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Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association

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https://www.readbyqxmd.com/read/30415960/profile-knowledge-and-attitude-of-contact-lens-users-regarding-contact-lens-wear-in-ghana
#1
Stephen Ocansey, Godwin Ovenseri Ogbomo, Emmanuel K Abu, Enyam K A Morny, Odua Adjei-Boye
BACKGROUND: Contact lenses are gaining popularity in developing countries as an alternative to spectacles for the correction of refractive errors. It is needful, therefore, to generate information to guide the mode of practice, and assist the industry in developing products for the increasing contact-lenses-user population. The purpose of this study was to identify the demographic profile, as well as the knowledge, attitude to wear and care regimen of wearers of contact lenses in Ghana...
November 8, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30415959/therapeutic-contact-lens-fitting-in-a-large-tertiary-referral-centre
#2
EDITORIAL
Waheeda Illahi, Martin Cardall
No abstract text is available yet for this article.
November 8, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30413377/longitudinal-corneal-tomographical-changes-in-eyes-of-patients-with-unilateral-and-bilateral-non-progressive-keratoconus
#3
Pinar Kosekahya, Mustafa Koc, Mehtap Caglayan, Hasan Kiziltoprak, Kemal Tekin, Cemile Ucgul Atilgan
AIM: To evaluate the tomographic indices changes in keratoconic eyes which were classified as unilateral and bilateral non-progressive keratoconus according to the definition of Global Consensus on keratoconus and ectatic disease. METHODS: Fifty non-progressive fellow eyes of 50 keratoconus patients who underwent corneal cross-linking treatment for the other progressive eyes (group 1), 50 eyes of 50 keratoconus patients who were followed up as bilateral non-progressive keratoconus (group 2), and 50 eyes of 50 control subjects (group 3) were included in this retrospective study...
November 7, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30413376/comparison-of-meibomian-gland-dropout-using-two-infrared-imaging-devices
#4
Stephanie Wong, Sruthi Srinivasan, Paul J Murphy, Lyndon Jones
PURPOSE: To measure the degree of meibomian gland (MG) dropout in the lower eyelid determined by analysis of images obtained from the LipiView II (LVII) and the Keratograph 5M (K5M). METHODS: The inferior eyelid of each participant was imaged in a random order using both devices. All images were subjectively assessed by a single-masked investigator to determine the extent of MG loss using the Arita 4-point meiboscore grading scale. The images were also semi-objectively analyzed with ImageJ to calculate the percentage of MG dropout, by tracing around the non-glandular area and the total exposed area of the lower lid...
November 7, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30413375/hand-hygiene-is-linked-to-microbial-keratitis-and-corneal-inflammatory-events
#5
REVIEW
Desmond Fonn, Lyndon Jones
Lack of or inadequate hand washing is a risk factor in the development of contact lens related microbial keratitis and corneal inflammatory events. In the public health domain there is compelling evidence that proper hand washing with soap can save lives. The purpose of this review is to draw attention to some of the public health literature in support of hand washing and how education can influence patients' hand hygiene behavior. Contact lens wearers are also guilty of poor hand washing behavior but there is scant evidence that education of hand washing procedures of lens wearers alters patient non-compliance...
November 7, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30401606/density-of-crystalline-lens-and-cornea-in-different-trimesters-of-pregnancy
#6
Yalçin Karakucuk, Hasan Altinkaynak, Selim Karakuçuk, Abdullah Beyoglu, Aysegul Çömez, Mustafa Demir
PURPOSE: To evaluate topographic measurements of the anterior segment and densitometric measurements of the cornea and lens by Pentacam HR in different trimesters of pregnancy. METHODS: This prospective study included 150 healthy pregnant women in their first, second, or third trimester (Groups 1, 2 and 3, respectively) and 54 non-pregnant healthy women (Group 0). Topographic measurements, including central corneal thickness (CCT), corneal volume (CV), anterior chamber depth (ACD), corneal densitometry (CD) and lens densitometry (LD), were done with the Pentacam HR (Oculus, Wetzlar, Germany)...
November 3, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30392894/indications-and-potential-contraindications-to-scleral-lens-wear
#7
REVIEW
Daddi Fadel, Elise Kramer
Research and reviews have resulted in clear indications for scleral lens (SL) wear. Those indications include visual rehabilitation; therapeutic use in managing ocular surface diseases, lid and orbit disorders; and refractive correction to enhance visual quality, comfort and quality of life. In some cases, the use of SLs may be contraindicated: the presence of low endothelial cell density; Fuchs' endothelial corneal dystrophy; glaucoma (because of the risk of an increase in intraocular pressure and the existence and location of draining devices and blebs); or overnight wear...
November 2, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30392895/improving-your-spectacle-patients-in-practice-experience-with-contact-lenses-during-frame-selection
#8
Michael Mayers, Meredith Jansen Bishop, Daryl Walerius, Kyle Conway, Melissa Usseglio, Scott Hasty, Scott Allison
PURPOSE: A market research survey was conducted to assess the impact of offering complimentary contact lenses (CLs) to spectacle-only wearing patients during frame selection with regards to their in-office experience, the transaction amount for their eyewear purchase and the likelihood of proceeding with a comprehensive contact lens fitting. METHODS: Five optometry offices in the US participated. An initial interviewing phase served as a control during which optometrists treated spectacle-only wearing patients in the usual manner for frame selection...
November 1, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30392893/in-vivo-anterior-scleral-morphometry-axial-length-and-myopia
#9
Alejandra Consejo, Jos J Rozema
PURPOSE: To in-vivo quantify differences in anterior scleral shape between myopes and emmetropes and relate them with axial length and refractive power. METHODS: Forty-two participants (84 eyes) were included in this study. Twenty-five participants were categorised as emmetropes and seventeen participants were categorised as myopes. The refractive state was measured monocularly using a closed window autorefractometer. Axial length was acquired using an optical biometer and topographical data was obtained using a non-contact corneo-scleral topographer...
November 1, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30391379/scleral-lens-fitting-and-assessment-strategies
#10
Jennifer Harthan, Ellen Shorter, Cherie Nau, Amy Nau, Muriel M Schornack, Xiaohua Zhuang, Jennifer Fogt
PURPOSE: To describe prescriber reported scleral lens fitting and assessment strategies. METHODS: The SCOPE (Scleral Lenses in Current Ophthalmic Practice Evaluation) study group designed and administered an IRB approved, electronic survey (REDCap) regarding current scleral lens fitting and assessment methods. The survey was distributed to attendees of the 2017 Global Specialty Lens Symposium. RESULTS: 95 practitioners responded to the survey...
October 31, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30389417/translation-and-validation-of-the-contact-lens-dry-eye-questionnaire-8-cldeq-8-to-the-spanish-language
#11
Manuel Garza-Leon, Francisco Amparo, Gabriela Ortíz, Paola de la Parra-Colin, Valeria Sanchez-Huerta, Francisco Beltran, Everardo Hernandez-Quintela
PURPOSE: To present the process of cultural and psychometric adaptation, and clinical validation of a new version in the Spanish language of the Contact Lens Dry Eye Questionnaire-8 (CLDEQ-8). MATERIALS AND METHODS: The translation-retro-translation method was applied to the CLDEQ-8 questionnaire. Two independent native Spanish-speaking translators adapted the questionnaire from English to Spanish, and then a committee of experienced clinicians (CE) evaluated the semantic equivalence and designed a Spanish version of the CLDEQ-8 questionnaire...
October 30, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30389416/long-term-effect-of-corneoscleral-contact-lenses-on-refractory-ocular-surface-diseases
#12
Sang-Mok Lee, Yu Jeong Kim, Se Hyun Choi, Joo Youn Oh, Mee Kum Kim
PURPOSE: To report the therapeutic effect of corneoscleral contact lenses (CLs) with a diameter of 14.0 mm on the refractory ocular surface diseases. METHODS: Medical records of 13 eyes (of nine patients) attempted for fitting with corneoscleral CLs for the management of the severe refractory ocular surface diseases were retrospectively reviewed including Stevens-Johnson syndrome (SJS; eight eyes) and chronic ocular graft-versus-host disease (GVHD; five eyes)...
October 30, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30366779/differences-between-tears-of-contact-lens-wearers-studied-by-photon-correlation-spectroscopy
#13
S Picarazzi, D Bergamaschi, S Tavazzi
PURPOSE: The purpose was to evaluate if there are differences between tears of contact lens (CL) wearers of different materials detectable by measuring the hydrodynamic diameter of tear components through photon correlation spectroscopy (PCS). METHODS: Tears of 59 CL wearers and tears of 39 non-wearers were collected by glass capillary. Wearers were divided into groups depending on the CL material: (i) hydrogels of II FDA group (H-II, 15 subjects), (ii) hydrogels of IV FDA group (H-IV, 13 subjects), (iii) silicone hydrogels (SH, 31 subjects)...
October 23, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30366778/pre-treatment-observation-of-axial-elongation-for-evidence-based-selection-of-children-in-hong-kong-for-myopia-control
#14
Sin-Wan Cheung, Maureen V Boost, Pauline Cho
PURPOSE: This study aimed to develop evidence-based guidelines for identifying suitable subjects for myopia control using orthokeratology (ortho-k). METHODS: Changes in axial elongation (AE) in the worse eyes of 66 myopic children (myopia between -0.75 and -4.50 D and astigmatism <2.00D, and aged 6 to <16 years old) who wore single-vision spectacles for seven months before switching to orthokeratology treatment for another seven months were observed. RESULTS: AE during ortho-k lens wear was affected by age and rate of progression during spectacle wear...
October 23, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30352742/on-the-reliability-repeatability-of-single-pachymetry-measures-taken-with-specular-microscope-based-assessments-of-the-human-corneal-endothelium
#15
Michael J Doughty
PURPOSE: To assess agreement between 3 measures of central corneal thickness (CCT) taken over a few minutes from nominally normal eyes with a non-contact specular microscope. METHODS: 100 eyes from 100 healthy adults (with an average age of 22 y) were assessed using the Topcon 3000 P instrument to obtain a high quality image of the endothelium and pachymetry. RESULTS: The group mean CCT values from the 1st, 2nd and 3rd measures were 0.519, 0...
October 20, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30337143/an-approach-for-simulating-the-fitting-of-rigid-gas-permeable-contact-lenses-using-3d-printing-technology
#16
Feng Zhao, Jing Wang, Linnong Wang, Lixun Chen
OBJECTIVE: To introduce a new approach to simulatethe fitting process of rigid gas-permeable (RGP) contact lenses using 3D printing technology. METHODS: A hemispherical or parabolic 3D model was created using 3D Builder or Tinkercad software. The horizontal and vertical diameters and the hemispherical or ellipsoid height were adjusted to simulate different morphologies of the corneal anterior surface. After exporting the file in stereo lithography (STL) format, a solid model was printed using a 3D printer and was used to simulate RGP contact lens fitting...
October 15, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30337142/clinical-subtypes-of-dry-eye-in-youthful-clinical-sample-in-ghana
#17
Kofi Asiedu, Selassie K Dzasimatu, Samuel Kyei
PURPOSE: To evaluate in a cohort of patients with dry eye disease (DED) the distribution of patients with asymptomatic and symptomatic dry eye involving aqueous deficient or the evaporative subtype of DED. METHODS: This was a clinic-based cross-sectional study of consecutive patients visiting the University of Cape Coast eye clinic for a comprehensive eye examination. Eligible participants completed the Ocular Surface Disease Index (OSDI), ocular surface staining and tear break up time...
October 15, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30337141/the-role-of-corneo-scleral-junction-in-soft-contact-lens-fitting-case-report-on-nanophthalmos
#18
Preetam Kumar, Haile Woretaw
BACKGROUND: Nanophthalmos is rare developmental ocular condition characterized by a small eye with short axial length, high hyperopia and high lens to eye volume ratio due to arrested development of eye ball as a result of scleral inelasticity. OBSERVATIONS: A 33 year old woman who presented with a complaint of blurring of distance and near vision in both eyes since childhood came to LV Prasad Eye Institute on July 2017. Best corrected visual acuity was 20/60 using soft contact lens +23...
October 15, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30337140/identification-of-virulence-factors-in-contact-lens-associated-bacteria-a-physiological-approach
#19
Iram Liaqat, Qurat-Ul-Ain Saleem, Hafiz Muhammad Tahir, Muhammad Arshad, Najma Arshad
PURPOSE: Wearing contact lens requires awareness about possible contaminants, the causative agents of multiple complications. The present study focused on identification of potential pathogens and presence of virulence associated markers in contact lens associated bacteria. METHODS: Bacterial contaminants were isolated from contact lenses or cleaning solutions collected from University students. Isolates were identified using conventional methods followed by 16S rRNA gene sequencing and screened for the presence of virulence factors which included capsular presence, adhesion, serum resistance, iron chelation, haemagglutination and hemolysis...
October 15, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/30266562/case-series-extended-wear-of-rigid-gas-permeable-scleral-contact-lenses-for-the-treatment-of-persistent-corneal-epithelial-defects
#20
Mahmood Khan, Keith Manuel, Brooke Vegas, Shikha Yadav, Roxana Hemmati, Zaina Al-Mohtaseb
OBJECTIVES: To report the successful treatment of persistent corneal epithelial defects that failed to respond to alternative treatment methods using extended wear of three different rigid gas-permeable scleral lenses. METHODS: Eight eyes of eight patients with persistent corneal epithelial defects were treated with Blanchard Onefit 2.0 Scleral lens, BostonSight Scleral lens, and BostonSight PROSE device and were observed for defect resolution and improvement in best-corrected visual acuity over the duration of treatment...
September 25, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
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