone oil (SO) meniscus, noted on the first postoperative day (POD) postvitrectomy for RRD. A 57-year-old man presented with best-corrected visual acuity (BCVA) of perception of light with immature cataract and total RRD in the left eye...
January 2018: Oman Journal of Ophthalmology
Xing-Feng Zhu, Qi Wei, Da-Jian Wu, Xiao-Jun Liu
An acoustic anisotropic lens (AAL) based on large mass-density modulation depth (LMMD) medium is proposed for subwavelength imaging. The underlying mechanism for converting evanescent components into propagating waves is attributed to the strong suppression of the transverse velocity field component in LMMD medium. In addition, the proposed lens can operate in a broadband manner, which is more flexible in practical applications. Both transfer matrix method and finite element method are used to corroborate the subwavelength imaging capabilities of the proposed lens...
March 21, 2018: Scientific Reports
Sobia Khan, Ashley Vandermorris, John Shepherd, James W Begun, Holly Jordan Lanham, Mary Uhl-Bien, Whitney Berta
BACKGROUND: Complexity thinking is increasingly being embraced in healthcare, which is often described as a complex adaptive system (CAS). Applying CAS to healthcare as an explanatory model for understanding the nature of the system, and to stimulate changes and transformations within the system, is valuable. MAIN TEXT: A seminar series on systems and complexity thinking hosted at the University of Toronto in 2016 offered a number of insights on applications of CAS perspectives to healthcare that we explore here...
March 21, 2018: BMC Health Services Research
Maud Hickey
The purpose of this long-term qualitative study was to uncover evidence that might support components of positive youth development (PYD) in a music composition program at an urban youth detention center. The constructs of PYD come from self-determination theory-competence, autonomy, and relatedness-and formed the theoretical lens from which the data were analyzed. Over a period of 5 years, more than 700 youth participated in the program and created primarily rap music compositions. Comments from their feedback, as well as interviews, were analyzed using qualitative content analysis...
March 1, 2018: International Journal of Offender Therapy and Comparative Criminology
Amelia R I Lindsey, Tamanash Bhattacharya, Irene L G Newton, Richard W Hardy
At the forefront of vector control efforts are strategies that leverage host-microbe associations to reduce vectorial capacity. The most promising of these efforts employs Wolbachia , a maternally transmitted endosymbiotic bacterium naturally found in 40% of insects. Wolbachia can spread through a population of insects while simultaneously inhibiting the replication of viruses within its host. Despite successes in using Wolbachia -transfected mosquitoes to limit dengue, Zika, and chikungunya transmission, the mechanisms behind pathogen-blocking have not been fully characterized...
March 21, 2018: Viruses
Mohamed A Farag, Amira R Khattab, Anja Ehrlich, Matthias Kropf, Andreas G Heiss, Ludger A Wessjohann
Lens culinaris and several Lupinus species are two legumes regarded as potential protein resources aside from their richness in phytochemicals. Characterization of their metabolite composition is warranted as a sustainable functional food. This study presents a discriminatory-holistic approach for metabolites profiling in accessions of four lentil cultivars and four lupinus species via gas chromatography-mass spectrometry. A total of 107 metabolites were identified encompassing organic and amino acids, sugars and sterols along with anti-nutrients viz...
March 21, 2018: Journal of Agricultural and Food Chemistry
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
Takuya Kataoka, Motohiro Kamei
PURPOSE: To report a novel technique for intrascleral fixation of a posterior chamber intraocular lens using a silicone microtube to manipulate the haptics into position. METHODS: Intrascleral fixation was performed in six eyes and the results evaluated in this retrospective case series. A silicone microtube with a 0.2-mm external diameter was passed from a sclerocorneal incision through the chamber and a sclerotomy made using a 30-gauge needle. The tips of the intraocular lens haptics were connected to the silicone microtube outside the eye...
March 20, 2018: Retina
Haeng Jin Lee, Jeong Hun Kim, Seong Joon Kim, Young Suk Yu
PURPOSE: We evaluated the long-term surgical outcome and lens complications in children with persistent pupillary membrane following removal using vitreous scissors. METHODS: Patients diagnosed with persistent pupillary membrane who received surgical treatment from 1987 to 2012 were retrospectively reviewed. The removal was performed using vitreous scissors after instillation of miotics. The minimum follow-up period after surgery was four years. Factors of age, sex, visual acuity, refractive errors, and complications during or after surgery were evaluated...
March 19, 2018: Korean Journal of Ophthalmology: KJO
Moses Kim, Jae Hyung Kim, Tae Hyung Lim, Beom Jin Cho
PURPOSE: To evaluate and compare visual acuity and reading speed for Korean language between a diffractive bifocal and trifocal intraocular lens (IOL) of the same material and haptic design. METHODS: We reviewed the medical records of the patients who had undergone bilateral cataract surgery with bifocal IOLs (AT LISA 801) on the both eyes (bifocal group) and trifocal IOLs (AT LISA tri 839 MP, trifocal group). The main outcome measures were the uncorrected distance, intermediate, and near visual acuity (uncorrected distance visual acuity [UCDVA], uncorrected intermediate visual acuity [UCIVA], and uncorrected near visual acuity [UCNVA]) and corrected distance, near, and distance-corrected intermediate visual acuity (corrected distance visual acuity [CDVA], corrected near visual acuity [CNVA], and distance-corrected intermediate visual acuity [DCIVA]) at last postoperative follow-up month...
March 19, 2018: Korean Journal of Ophthalmology: KJO
Joshua W Elder, Garrett DePalma, Jesse M Pines
The opioid epidemic is the most significant modern-day, public health crisis. Physicians and lawmakers have developed methods and practices to curb opioid use. This article describes one method, prescription drug monitoring programs (PDMP), through the lens of how to optimize use for emergency departments (ED). EDs have rapidly become a central location to combat opioid abuse and drug diversion. PDMPs can provide emergency physicians with comprehensive prescribing information to improve clinical decisions around opioids...
March 2018: Western Journal of Emergency Medicine
Alex D Hwang, Merve Tuccar-Burak, Robert Goldstein, Eli Peli
Purpose: Oncoming headlight glare (HLG) reduces the visibility of objects on the road and may affect the safety of nighttime driving. With cataracts, the impact of oncoming HLG is expected to be more severe. We used our custom HLG simulator in a driving simulator to measure the impact of HLG on pedestrian detection by normal vision subjects with simulated mild cataracts and by patients with real cataracts. Methods: Five normal vision subjects drove nighttime scenarios under two HLG conditions (with and without HLG: HLGY and HLGN, respectively), and three vision conditions (with plano lens, simulated mild cataract, and optically blurred clip-on)...
2018: Frontiers in Psychology
Yuchao Zhang, Xiaodong Yang, Jie Gao
Twisting light in both phase and intensity has recently drawn great interests in various fields related to light-matter interactions such as optical manipulation of particles and quantum entanglement of photons. Conventionally, bulky optical components are required to produce such twisted optical beams, which significantly limits their applications in integrated photonics and optical chips. Here, we design and demonstrate aluminum plasmonic metasurfaces consisting of nanoslit antennas as ultracompact beam converters to generate the focused twisted beams in both phase and intensity across the visible wavelength range...
March 20, 2018: Scientific Reports
Ying Zhao, Pingbao Wang, Xiaobo Xia, Qian Tan, Weitao Song, Qing Chen
To explore surgical treatment for persistent pupillary membrane (PPM) and its effect.
 Methods: The medical records and postoperative follow-up data for 12 consecutive patients (16 eyes), who were submitted to PPM resection in Xiangya Hospital, Central South University from March 2011 to August 2016, were retrospectively reviewed.
 Results: Among 12 consecutive patients (16 eyes), 8 patients (12 eyes) with PPM and clear lens were submitted to simply PPM resection, and 4 patients (4 eyes) with PPM and cataract were submitted to PPM resection combined with cataract surgery...
February 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
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