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Eye & Contact Lens

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https://www.readbyqxmd.com/read/27902509/paecilomyces-lilacinus-keratitis-in-a-soft-contact-lens-wearer
#1
Rosa Monno, Giovanni Alessio, Silvana Guerriero, Carmen Capolongo, Carla Calia, Luciana Fumarola, Carlo Pazzani, Anna Di Taranto, Giuseppe Miragliotta
We describe a case of keratitis caused by Paecilomyces lilacinus in a contact lens wearer with a history of diabetes.
November 29, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27898517/comparision-of-optical-low-coherence-reflectometry-versus-ultrasonic-biometry-in-high-hypermetropia
#2
Rukiye Aydin, Sevil Karaman Erdur, Kubra Serefoglu Cabuk, Eyyup Karahan, Suleyman Kaynak
PURPOSE: To compare anterior chamber depth (ACD), axial length (AL), and lens thickness (LT) measurements obtained by the Lenstar LS 900 (Haag-Streit AG) optical low-coherence reflectometry with those obtained by the A-scan contact ultrasound among patients with moderate and high hypermetropia. METHODS: Fifty-two eyes of 52 patients with moderate and high hypermetropia (spherical equivalent of +4 D or more) were examined in this study measurements of ACD, AL, and LT obtained by Lenstar were compared with those obtained by applanation A-scan ultrasound...
November 24, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27898516/clinical-evaluation-of-large-diameter-rigid-gas-permeable-versus-soft-toric-contact-lenses-for-the-correction-of-refractive-astigmatism-a-multicenter-study
#3
Langis Michaud, Edward S Bennett, Stephanie L Woo, Renee Reeder, Bruce W Morgan, Amy Dinardo, Jennifer S Harthan
PURPOSE: This study aims to address the clinical performance of a large diameter rigid gas permeable lens (LRGP) in a group of subjects with low-to-moderate (0.75-2.75 D) refractive astigmatism. An additional goal was to determine whether soft toric or LRGP contact lenses performed better objectively in the correction of astigmatism and to determine which modality is preferred by subjects. METHODS: This was a multisite prospective cross-over clinical study. Ten asymptomatic contact lens wearers per site (four university clinics) were recruited and randomly assigned to group A or group B...
November 24, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27861262/tear-film-osmolarity-in-response-to-long-term-orthokeratology-treatment
#4
Amelia Nieto-Bona, María Nombela-Palomo, Gema Felipe-Márquez, Miguel A Teus
PURPOSE: To compare tear film osmolarity (TFO) measurements in non-contact lens (CL) wearers and wearers of hydrogel or overnight orthokeratology (OK) CLs, and to assess possible effects of long-term OK on TFO. METHODS: Overall, 108 subjects with moderate myopia participated in 2 experiments, and TFO was measured using the TearLab osmolarity system. In experiment 1, TFO measurements were made in 77 right eyes of 23 non-CL wearers, 26 hydrogel wearers, and 28 OK wearers...
November 16, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27768615/daily-wear-contact-lenses-manufactured-in-etafilcon-a-are-noninferior-to-two-silicone-hydrogel-lens-types-with-respect-to-hypoxic-stress
#5
Loretta B Szczotka-Flynn, Sara Debanne, Beth Ann Benetz, Tawnya Wilson, Noel Brennan
PURPOSE: This study hypothesized that a traditional high-water contact lens of moderate oxygen transmissibility (Dk/t) is noninferior to common silicone hydrogel (SH) lenses worn for daily wear with respect to measures of hypoxic stress. METHODS: Thirty-six habitual contact lens wearers completed wear of three lens types worn in a randomized order: etafilcon A (ACUVUE 2, control), lotrafilcon B (Air Optix Aqua), and comfilcon A (Biofinity). Central corneal thickness (CT) and limbal hyperemia were measured >2 hr after waking and after 6 to 8 hr of wear on days 1 and 7...
October 20, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27768614/irregular-corneas-improve-visual-function-with-scleral-contact-lenses
#6
Beatriz de Luis Eguileor, Jaime Etxebarria Ecenarro, Alaitz Santamaria Carro, Raquel Feijoo Lera
OBJECTIVES: To assess visual function in patients with irregular cornea who do not tolerate gas permeable (GP) corneal contact lenses and are fitted with GP scleral contact lenses (Rose K2 XL). METHODS: In this prospective study, we analyzed 15 eyes of 15 patients who did not tolerate GP corneal contact lenses and were fitted with scleral contact lenses (Rose K2 XL). We assessed visual function using visual acuity and the visual function index (VF-14); we used the VF-14 as an indicator of patient satisfaction...
October 20, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27763911/accounting-for-ethnicity-related-differences-in-ocular-surface-integrity-as-a-step-toward-understanding-contact-lens-discomfort
#7
Stefanie M Chan, Tatyana F Svitova, Meng C Lin
Contact lens discomfort is a common problem that can lead to unsuccessful or limited contact lens wear. Although many factors may contribute to contact lens discomfort, limited research has explored the influence of ethnicity-related differences in the anatomy and physiology of the ocular surface. Therefore, we performed a search of the literature in PubMed using key words related to "ocular surface" paired with the terms "race" and "ethnicity." The goal of this review was to determine potential areas of research regarding ethnicity differences, particularly between Asian and non-Asian eyes, in ocular surface integrity to advance our understanding of contact lens discomfort...
October 19, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27763910/short-term-and-long-term-changes-in-corneal-power-are-not-correlated-with-axial-elongation-of-the-eye-induced-by-orthokeratology-in-children
#8
Jacinto Santodomingo-Rubido, César Villa-Collar, Bernard Gilmartin, Ramón Gutiérrez-Ortega
PURPOSE: To assess the relationship between short-term and long-term changes in power at different corneal locations relative to the change in central corneal power and the 2-year change in axial elongation relative to baseline in children fitted with orthokeratology contact lenses (OK). METHODS: Thirty-one white European subjects 6 to 12 years of age and with myopia -0.75 to -4.00 DS and astigmatism ≤1.00 DC were fitted with OK. Differences in refractive power 3 and 24 months post-OK in comparison with baseline and relative to the change in central corneal power were determined from corneal topography data in eight different corneal regions (i...
October 19, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755290/mooren-ulcer-in-a-child-wearing-orthokeratology-contact-lenses
#9
Jaeyoung Kim, Mee Kum Kim, Won Ryang Wee, Joo Youn Oh
PURPOSE: To report a case of Mooren ulcer that developed in a pediatric patient wearing orthokeratology overnight contact lenses. METHODS: Case report. RESULTS: A 10-year-old boy was referred to our clinic because of progressive peripheral corneal ulcer in the right eye, despite the intensive use of fortified antibiotic eye drops. The patient had been using overnight orthokeratology lenses for 4 months before presentation of corneal ulcer...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755289/keratectasia-after-presbyopia-treatment-with-intracor
#10
Katherine Lun, Manotosh Ray
PURPOSE: To report a case of keratectasis of a patient underwent INTRACOR presbyopic treatment 5 years ago. METHODS: Case Report. RESULTS: Fifty-eight-year-old gentleman had presented with deteriorating vision in his left eye. He reported undergoing INTRACOR presbyopic treatment in that eye 5 years ago. At presentation, his best-corrected visual acuity was 20/40. Slit-lamp examination of the left eye showed an ectatic cornea with concentric corneal scars...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755288/the-relationship-between-morphology-and-function-of-the-meibomian-glands
#11
Hyo Myung Kim, Youngsub Eom, Jong Suk Song
Meibomian gland dysfunction (MGD) is a leading cause of dry eye disease (DED). Meibomian gland dysfunction is divided into two major categories based on meibomian gland secretion: low delivery and high delivery. The low-delivery states are further classified as either hyposecretory or obstructive subtype, and the high-delivery state is termed "hypersecretory MGD." Two parameters are commonly used to evaluate meibomian gland function: lipid layer thickness and meibum quality and expressibility. To evaluate the morphology of meibomian glands, meibography is used to detect meibomian gland dropout...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755287/biofilm-formation-on-bandage-contact-lenses-worn-by-patients-with-the-boston-type-1-keratoprosthesis-a-pilot-comparison-study-of-prophylactic-topical-vancomycin-15-mg-ml-and-linezolid-0-2
#12
Asim V Farooq, Joshua H Hou, Sarmad Jassim, Zeeshan Haq, Elmer Y Tu, Jose de la Cruz, Maria S Cortina
OBJECTIVES: To determine the rate of biofilm formation on bandage contact lenses worn by patients with the Boston type 1 keratoprosthesis (K-Pro) while on prophylactic topical vancomycin versus linezolid. METHODS: Patients wearing a bandage contact lens (BCL) with a K-Pro were eligible for enrollment. After irrigation of the ocular surface with 5% povidone-iodine solution, each patient was placed on either topical vancomycin 15 mg/mL or linezolid 0.2% BID for one month...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755286/multicenter-testing-of-a-risk-assessment-survey-for-soft-contact-lens-wearers-with-adverse-events-a-contact-lens-assessment-in-youth-study
#13
Luigina Sorbara, Aaron B Zimmerman, G Lynn Mitchell, Kathryn Richdale, Dawn Y Lam, Beth T Kinoshita, Robin L Chalmers, Heidi Wagner
PURPOSE: To test the ability of responses to the Contact Lens Assessment in Youth (CLAY) Contact Lens Risk Survey (CLRS) to differentiate behaviors among participants with serious and significant (S&S) contact lens-related corneal inflammatory events, those with other events (non-S&S), and healthy controls matched for age, gender, and soft contact lens (SCL) wear frequency. METHODS: The CLRS was self-administered electronically to SCL wearers presenting for acute clinical care at 11 clinical sites...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755285/objective-assessment-of-ocular-surface-response-to-contact-lens-wear-in-presbyopic-contact-lens-wearers-of-asian-descent
#14
Michel Guillon, Kathy Dumbleton, Panagiotis Theodoratos, Trisha Patel, Tom Karkkainen, Kurt Moody
INTRODUCTION: Contact lens wearers of Asian descent may be predisposed to experience microtrauma of the ocular surface as a result a thinner post-lens tear film and higher eyelid tension, and these effects would be anticipated to be most marked in an older population. The objective of this study was to quantify the mechanical effects of the study contact lenses on the ocular surface in a population of presbyopic contact lens wearers of Asian descent. METHODS: Twenty established presbyopic contact lens wearers (hydrogel n=5, none habitual wearers of etafilcon A lenses; silicone hydrogel n=15) of Asian descent were refitted with etafilcon A multifocal daily disposable contact lenses (1-DAY ACUVUE MOIST MULTIFOCAL) for a period of 1 month of daily lens wear...
October 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755163/epidemiology-and-outcome-of-microbial-keratitis-private-university-versus-urban-public-hospital-care
#15
David T Truong, Minh-Thuy Bui, H Dwight Cavanagh
PURPOSE: To review the epidemiology, risk factors, microbiologic spectrum, and treatment of microbial keratitis during a 5-year period at an urban public hospital in comparison with an adjacent private university practice. METHODS: Retrospective chart review in the 5-year interval, 2009 through 2014. Primary outcome measures included patient age at presentation, best-corrected visual acuity (BCVA), risk factors, culture and sensitivities, treatment, and complication occurrence...
October 7, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27755162/subtenon-injections-of-ranibizumab-arrest-growth-in-early-recurrent-pterygium
#16
Linda Rose, Julia M Byrd, Yousuf Qaseem
IMPORTANCE: Currently the only treatment for recurrent pterygium is surgery. This is a phase 1 trial investigating ranibizumab as a medical treatment for recurrent pterygium. OBJECTIVE: To assess the safety and efficacy of subtenon Ranibizimab for recurrent pterygia. DESIGN: Subjects with recurrent pterygium received subtenon ranibizumab and were followed for 1 year. Safety parameters were measured. Photographs were taken and quantitatively analyzed to measure the short-term (2 months) and long-term (5-26 months) response to treatment...
October 7, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27749500/objective-and-subjective-outcome-of-clear-lensectomy-with-toric-iol-implantation-after-corneal-collagen-cross-linking-in-selected-cases-of-keratoconus
#17
Waleed Ali Abou Samra, Eman Azmy Awad, Amr Hassan El Kannishy
AIM: To evaluate the visual and topographic outcomes of a two-stage approach treatment for selected cases of progressive keratoconus (KC); corneal collagen cross-linking (CXL) followed by phacoemulsification with toric intraocular lens (IOL) implantation. METHODS: The study included 9 eyes of 6 patients diagnosed with progressive KC, aged from 35 to 47 years (41.6±11.2 years). All studied eyes underwent a two-stage approach treatment: first corneal collagen CXL followed after at least 6 months by phacoemulsification with foldable toric IOL implantation in both eyes of three patients and only one eye of the other three patients...
October 3, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27749499/assessment-of-corneal-backward-light-scattering-in-diabetic-patients
#18
Pelin Özyol, Erhan Özyol
OBJECTIVES: To analyze corneal backward light scattering differences in patients with type 2 diabetes mellitus. METHODS: We enrolled 43 eyes from 43 diabetic patients and 40 eyes from 40 healthy controls. Corneal backward light scattering was evaluated using densitometry measurements from different corneal layers and zones obtained using Scheimpflug tomography (PentacamHR). RESULTS: When densitometry values were divided by depth, anterior layer of diabetic corneas displayed significantly higher corneal backward light scattering values than controls (32...
October 3, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27749498/correlations-of-in-vitro-assays-for-assessing-cytotoxicity-and-biocompatibility-of-contact-lens-multipurpose-solutions
#19
Ling C Huang, Mercedes Salvador-Silva, Ronika S Leang
OBJECTIVES: To demonstrate correlations among in vitro assays used for assessing cytotoxicity of contact lens multipurpose solution (MPS) and propose the use of multiple assays as a part of preclinical evaluation for MPS biocompatibility assessment. METHODS: The effect of four different MPSs on cell cytotoxicity, metabolic activity, and membrane integrity was performed by evaluating toxicity, expression of tight junction protein zonula occludens-1, and transepithelial electrical resistance in human corneal epithelial cells and Chinese hamster fibroblasts cells...
October 3, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27749473/evaluation-of-the-effect-of-cycloplegia-on-anterior-chamber-depth-in-cataract-patients-using-optical-low-coherence-reflectometry
#20
Ema Avdagic, Douglas R Lazzaro
PURPOSE: The study was performed to study the effect of cycloplegia on anterior chamber depth (ACD) in cataract eyes. One instrument (Lenstar) was used for all measurements. METHODS: Anterior chamber depth calculations were taken with the Lenstar in cataract eyes with a mean age of 71.9±8.8 years before instilling cycloplegic drops. Two drops of Tropicamide were then instilled in each eye and measurements were retaken between 30 to 45 min later. RESULTS: Cycloplegia with a mild agent used routinely in this practice location showed a statically significant effect on increasing ACD by 0...
September 30, 2016: Eye & Contact Lens
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