keyword
MENU ▼
Read by QxMD icon Read
search

Soft contact lens

keyword
https://www.readbyqxmd.com/read/28693972/polymer-interaction-driven-diffusionof-eyeshadow-in-soft-contact-lenses
#1
Silvia Tavazzi, Alessandra Rossi, Sara Picarazzi, Miriam Ascagni, Stefano Farris, Alessandro Borghesi
Soft contact lenses used for the correction of ametropia are often made of hydrogel and silicone-hydrogel materials. Since they are placed directly on the surface of the eye and they are hydrated by tears, eye cosmetics can compromise the lens performance and, even worse, can be transported from an external environment to the ocular surface through the contact lens. The diffusion of the dye component of a purple eyeshadow in soft contact lenses of different materials is here evaluated. Diffusivity is found to be typically higher in silicone-hydrogels than in hydrogels...
July 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28676045/folded-bandage-contact-lens-retention-in-a-patient-with-bilateral-dry-eye-symptoms-a-case-report
#2
Derek K-H Ho, John P Mathews
BACKGROUND: Bandage contact lenses are commonly used by ophthalmic practitioners to protect the patient's cornea. We report a case of folded bandage contact lens retained for six and a half years in the upper subtarsal space. To our knowledge, no other cases of retained bandage contact lens have previously been reported in the literature. CASE PRESENTATION: A patient was applied a pair of bandage contact lenses due to persistent ocular pain secondary to dry eye symptoms...
July 4, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28653613/myopia-correction-in-children-a-meta-analysis
#3
Yanhui Cui, Li Li, Qian Wu, Junyang Zhao, Huihui Chu, Gang Yu, Wenbin Wei
PURPOSE: The purpose of this study was to conduct a meta-analysis comparing rigid gas permeable lenses (RGP) with soft contact lenses (SCL), spectacles and orthokeratology (OK) lenses for myopia control with respect to axial length elongation, spherical equivalent and measures of corneal curvature. METHODS: Medline, Cochrane, EMBASE, and Google Scholar databases were searched to September 29, 2015 using the following keywords: rigid gas permeable contact lens; refractive error; and refractive abnormalities...
June 26, 2017: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/28617725/depth-profile-assessment-of-the-early-phase-deposition-of-lysozyme-on-soft-contact-lens-materials-using-a-novel-in-vitro-eye-model
#4
Han Qiao, Chau-Minh Phan, Hendrik Walther, Lakshman N Subbaraman, Lyndon Jones
OBJECTIVE: To characterize the location of fluorescently labeled lysozyme on commercial contact lenses (CLs) using an in vitro eye model that simulates tear volume, tear flow, air exposure, and mechanical wear. METHODS: One commercially available conventional hydrogel CL material (etafilcon A) and three silicone hydrogel CL materials (balafilcon A, lotrafilcon B, and senofilcon A) were evaluated in this study. The CLs were mounted on the in vitro eye model and exposed to artificial tear fluid containing fluorescein isothiocyanate (FITC)-labeled lysozyme for 2 and 10 hrs...
June 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28606616/the-effect-of-previous-soft-contact-lens-wear-on-corneal-refractive-surgery-outcomes
#5
Aoife Lloyd-McKernan, Luisa Simo Mannion, Veronica O'Dwyer
PURPOSE: To examine the influence of previous soft contact lens (SCL) wear on corneal refractive surgery (CRS) outcomes when SCL wear is ceased for two weeks versus twenty-four hours, and also when compared to no wear, prior to CRS. METHODS: A retrospective examination of CRS patient records was carried out for two groups of patients- who ceased SCL wear for two weeks (n=45) and for twenty-four hours (n=49) prior to CRS and compared to a non-contact lens (NCL) control group (n=45 and n=49, respectively)...
June 10, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28602547/non-invasive-objective-and-contemporary-methods-for-measuring-ocular-surface-inflammation-in-soft-contact-lens-wearers-a-review
#6
REVIEW
Cecilia Chao, Kathryn Richdale, Isabelle Jalbert, Kim Doung, Moneisha Gokhale
Contact lens wear is one of the primary risk factors for the development of ocular surface inflammatory events. The purpose of this review is to examine and summarize existing knowledge on the mechanisms of contact lens related ocular surface inflammation and the evidence for the effectiveness of current objective methods to measure ocular surface inflammation. Contact lens wear is postulated to trigger an inflammatory response on the ocular surface due to mechanical, chemical, hypoxic stress, or by the introduction of microbes and their toxins...
June 8, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28597601/endothelial-alterations-in-712-keratoconus-patients
#7
Susanne Goebels, Timo Eppig, Berthold Seitz, Nòra Szentmàry, Alan Cayless, Achim Langenbucher
PURPOSE: To investigate the effect of the severity of keratoconus on the corneal endothelium using specular microscopy. METHODS: Seven hundred and twelve eyes from the Homburg Keratoconus Center (HKC) database were included in this retrospective study. Corneal endothelium was evaluated using the Tomey EM-3000 specular microscope. Keratoconus-related topographic and tomographic data were obtained from Scheimpflug-based tomography (Oculus Pentacam(®) HR). Eyes were classified into stages 0 (healthy) to 4 (severe keratoconus) according to the Topographic Keratoconus Classification (TKC)...
June 9, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28586914/visual-performance-and-optical-quality-of-standardized-asymmetric-soft-contact-lenses-in-patients-with-keratoconus
#8
Asaki Suzaki, Naoyuki Maeda, Mutsumi Fuchihata, Shizuka Koh, Kohji Nishida, Takashi Fujikado
Purpose: To evaluate the visual performance and optical quality of a standardized asymmetric soft contact lens (SCL) used for correction of higher-order aberrations (HOAs) in eyes with keratoconus. Methods: We included 30 eyes (26 patients) with keratoconus (average K: 45.7 ± 2.3 diopters [D]). The patients were subjected to corneal tomography, aberrometry, measurements of manifest refraction and visual acuity (VA), and visual analog scale (VAS) assessments. The study lenses were made using a molding method and consisted of six standardized types, in which an asymmetric power distribution of approximately 2 to 12 D (2-D step) was used to correct HOAs...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28585430/satisfactory-clinical-outcome-following-delayed-repositioning-of-a-traumatic-post-lasik-flap-with-dislocation-and-shrinkage-managed-by-irrigation-stretching-and-debridement
#9
Ye-Sheng Xu, Wen-Jia Xie, Yu-Feng Yao
OBJECTIVE: To report surgical management and favorable outcome in a case with delayed repair of traumatic laser in situ keratomileusis (LASIK) flap dislocation with shrinkage and folds. METHODS: A 30-year-old man with a five-year history of bilateral LASIK experienced blunt trauma to his right eye followed by decreased vision for 5 weeks. The surgical management included initially softening the flap by irrigation with balanced salt solution (BSS). The shrinkage folds were carefully and gently stretched by scraping with a 26-gauge cannula accompanied by BSS irrigation...
June 2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28580485/modeling-soft-permeable-matter-with-the-proper-generalized-decomposition-pgd-approach-and-verification-by-means-of-nanoindentation
#10
Chady Ghnatios, Christian H Mathis, Rok Simic, Nicholas D Spencer, Francisco Chinesta
Understanding sliding and load-bearing mechanisms of biphasic soft matter is crucial for designing synthetic replacements of cartilage, contact-lens materials or coatings for medical instruments. Interstitial fluid pressurization is believed to be the intrinsic load-carrying phenomenon governing the frictional properties. In this study, we have characterized permeability and identified the fluid contribution to the support of load during Atomic Force Microscopy (AFM) nanoindentation of soft polymer brushes in aqueous environments, by means of the Proper Generalized Decomposition (PGD) approach...
June 5, 2017: Soft Matter
https://www.readbyqxmd.com/read/28550975/corneo-scleral-limbal-changes-following-short-term-soft-contact-lens-wear
#11
Alejandra Consejo, Maciej M Bartuzel, D Robert Iskander
PURPOSE: To assess whether short-term soft contact lens wear alters the anterior eye surface. METHODS: Twenty-two neophyte subjects wore soft contact lenses for a period of five hours. Topography based corneo-scleral limbal radius estimates were derived from height measurements acquired with a corneo-scleral profilometer. Additionally, central corneal thickness (CCT), anterior chamber depth (ACD), corneal curvature radius (R) and white-to-white (WTW) diameter were acquired with an OCT-assisted biometer...
May 24, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28544131/sclerocorneal-graft-and-sequential-removal-of-melted-cornea-after-severe-corneal-burn-with-perforation
#12
Anja Viestenz, Berthold Seitz, Hans-Gert Struck, Arne Viestenz
INTRODUCTION: Corneal burn grade IV usually leads to blindness. Several different surgical techniques remain challenging owing to the extensive tissue damage. Here, we introduce a novel technique with a 15 mm corneoscleral and limbal homologous graft combined with sequential autologous corneal removal ab interno, with a vitrectomy probe to save the anterior chamber angle. In vivo anatomy with optical coherence tomography is the surgical key. METHOD: A large 15 mm sclerocorneal graft is sutured on top of the remainder of the destroyed cornea and sclera after removal of the epithelium and conjunctiva, with anterior synechiolysis if necessary, peripheral iridectomy and conjunctivoplasty...
May 22, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28524144/-new-approaches-to-the-treatment-of-keratoconjunctivitis-sicca
#13
T N Safonova, O V Gladkova, I A Novikov, V I Boev, A A Fedorov
A new method has been developed for the treatment of severe forms of keratoconjunctivitis sicca (KCS) that involves the use of an original cyclosporine A (CyA) saturated soft contact lens (SCL) together with preservative-free artificial tears therapy. AIM: to evaluate the effectiveness of the newly developed treatment for KCS based on the use of medical SCL saturated with 0.05% CyA. MATERIAL AND METHODS: The patients (43 men, 60 eyes) with severe KCS were divided into 2 groups...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28520596/fungal-keratitis-associated-with-airborne-organic-debris-and-soft-contacts-lenses-case-reports-and-review-of-the-literature
#14
Michael J Hodkin, Ryan C Gustus
OBJECTIVES: To report two cases of fungal keratitis in soft contact lens wearers who were exposed to environmental mold. METHODS: Case reports, with review of the relevant literature. RESULTS: Two otherwise healthy middle-aged women who were soft contact lens wearers developed fungal keratitis about 1 week after heavy exposure to environmental mold. Culture results showed Aspergillus from one patient and the unusual combination of Trichoderma and Penicillium from the other...
May 16, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28514244/the-safety-of-soft-contact-lenses-in-children
#15
Mark A Bullimore
PURPOSE: There is increasing interest in fitting children with soft contact lenses. This review collates data from a range of studies to estimate the incidence of complications, specifically corneal infiltrative events and microbial keratitis, in patients under the age of 18 years. METHODS: Peer-review papers were identified using PubMed and the Web of Science. A broad range of studies are summarized including large-scale epidemiological studies of contact lens-related complications, hospital-based case series, long- and short-term prospective studies, and multicenter retrospective studies...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28501442/theoretical-fitting-characteristics-of-typical-soft-contact-lens-designs
#16
Anna Sulley, Kathrine Osborn Lorenz, James S Wolffsohn, Graeme Young
PUROSE: To calculate theoretical fitting success rates (SR) for a range of typical soft contact lens (SCL) designs using a mathematical model. METHOD: A spreadsheet mathematical model was used to calculate fitting SR for various SCL designs. Designs were evaluated using ocular topography data from 163 subjects. The model calculated SR based on acceptable edge strain (within range 0-6%) and horizontal diameter overlap (range 0.2-1.2mm). Where lenses had multiple base curves (BCs), eyes unsuccessful with the steeper BC were tested with the flatter BC and aggregate SR calculated...
May 10, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28447604/wearable-smart-sensor-systems-integrated-on-soft-contact-lenses-for-wireless-ocular-diagnostics
#17
Joohee Kim, Minji Kim, Mi-Sun Lee, Kukjoo Kim, Sangyoon Ji, Yun-Tae Kim, Jihun Park, Kyungmin Na, Kwi-Hyun Bae, Hong Kyun Kim, Franklin Bien, Chang Young Lee, Jang-Ung Park
Wearable contact lenses which can monitor physiological parameters have attracted substantial interests due to the capability of direct detection of biomarkers contained in body fluids. However, previously reported contact lens sensors can only monitor a single analyte at a time. Furthermore, such ocular contact lenses generally obstruct the field of vision of the subject. Here, we developed a multifunctional contact lens sensor that alleviates some of these limitations since it was developed on an actual ocular contact lens...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28410356/water-exposure-is-a-common-risk-behavior-among-soft-and-gas-permeable-contact-lens-wearers
#18
Aaron B Zimmerman, Kathryn Richdale, Gladys Lynn Mitchell, Beth T Kinoshita, Dawn Y Lam, Heidi Wagner, Luigina Sorbara, Robin L Chalmers, Sarah A Collier, Jennifer R Cope, Maya M Rao, Michael J Beach, Jonathan S Yoder
PURPOSE: To understand soft contact lens (SCL) and gas-permeable (GP) lens wearers' behaviors and knowledge regarding exposure of lenses to water. METHODS: The Contact Lens Risk Survey (CLRS) and health behavior questions were completed online by a convenience sample of 1056 SCL and 85 GP lens wearers aged 20 to 76 years. Participants were asked about exposing their lenses to water and their understanding of risks associated with these behaviors. Chi-square analyses examined relationships between patient behaviors and perceptions...
August 2017: Cornea
https://www.readbyqxmd.com/read/28359825/bilateral-simultaneous-infective-keratitis
#19
Lai Hiu On Annie, Manotosh Ray
AIM: To analyze the demographics, risk factors, clinical and microbiological characteristics of cases of bilateral simultaneous infective keratitis. METHODS: In this retrospective case series, patients with clinical evidence of bilateral simultaneous infective keratitis were identified from January 1, 2011 to August 31, 2016. Demographics, risk factors, clinical and microbiological characteristics, and treatment outcomes were analyzed. RESULTS: Five patients (ten eyes) with bilateral simultaneous infective keratitis were identified...
March 27, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28328726/clinical-outcomes-and-contact-lens-case-contamination-using-a-povidone-iodine-disinfection-system
#20
Jacqueline Tan, Ananya Datta, Katherine Wong, Mark D P Willcox, Ajay K Vijay
OBJECTIVE: To assess the incidence of adverse events during the use of a povidone-iodine disinfecting solution (cleadew) and the microbial contamination in contact lens cases. METHODS: A prospective, single-center, open-label, controlled study evaluating the use of cleadew cleaning and disinfecting system in existing daily wear soft contact lens wearers over a 3-month period was conducted. Ocular signs and symptoms during lens wear were assessed at baseline and after 1 and 3 months of using cleadew...
March 21, 2017: Eye & Contact Lens
keyword
keyword
15865
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"