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Eye & Contact Lens

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https://www.readbyqxmd.com/read/29023313/mini-scleral-lenses-for-correction-of-refractive-errors-after-radial-keratotomy
#1
Hsiao-Sang Chu, I-Jong Wang, Grace A Tseng, Wei-Li Chen, Yu-Chih Hou, Fung-Rong Hu
OBJECTIVE: To evaluate the factors affecting clinical outcomes of correcting cumulative refractive errors or irregular astigmatism after radial keratotomy (RK) using mini-scleral lenses. METHODS: We retrospectively analyzed 36 eyes receiving mini-scleral lenses after RK from July 2011 to June 2016. Analyses included age, refractive errors, best spectacle-corrected visual acuity (BSCVA), best contact lens-corrected visual acuity (BCLCVA), topographic indices, RK treatment zone diameter (TZD), power difference (PrD) within the RK treatment zone, and decentration distance (DD) of the RK treatment zone center...
October 11, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29023312/prediction-of-descemet-membrane-perforation-during-deep-anterior-lamellar-keratoplasty-in-patients-with-keratoconus-with-stromal-scar
#2
Mehmet Cuneyt Ozmen, Nilufer Yesilirmak, Bahri Aydin, Kubra Serbest Ceylanoglu, Hatice Tuba Atalay, Fikret Akata
OBJECTIVES: To report big-bubble deep anterior lamellar keratoplasty (DALK) in patients with keratoconus with corneal stromal scar, and to investigate factors that can influence intraoperative Descemet membrane (DM) perforation. METHODS: A retrospective study included patients with keratoconus with central stromal scar that underwent DALK using the big-bubble technique. Best spectacle-corrected visual acuity (BSCVA), keratometry, minimum corneal thickness (MCT), stromal scar depth, and endothelial cell density (ECD) were recorded...
October 11, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29023311/comparison-of-extended-depth-of-focus-prototype-contact-lenses-with-the-1-day-acuvue-moist-multifocal-after-one-week-of-wear
#3
Jennifer Sha, Daniel Tilia, Danny Kho, Jennie Diec, Varghese Thomas, Ravi C Bakaraju
OBJECTIVES: To compare visual performance of extended depth-of-focus (EDOF) prototypes with a new, center-near, commercial, multifocal contact lens. METHODS: Presbyopic participants (n=57) wore 1-Day ACUVUE MOIST MULTIFOCAL (1DAMM) and an EDOF prototype for one week in a double-masked, prospective, cross-over, randomized clinical trial. Manufacturers' guide was used to select the first pair of lens to be fit based on subjective distance refraction and near addition...
October 11, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29023310/lid-parallel-conjunctival-folds-and-their-ability-to-predict-dry-eye
#4
Heiko Pult, Stefan Bandlitz
PURPOSE: The observation of lid-parallel conjunctival folds (LIPCOF) is reported to be useful in dry eye diagnoses. Around 70% of the European clinicians use this test in a dry eye clinic. This study investigated the sensitivity and specificity of LIPCOF to predict dry eye. METHODS: Ocular Surface Disease Index (OSDI) outcome, noninvasive break-up time (NIKBUT) using the Keratograph (Oculus, Wetzlar, Germany), and LIPCOF of 148 randomized selected patient reports (88 females; mean age=37...
October 11, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28991055/keratoconus-progression-in-patients-with-allergy-and-elevated-surface-matrix-metalloproteinase-9-point-of-care-test
#5
Cosimo Mazzotta, Claudio Traversi, Pierfrancesco Mellace, Simone A Bagaglia, Silvio Zuccarini, Rita Mencucci, Soosan Jacob
PURPOSE: To assess keratoconus (KC) progression in patients with allergies who also tested positive to surface matrix metalloproteinase 9 (MMP-9) point-of-care test. METHODS: Prospective comparative study including 100 stage I-II keratoconic patients, mean age 16.7±4.6 years. All patients underwent an anamnestic questionnaire for concomitant allergic diseases and were screened with the MMP-9 point-of-care test. Patients were divided into two groups: patients KC with allergies (KC AL) and patients KC without allergies (KC NAL)...
October 4, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28968300/scleral-lenses-in-the-management-of-corneal-irregularity-and-ocular-surface-disease
#6
Ellen Shorter, Jennifer Harthan, Cherie B Nau, Amy Nau, Joseph T Barr, David O Hodge, Muriel M Schornack
PURPOSE: To describe current practice patterns regarding the use of scleral lens therapy in the management of corneal irregularity and ocular surface disease among eye care providers who fit scleral lenses. METHODS: The Scleral Lenses in Current Ophthalmic Practice: an Evaluation (SCOPE) study group conducted an electronic survey of eye care providers from January 15 to March 31, 2015. Respondents ranked management options for corneal irregularity in the order in which they would generally consider their use...
September 29, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28968299/contact-lens-compliance-with-ophthalmologists-and-other-health-professionals
#7
Ayse Guzin Taslipinar Uzel, Mehmet Murat Uzel, Nilay Yuksel, Emine Kalkan Akcay
PURPOSE: To assess the compliance with contact lens (CL) use among ophthalmologists and other health professionals, and to identify the main noncompliant behaviors. METHODS: A cross-sectional, comparative study was designed for soft CL wearers. Twenty-five ophthalmologists, 24 medical doctors other than ophthalmologists, 20 nurses (health professionals), and 52 lay people (members of the public) subjects were included in the interview. The compliance rate for each behavior were determined and compared...
September 29, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28953601/management-of-reverse-pellucid-type-topography
#8
Hanefi Çakır, Canan Asli Utine
PURPOSE: Evaluation of the etiopathogenesis and management of topographic reverse pellucid pattern after rigid intraocular lens (IOL) implantation with wide limbal clear corneal incision (CCI). METHODS: Fifteen eyes with a history of gradual decrease in vision after IOL surgery with at least 6.5-mm CCI were diagnosed with wound dehiscence and were managed with tight resuturation, delayed, and selective suture removal. The improvement in uncorrected and corrected distance visual acuities (UDVA and CDVA, respectively) and refractive errors were analyzed, at least 6 months postoperatively...
September 26, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28953600/adhesion-of-stenotrophomonas-maltophilia-delftia-acidovorans-and-achromobacter-xylosoxidans-to-contact-lenses
#9
Ajay Kumar Vijay, Mark D P Willcox
PURPOSE: Contact lens cases become contaminated with microbes during use. We wished to compare the adhesion of uncommon bacterial contaminants isolated from lens cases to contact lenses with and without organic soil. METHODS: Strains of Delftia acidovorans (001), Stenotrophomonas maltophilia (002 and 006), and Achromobacter xylosoxidans (001) isolated from contact lens cases (test strains) and Pseudomonas aeruginosa (Paer1) isolated from eyes at the time of infiltrative response (control strain) were used...
September 26, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28953599/evaluation-of-pigment-distribution-and-depth-analysis-methods-for-decorative-soft-contact-lenses
#10
Yusuke Nomura, Hitomi Toida, Chie Fukui, Shigemi Kai, Ryusuke Nakaoka, Reiko Kato, Miyuki Uematsu, Koichi Ono, Atsushi Kanai, Yuji Haishima
OBJECTIVES: This study evaluates pigment component distribution and depth in decorative soft contact lenses (DSCLs) using a variety of analytical methods. METHODS: We sampled 18 DSCLs using optical microscopy, optical coherence tomography analysis, Z-stack analysis, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDX), and time-of-flight secondary ion mass spectrometry (TOF-SIMS) to evaluate the distribution and depth of pigment components...
September 26, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28953598/the-impact-of-scleral-contact-lens-vault-on-visual-acuity-and-comfort
#11
Heinz Otchere, Lyndon Jones, Luigina Sorbara
PURPOSE: To assess how varying degrees of corneal clearance of scleral contact lenses (ScCL) impact visual acuity (VA) and comfort in patients with corneal ectasia. METHOD: Three ScCL were fitted to 20 subjects with previous diagnosis of either keratoconus (n=18) or pellucid marginal degeneration (n=2). Fitting of ScCL was based on corneal sagittal height (CSH) measured with Visante OCT at a 15-mm chord on the horizontal meridian. To select the ScCL from the diagnostic lens set, values of 325, 375, and 425 μm were randomly added in sequence to CSH...
September 26, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945653/release-of-moxifloxacin-from-corneal-collagen-shields
#12
Siwei Zhou, Kristin M Hunt, Arman S Grewal, Kimberly M Brothers, Deepinder K Dhaliwal, Robert M Q Shanks
OBJECTIVES: To investigate the diffusion of moxifloxacin through bandage contact lenses (BCLs) versus corneal collagen shields (CSs), the relative ability of BCLs and CSs to release moxifloxacin, and the potential of release of moxifloxacin from CSs in the clinical setting. METHODS: Using an in vitro model, the diffusion of 5% moxifloxacin across BCLs and CSs was compared. Next, the amount of drug release from BCLs and CSs soaked in 0.5% moxifloxacin was measured...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945652/comparison-between-viscous-teardrops-and-saline-solution-to-fill-orthokeratology-contact-lenses-before-overnight-wear
#13
Gonzalo Carracedo, Cesar Villa-Collar, Alba Martin-Gil, Maria Serramito, Leticia Santamaría
OBJECTIVE: To compare, in terms of efficacy, the differences between the use of saline solution and a viscous artificial tear to fill the lens during the first month of orthokeratology wear. METHODS: A pilot, double-masked, crossed, randomized, and prospective study was conducted. In this study, 20 subjects (14 males and 6 females) with a mean age of 16.29±6.22 years (range, 10-26) were fitted with orthokeratology contact lenses. For the study, nonpreserved 0.9% NaCl commercial saline solution (Avizor, Madrid, Spain) and nonpreserved artificial teardrops with 0...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945651/accuracy-and-repeatability-of-an-anterior-segment-swept-source-optical-coherence-tomographer
#14
Rajini Peguda, Pauline Kang, Vinod Maseedupally, Helen Swarbrick
OBJECTIVES: To assess accuracy and repeatability of the CASIA swept-source optical coherence tomographer (SS-OCT) in measuring contact lens (CL) radii of curvature and thicknesses compared with verified CL parameters and to investigate intrasession and intersession repeatability of the CASIA SS-OCT in measuring epithelial and total corneal thicknesses. METHODS: Rigid CLs with varying radii of curvature (front, rf; back, rb) and thicknesses were imaged with the CASIA SS-OCT across two sessions...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945650/ring-keratitis-from-topical-anesthetic-abuse-after-laser-epithelial-keratomileusis
#15
Burak Mergen, Akif Ozdamar, Ahmet Murat Sarici
A 28-year-old man underwent laser epithelial keratomileusis for the correction of myopia in both eyes. The patient subsequently had delayed corneal epithelial healing in both eyes and ring infiltrate in the left eye (LE). Corneal scrapings were obtained from the ocular surface and subjected to microscopic examination and culture. On identifying and preventing the use of topical proparacaine, the corneal epithelium healed in both eyes after the use of eye pressure patches. The ring infiltrate resolved in the patient's LE, leaving minor opacity at the inferior cornea...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945649/short-term-comfort-responses-associated-with-the-use-of-eyelid-cleansing-products-to-manage-demodex-folliculorum
#16
William Ngo, Lyndon Jones, Etty Bitton
PURPOSE: To quantify the discomfort over time of various eyelid cleansers against Demodex. METHODS: This was a prospective, randomized, controlled, crossover, open-label study that enrolled 26 participants. The cleansers used in this study were Biotissue Cliradex (CD), OCuSOFT Lid Scrubs Plus (OP), OCuSOFT OUST Demodex Swabstix (ODS), TheraTears Theralid (TT), NovaBay Avenova (NA). Bausch+Lomb Sensitive Eyes Plus saline was used as a control. Participants were asked to close their eyes as the product was gently rubbed (10 cycles of gentle lateral motion) into the eyelashes...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945648/clinical-study-of-mitomycin-c-in-reducing-haze-formation-after-ultraviolet-a-riboflavin-crosslinking-for-keratoconus
#17
Linlin Xu, Xiangchen Tao, Zhiwei Li, Yanyun Xu, Wei Zhu, Huijuan Xu, Wei Pu, Yi Xie, Guoying Mu
OBJECTIVES: To evaluate the safety and efficacy of mitomycin C (MMC) in haze formation after ultraviolet A/riboflavin corneal crosslinking (CXL) for progressive keratoconus. METHODS: A total of 60 keratoconic eyes of 48 patients were enrolled in this prospective comparative study after obtaining informed consent. In the CXL group, standard corneal CXL was performed, whereas in the CXL+MMC group, 0.02% MMC was used for 30 s soon after CXL. Comprehensive ophthalmologic examinations were performed on all patients before surgery and at 1, 3, 6, and 12 months after surgery...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945647/investigation-of-ocular-tear-ferning-in-controlled-and-uncontrolled-diabetic-subjects
#18
Ali M Masmali, Yahya A Maeni, Gamal A El-Hiti, Paul J Murphy, Turki Almubrad
OBJECTIVES: To investigate the ocular tear film in controlled and uncontrolled diabetes mellitus (DM) subjects and the relationship between dry eye and diabetes. METHODS: One hundred twenty-four diabetes adults (65 male and 59 female, with 62 controlled and 62 uncontrolled DM) were assessed by McMonnies dry eye questionnaire, tear break-up time (TBUT), phenol red thread (PRT) test. In addition, tear samples were collected from the lower tear meniscus of right eyes and dried onto glass slides under controlled room temperature (25°C) and humidity (40%)...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945646/efficacy-of-toric-contact-lenses-in-fitting-and-patient-reported-outcomes-in-contact-lens-wearers
#19
Stephanie M Cox, David A Berntsen, Katherine M Bickle, Jessica H Mathew, Daniel R Powell, B Kim Little, Kathrine Osborn Lorenz, Jason J Nichols
OBJECTIVES: To assess whether patient-reported measures are improved with soft toric contact lenses (TCLs) compared with soft spherical contact lenses (SCLs) and whether clinical time needed to fit TCL is greater than SCL. METHODS: Habitual contact lens wearers with vertexed spherical refraction +4.00 to +0.25 D or -0.50 to -9.00 D and cylinder -0.75 to -1.75 DC were randomly assigned to be binocularly fitted into a TCL or SCL, and masked to treatment assignment...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28945645/corneal-biomechanical-parameters-with-corneoscleral-contact-lenses-in-post-laser-in-situ-keratomileusis-eyes
#20
Juan C Montalt, Esteban Porcar, Enrique España-Gregori, Cristina Peris-Martínez
OBJECTIVE: To evaluate corneal biomechanical parameters wearing corneoscleral contact lenses (CScL) in patients with irregular corneas after laser in situ keratomileusis (LASIK). METHODS: Data from patients fitted with CScL because of corneal surface irregularities after complicated LASIK surgery were selected by two eye clinics. Previously and after 1 year of CScL fitting, corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOPcc), and central corneal thickness were evaluated...
September 21, 2017: Eye & Contact Lens
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