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Eye & Contact Lens

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https://read.qxmd.com/read/30741777/blunt-scissors-stromal-dissection-technique-compared-with-big-bubble-deep-anterior-lamellar-keratoplasty
#1
Ahmet Yucel Ucgul, Nilufer Yesilirmak, Armagan Yuvarlak, Bahri Aydin, Mehmet Cuneyt Ozmen, Fikret Akata
OBJECTIVES: To evaluate the clinical findings and results of new modified manual deep anterior lamellar keratoplasty (M-DALK) technique compared with a big-bubble DALK (BB-DALK) technique in eyes with corneal scars or lesions. METHODS: A prospective, nonrandomized, comparative study included 65 eyes of 65 patients treated by M-DALK using the blunt scissors lamellar dissection technique or standard BB-DALK. Visual acuity, endothelial cell density, corneal cylinder (Cyl), central corneal thickness (CCT), residual stromal thickness and aberrometric values were recorded pre-treatment and 1, 3, 6, 12 and 18 months after treatment...
February 5, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30747729/impact-of-corneoscleral-contact-lens-usage-on-corneal-biomechanical-parameters-in-keratoconic-eyes
#2
Esteban Porcar, Juan Carlos Montalt, Enrique España-Gregori, Cristina Peris-Martínez
OBJECTIVE: To analyze the changes in corneal biomechanical parameters of keratoconic eyes with and without intracorneal ring segment (ICRS) implants after 1 year of corneoscleral contact lens (CScL) wear. METHODS: Seventy-four eyes of 74 patients were divided into three groups: healthy subjects (29 eyes, control group), and 2 groups of subjects with keratoconic eyes (one group of 20 eyes with ICRS implants and one of 25 eyes without them), which were fitted with CScL...
February 4, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30724841/systematic-review-on-therapeutic-strategies-to-minimize-corneal-stromal-scarring-after-injury
#3
Sum S Kwok, Kendrick C Shih, Yashan Bu, Amy C-Y Lo, Tommy C-Y Chan, Jimmy S-M Lai, Vishal Jhanji, Louis Tong
OBJECTIVES: To evaluate recent studies on available and experimental therapies in preventing or minimizing corneal stromal scarring after injury. METHODS: We performed an Entrez PubMed literature search using keywords "cornea," "scarring," "haze," "opacity," "ulcer," "treatments," "therapies," "treatment complications," and "pathophysiology" resulting in 390 articles of which 12 were analyzed after filtering, based on English language and publication within 8 years, and curation for relevance by the authors...
February 1, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30724840/diversity-of-ocular-surface-bacterial-microbiome-adherent-to-worn-contact-lenses-and-bacterial-communities-associated-with-care-solution-use
#4
Mauricio A Retuerto, Loretta Szczotka-Flynn, Pranab K Mukherjee, Sara Debanne, Sudha K Iyengar, Brian Richardson, Mark Cameron, Mahmoud A Ghannoum
PURPOSE: This study assessed microbiome adherent to contact lenses and defined the bacterial communities associated with use of lens care solutions. METHODS: Among 84 lenses screened for adherent ocular surface bacterial microbiome using 16S rRNA molecular amplification, 63 (75%) generated bacterial-specific amplicons processed using the Ion Torrent Personal Genome Machine workflow. Data were stratified by solution use (peroxide vs. polyhexamethylene biguanide [PHMB]-preserved multipurpose solution [MPS])...
February 1, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30724839/longitudinal-evaluation-of-the-progression-of-keratoconus-using-a-novel-progression-display
#5
Pinar Kosekahya, Mehtap Caglayan, Mustafa Koc, Hasan Kiziltoprak, Kemal Tekin, Cemile Ucgul Atilgan
OBJECTIVES: To evaluate the longitudinal tomographic changes and to compare the discriminatory potential of a novel progression display between progressive and nonprogressive keratoconic eyes. METHODS: Retrospective evaluation was made of 81 eyes of 81 patients with keratoconus who had undergone Scheimpflug measurements at least twice with an interval of 12 months or longer between each measurement. The progressive group was defined as 36 eyes, which showed progression according to the definition of the global consensus on keratoconus and ectatic diseases when 2 of the 3 criteria were met, and the other 45 eyes were considered the nonprogressive group...
February 1, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30724838/chronic-conjunctivitis-from-a-retained-contact-lens
#6
Jawad I Arshad, Asma Saud, Darrell E White, Natalie A Afshari, Rony R Sayegh
PURPOSE: To help clinicians diagnose and manage unilateral recalcitrant chronic bacterial conjunctivitis secondary to a retained soft contact lens and describe the first report of Gram-negative bacteria causing this condition. METHODS: Chart review of successive cases presenting with unilateral chronic conjunctivitis with positive cultures and a retained contact lens. RESULTS: Three cases were identified and described. Culturing of the retained contact lenses grew Pseudomonas aeruginosa in the first case, Achromobacter xylosoxidans in the second, and Staphylococcus epidermidis in the third...
February 1, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30707128/central-toxic-keratopathy-after-contact-lens-wear-and-mechanical-debridement-clinical-characteristics-and-visual-and-corneal-tomographic-outcomes
#7
Darren Shu Jeng Ting, Saurabh Ghosh
OBJECTIVES: To highlight the clinical characteristics, and visual and corneal tomographic outcomes of central toxic keratopathy (CTK) after contact lens (CL) wear and mechanical debridement. METHODS: A retrospective observational case series with literature review. RESULTS: Four patients (4 eyes) were included in this study; 3 (75%) females, mean age 29.3±8.1 years. The mean follow-up was 13.5±7.5 months. Early central or paracentral stromal opacification, assuming an inverse dome-shaped pattern observed under anterior-segment optical coherence tomography, with corneal flattening (Kmean 40...
January 29, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30707127/clinical-features-of-pingueculitis-revealed-by-anterior-segment-optical-coherence-tomography-findings
#8
Han Song, Gabriel M Rand, Ji-Won Kwon
PURPOSE: To investigate clinical features and treatment outcomes of pingueculitis with morphological assessments using anterior segment optical coherence tomography (AS-OCT). METHODS: In this retrospective observational study, we examined 22 eyes of 22 patients with pingueculitis. All patients were treated with the same 2-week course of prednisolone acetate 1% drops four times per day. The clinical parameters evaluated were surface dimensions determined by slitlamp biomicroscopy, cross-sectional dimensions determined by AS-OCT, and symptom scores determined by patient surveys...
January 29, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30707126/absorption-and-extraction-of-inflammatory-mediators-from-contact-lens-materials
#9
Cecilia Chao, Kathryn Richdale, Mark Willcox
OBJECTIVES: This report aimed to explore whether certain inflammatory mediators were absorbed, extracted, or bound by various contact lens materials. METHODS: Comfilcon A, balafilcon A, omafilcon A, and etafilcon A were soaked in 500 and 100 pg/mL of interleukin-8 (IL-8), matrix metalloproteinase-9 (MMP-9), or interleukin-1 receptor antagonist (IL-1Ra), and also in combined solutions of inflammatory mediators (500 pg/mL or 100 pg/mL) separately. Lenses were then extracted in 1:1 2% trifluoroacetic acid:acetonitrile...
January 29, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30688676/assessment-of-mir-182-mir-183-mir-184-and-mir-221-expressions-in-primary-pterygium-and-comparison-with-the-normal-conjunctiva
#10
Gökhan İçme, Ayça Yilmaz, Erdem Dinç, Ayşegül Görür, Şenay Balci Fidanci, Lülüfer Tamer
OBJECTIVES: The aim of this study was to investigate the expression levels of miR-126-3p, miR-182-5p, miR-183-5p, miR-184, miR-221-3p, and miR-205-5p in primary pterygium tissue and compare these levels with those in healthy conjunctiva tissue. METHODS: Twenty-four patients who were diagnosed with grade 3 primary pterygium and scheduled for surgery between January 2014 and January 2016 and had no systemic disease or other ocular pathology were included in the study...
January 22, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30664033/-new-year-new-name-what-s-in-a-name
#11
Michelle K Rhee
No abstract text is available yet for this article.
January 11, 2019: Eye & Contact Lens
https://read.qxmd.com/read/30608243/the-role-of-soft-contact-lens-wear-on-meibomian-gland-morphology-and-function
#12
Ömür Uçakhan, Mehtap Arslanturk-Eren
PURPOSE: To evaluate the impact of soft contact lens (CL) wear on the morphology and function of the meibomian glands (MG). METHODS: One hundred seventy-three eyes of 87 soft CL wearers and 103 eyes of 55 age-matched healthy volunteers were included into this study. The patients were divided into 3 groups according to the total duration of lens wear: less than 3 years, 3 to 7 years, and more than 7 years. Ocular Surface Disease Index (OSDI) scores, slitlamp biomicroscopy findings, fluorescein staining of the ocular surface, tear film break-up time (BUT), Schirmer I test, and meibography findings were recorded in all patient eyes and were compared with controls...
December 28, 2018: Eye & Contact Lens
https://read.qxmd.com/read/30601291/vision-performance-and-accommodative-binocular-function-in-children-wearing-prototype-extended-depth-of-focus-contact-lenses
#13
Daniel Tilia, Jennifer Sha, Varghese Thomas, Ravi C Bakaraju
OBJECTIVE: To assess two prototype contact lenses (CLs) that extend depth of focus through deliberate manipulation of multiple spherical aberration terms (extended depth-of-focus [EDOF]) for visual performance, accommodative and binocular function, and objective static near refraction against a single-vision (SV) CL. METHOD: This was a prospective, randomized, cross-over, single-masked (participant) clinical trial in which 16 myopic children wore 2 prototype CLs (EDOFL/EDOFH) designed for presbyopes and a SV CL, each for one week...
December 27, 2018: Eye & Contact Lens
https://read.qxmd.com/read/30585856/dry-eye-symptoms-may-have-association-with-psychological-stress-in-medical-students
#14
Joon Young Hyon, Hee Kyung Yang, Sang Beom Han
PURPOSE: To evaluate the prevalence and risk factors of symptomatic dry eye disease (DED) among medical students. METHODS: This cross-sectional study included 209 students at a medical school in Korea. Dry eye symptoms were assessed using a 9-item questionnaire, and DED was defined as having one or more dry eye symptoms often or all the time. The ocular surface disease index (OSDI) and visual analog scale (VAS) questionnaires were also administered to quantify the dry eye symptoms...
December 21, 2018: Eye & Contact Lens
https://read.qxmd.com/read/30550406/fourier-analysis-of-corneal-irregular-astigmatism-due-to-the-anterior-corneal-surface-in-dry-eye
#15
Shizuka Koh, Naoyuki Maeda, Mai Ogawa, Sanae Asonuma, Yoshihiro Takai, Kazuichi Maruyama, Stephen D Klyce, Kohji Nishida
OBJECTIVES: To evaluate corneal irregular astigmatism due to the anterior corneal surface using Fourier harmonic analysis with a Placido ring-based corneal topographer (Placido-based topographer) and three-dimensional anterior segment optical coherence tomography (OCT) in dry eyes. METHODS: Forty-four eyes of 44 subjects with dry eye and 20 eyes of 20 normal control subjects were enrolled. Corneal topographic data were obtained using a Placido-based topographer and OCT...
December 11, 2018: Eye & Contact Lens
https://read.qxmd.com/read/30562274/a-randomized-trial-to-evaluate-the-effect-of-toric-versus-spherical-contact-lenses-on-vision-and-eyestrain
#16
David A Berntsen, Stephanie M Cox, Katherine M Bickle, Jessica H Mathew, Daniel R Powell, Scott H Seidman, Borm Kim Little, Kathrine Osborn Lorenz, Jason J Nichols
OBJECTIVES: To compare the effect of toric versus spherical soft contact lenses on objective measures of visual performance using visual acuity and electromyography of the orbicularis oculi muscle. METHODS: Current soft contact lens wearers with -0.75 to -1.75 D astigmatism in each eye were binocularly fitted with toric (1-Day ACUVUE MOIST for astigmatism) and spherical (1-Day ACUVUE MOIST) contact lenses in random order. After each fitting and at 1-week follow-up, high- and low-contrast visual acuities were measured...
January 2019: Eye & Contact Lens
https://read.qxmd.com/read/30005053/pentacam-accuracy-in-discriminating-keratoconus-from-normal-corneas-a-diagnostic-evaluation-study
#17
Hassan Hashemi, Mehdi Khabazkhoob, Reza Pakzad, Salomeh Bakhshi, Hadi Ostadimoghaddam, Amir Asaharlous, Reihaneh Yekta, Mohamadreza Aghamirsalim, Abbasali Yekta
OBJECTIVES: This study aims to determine the diagnostic ability of Pentacam indices for keratoconus and identifying the best index for differentiating diseased from normal cases. METHOD: In this study, 150 keratoconus patients and 150 refractive surgery candidates with a definitive diagnosis of normal healthy corneas were enrolled. Initially, the placido disk topography imaging was performed. The keratoconus and normal corneas were defined based on placido disk topographic data from Rabinowitz-McDonnell...
January 2019: Eye & Contact Lens
https://read.qxmd.com/read/29944509/intrasubject-repeatability-and-interdevice-agreement-of-anterior-chamber-depth-measurements-by-orbscan-and-pentacam-in-different-grades-of-keratoconus
#18
Hassan Hashemi, Amir Asharlous, Mohammad Aghazadeh Amiri, Abbasali Yekta, Shahroukh Ramin, Azadeh Taheri, Mohamadreza Aghamirsalim, Mehdi Khabazkhoob
OBJECTIVES: To evaluate the repeatability of anterior chamber depth (ACD) measurements by Orbscan and Pentacam imaging devices in different grades of keratoconus. METHODS: One examiner performed 3 consecutive ACD measurements with both devices on 74 eyes of 42 keratoconus patient. Repeatability was assessed using intrasession test-retest variability. Within-subject SD was determined for repeatability, and the coefficient of variation was calculated for each measurement...
January 2019: Eye & Contact Lens
https://read.qxmd.com/read/29369229/stenotrophomonas-maltophilia-a-case-series-of-a-rare-keratitis-affecting-patients-with-bandage-contact-lens
#19
Henry D J Hogg, We Fong Siah, Arthur Okonkwo, Manjusha Narayanan, Francisco C Figueiredo
OBJECTIVES: Stenotrophomonas maltophilia is an opportunistic pathogen known to form biofilms on contact lens and case surfaces that may result in permanent visual loss in cases of microbial keratitis. Because of its multiple drug resistance and extremely low incidence, there is little consensus on treatment. We investigated the predisposing factors, management, and visual outcomes in a small case series of patients to better inform the management of this rarely reported keratitis. METHODS: Retrospective analysis of medical records was performed at a single tertiary referral center between 2011 and 2017...
January 2019: Eye & Contact Lens
https://read.qxmd.com/read/30489345/infantile-acute-conjunctivitis-induced-by-%C3%AE-lactamase-positive-amoxicillin-clavulanate-resistant-strain-of-haemophilus-influenzae-a-report-of-three-cases
#20
Noriko Inada, Jun Shoji, Satoru Yamagami
This study is a retrospectively recruited case series. We report three infants with acute conjunctivitis induced by β-lactamase-positive, ampicillin/clavulanic acid-resistant strains of Haemophilus influenzae (BLPACR). Patients with BLPACR-positive cultures were recruited from among 5,107 patients with inflammatory diseases of the ocular surface who underwent examinations, including bacterial culturing of conjunctival sac or corneal scrapings, between 2000 and 2015. Three BLPACR-positive patients were recruited, including a 10-month-old boy, a 4-month-old girl, and a 7-month-old girl...
November 22, 2018: Eye & Contact Lens
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