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Eye & Contact Lens

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https://www.readbyqxmd.com/read/29219900/diagnostic-challenges-in-nocardia-keratitis
#1
Joséphine Behaegel, Sorcha Ní Dhubhghaill, Carina Koppen
OBJECTIVE: To present a case of diagnostic confusion in Nocardia keratitis in a contact lens wearer and to illustrate the characteristic clinical findings of this rare entity. METHODS: Case report of Nocardia keratitis that was mistaken for acanthamoeba, herpetic, and fungal keratitis in three tertiary corneal referral centers before the correct diagnosis of Nocardia infection was made. RESULTS: A 29-year-old contact lens wearer was referred to our hospital for a contact lens-associated bacterial keratitis, not improving under standard bacterial treatment...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29219899/clinical-outcomes-using-oversized-back-plates-in-type-i-boston-keratoprosthesis
#2
Aaron R Kaufman, Andrea Cruzat, Kathryn A Colby
OBJECTIVES: To examine clinical outcomes of oversized titanium back plates in type I Boston keratoprosthesis (KPro) implantation. METHODS: Retrospective study of 22 sequential eyes (20 patients) undergoing type I KPro implantation with an oversized titanium back plate (larger than trephined wound diameter by 1.0 mm or more), performed by a single surgeon (K.A.C.) from June 2010 to November 2014. Data were collected regarding preoperative eye characteristics, surgical details, and postoperative clinical outcomes...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29219898/orthokeratology-and-contact-lens-quality-of-life-questionnaire-ocl-qol
#3
Colm McAlinden, Michael Lipson
OBJECTIVES: To develop a quality of life (QoL) instrument for patients fitted with Orthokeratology (OrthoK) and other modalities of contact lenses. METHODS: A 45-item pilot questionnaire was developed from an extensive literature review, focus groups, and interviews. Subsequently, 234 participants fitted with contact lenses (OrthoK, soft lenses, and gas permeable lenses) or spectacles completed the pilot questionnaire. Rasch analysis was used to assess the psychometric properties in terms of person separation, item fit statistics, category threshold ordering, differential item functioning (DIF), and targeting...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29219897/management-of-complex-epithelial-ingrowth-after-laser-in-situ-keratomileusis-using-fibrin-tissue-glue
#4
Lisa Y Chen, Jennifer S Kung, Edward E Manche
OBJECTIVES: To evaluate the efficacy and safety of adjunctive fibrin tissue glue in the treatment of complex epithelial ingrowth after laser in situ keratomileusis (LASIK). METHODS: A retrospective review was performed of 12 eyes in 12 patients treated for clinically significant epithelial ingrowth after LASIK with mechanical debridement of the ingrowth and placement of fibrin tissue glue. Primary outcome measurements including recurrence of ingrowth, visual acuity, and manifest refraction were evaluated at each postoperative examination...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29210829/in-vitro-evaluation-of-adhesion-of-two-acanthamoeba-strains-to-cosmetic-contact-lenses
#5
Berna B Bakay, Zubeyde A Polat
PURPOSE: To evaluate the factors affecting the adhesion of Acanthamoeba trophozoites to the surface of cosmetic contact lenses (CCLs). METHODS: Acanthamoeba castellanii and A. hatchetti trophozoites were inoculated onto CCLs (hema copolymer [HM] [38.5% H2O], phemfilcon [PF] [55% H2O], polymacon [PM] [38% H2O], polyhema [PH] [%42 H2O], and hema [HM55] [55% H2O]), and the number of trophozoites adhered to the lens surfaces was assessed over time, that is, at 15 min, 1, and 24 hr...
November 28, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29210828/predicting-short-term-subjective-vision-performance-of-contact-lenses-used-in-myopia-control
#6
Jennie Diec, Daniel Tilia, Varghese Thomas, Ravi C Bakaraju
OBJECTIVE: To investigate whether initial assessment of contact lenses prescribed for myopia control (MC) predicts short-term visual performance. METHOD: Retrospective analysis of 43 participants in a double-masked, randomized, cross-over trial wearing at least one lens: single-vision (SV) lens (1-DAY ACUVUE MOIST) or MC lenses (MiSight or Proclear Multifocal-Distance +2.00D). Participants completed questionnaires at the fitting visit, a take-home questionnaire (THQ) 3 days after fitting and finally at the assessment visit (≥5 days after fitting)...
November 28, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29210827/demarcation-line-in-the-human-cornea-after-surface-ablation-observed-by-optical-coherence-tomography-and-confocal-microscopy
#7
Meiyan Li, Yu Zhao, Qirui Xiao, Peijun Yao, Mingzi Piao, Ling Sun, Xingtao Zhou
PURPOSE: To investigate the long-term changes in anterior corneal structure after surface ablation. METHODS: In this retrospective study, patients who received surface ablation including laser-assisted subepithelial keratomileusis (LASEK) and epipolis laser in situ keratomileusis at the Department of Ophthalmology of Fudan University Eye and Ear, Nose and Throat (EENT) Hospital (Shanghai, People's Republic of China) were telephoned. Patients were asked to follow-up at the refractive center...
November 28, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29140825/recurrent-corneal-erosions-secondary-to-use-of-sleep-mask
#8
Elyse J McGlumphy, Jordan A Margo, Bennie H Jeng
A 31-year-old woman with a history of unusual appearing recurrent linear corneal epithelial defects and subepithelial scaring in both eyes underwent 2 years of evaluation and treatment. It was eventually discovered that the patient was using a sleep mask with excessive fabric pilling, which was found to be the source of her chronic epitheliopathy. After discontinuation of the sleep mask, the patient experienced complete resolution of symptoms. When evaluating recurrent corneal epithelial defects, external sources of repeated trauma, including sleepwear, should be investigated...
November 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29140824/beginnings-of-astigmatism-understanding-and-management-in-the-19th-century
#9
Andrzej Grzybowski, Piotr Kanclerz
Within the last 200 years, the perception of astigmatism has evolved from that of an infrequent and peculiar defect of the eye to a distortion almost as common as spherical refractive errors. Most of the significant findings on this condition were made in the 19th century, including the first description by Thomas Young (1773-1829) and the introduction of the treatment methods used today. The purpose of this study was to investigate the milestones in the understanding and management of astigmatism that occurred up to the year 1900...
November 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29140823/single-center-retrospective-study-on-meibomian-gland-loss-in-patients-with-ocular-chronic-graft-versus-host-disease
#10
Lijuan Que, Xiaofeng Zhang, Mengmeng Li
OBJECTIVES: This study aimed to analyze the influencing factors of meibomian gland loss in patients with ocular chronic graft-versus-host disease (GVHD) and its correlation with other clinical ocular surface assessment indexes. METHODS: The clinical data of patients with ocular chronic GVHD from the ocular surface and corneal outpatient clinic of the First Affiliated Hospital of Soochow University were reviewed from June 2012 to June 2016. The relationship between the percentage of meibomian gland acinar area and the influencing factors, such as patient's sex, age, transplantation method, human leukocyte antigen (HLA) matching, the time when eye discomfort appeared after transplantation (month), and the severity of ocular chronic GVHD, was investigated...
November 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29135738/efficacy-of-rebamipide-instillation-for-contact-lens-discomfort-with-dry-eye
#11
Tsutomu Igarashi, Maika Kobayashi, Chiemi Yaguchi, Chiaki Fujimoto, Hisaharu Suzuki, Hiroshi Takahashi
OBJECTIVE: To examine the effects of rebamipide ophthalmic solution on the symptoms, signs, and cytokine concentrations in tear fluid among soft contact lens (SCL) wearers with Dry eye disease (DED). METHODS: From November 2015 to June 2017, this open-label, single-arm study examined 40 eyes of 20 SCL wearers with DED who had been using daily disposable SCLs for >3 months (mean age, 30.0±8.33 years; range, 20-47 years). Signs, symptoms, and cytokine concentrations were assessed before and 4 weeks after starting 2% rebamipide ophthalmic solution 4 times/day...
November 10, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29116965/mechanical-properties-of-contact-lens-materials
#12
Eon Kim, Mou Saha, Klaus Ehrmann
OBJECTIVES: To evaluate the mechanical properties of commonly available soft contact lens materials and compare results using custom-built MicroTensometer. METHODS: The Young modulus, parameters for stress relaxation, and toughness of 18 types of single vision soft contact lenses were measured using custom-built MicroTensometer. Five lenses of each type were soaked in standard phosphate buffered saline and measured at a temperature of 35°C. Each lens was flattened and sliced into a rectangular strip sample using two parallel blades...
November 7, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29095724/evaluation-of-the-effect-of-moist-chamber-spectacles-in-patients-with-dry-eye-exposed-to-adverse-environment-conditions
#13
Mamoru Ogawa, Murat Dogru, Naoki Toriyama, Takefumi Yamaguchi, Jun Shimazaki, Kazuo Tsubota
PURPOSE: To evaluate the effect of moist chamber spectacle wear on the ocular surface and tear functions in a controlled wind exposure environment. METHODS: Twenty-eight eyes of 14 probable dry eye subjects (4 men, 10 women; mean age: 34.5 years) underwent constant wind exposure for 10 min without spectacle, with conventional spectacle wear, and with moist chamber spectacle wear. Dryness Visual Analog Scale (VAS) scores, tear evaporation, blink rate, tear film breakup testing, and fluorescein staining were performed before and after wind exposure...
October 31, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29077584/comfort-ocular-dryness-and-equilibrium-water-content-changes-of-daily-disposable-contact-lenses
#14
Eduardo Insua Pereira, Madalena Lira
OBJECTIVES: The objective of this investigation was to evaluate the level of comfort and ocular dryness during wear with six daily disposable contact lenses (DDCL) and also determine the changes in contact lens equilibrium water content (EWC) resulting from their wear. METHODS: In this contralateral open trial, 27 subjects were randomly fitted with six DDCL (stenfilcon A, delefilcon A, nelfilcon A, narafilcon A, nesofilcon A, and omafilcon A). The evaluation of comfort and ocular dryness sensation was recorded by the participants at two moments of the day (11 AM and 5 PM) over a period of 10 days of contact lens wear...
October 26, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29053555/case-series-analysis-of-myopic-progression-control-with-a-unique-extended-depth-of-focus-multifocal-contact-lens
#15
Jeffrey Cooper, Brett OʼConnor, Ronald Watanabe, Randall Fuerst, Sharon Berger, Nadine Eisenberg, Sally M Dillehay
OBJECTIVES: To determine the rate of myopia progression in children fit with a commercially available extended depth of focus (center distance) multifocal soft contact lens with attributes theoretically expected to slow the progression of myopia. METHODS: A retrospective case series analysis of 32 patients (ages 6-19 years, mean 10.98±2.95) from 10 practice locations was performed. At initial presentation, 44% wore spectacles, 37.5% spherical soft contact lenses, 15...
October 19, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28099281/vision-related-quality-of-life-before-and-after-deep-anterior-lamellar-keratoplasty
#16
Elvin Yildiz, Meltem Toklu, Ece Turan Vural
OBJECTIVES: To determine changes in the vision-related quality of life in patients undergoing deep anterior lamellar keratoplasty (DALK) by using the 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ-25). METHODS: Thirty-five patients who were scheduled for DALK between March 1, 2013, and March 1, 2014 were asked to complete the NEI VFQ-25. NEI VFQ-25 was administered again at 6 months and at 1 year postoperatively. Data on patients' age, sex, preoperative diagnosis, preoperative and postoperative best-corrected visual acuity, and postoperative astigmatism were recorded...
October 19, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29064838/study-of-the-effectiveness-of-multipurpose-solutions-on-the-bacterial-disinfection-of-silicone-hydrogel-contact-lenses-in-vitro
#17
Priscila C Correa, Aline C F Lui, Cely B Silva, Carolina P B Gracitelli, Lycia M Mimica, Suzethe M Sasagawa, Adamo L Netto
OBJECTIVES: To assess the antimicrobial effectiveness of multipurpose solutions in regard to the disinfection of silicone hydrogel contact lenses (CL) using a study of clinical bacterial isolates from ocular material. METHODS: Three multipurpose solutions (solution A: polyhexamethylene biguanide 0.00025 g/100 mL; solution B: polyquaternary-1 0.001% and myristamidopropyl dimethylamine 0.0006%; and solution C: polyaminopropyl biguanide 0.00013% and polyquaternary 0...
October 12, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29023313/mini-scleral-lenses-for-correction-of-refractive-errors-after-radial-keratotomy
#18
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
#19
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
#20
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
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