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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/29329901/effects-of-orthokeratology-on-axial-length-growth-in-myopic-anisometropes
#1
Zhi Chen, Jiaqi Zhou, Xiaomei Qu, Xingtao Zhou, Feng Xue
PURPOSE: To investigate the effect of orthokeratology (ortho-k) lens wear on axial length (AL) growth in juvenile myopic anisometropes. METHODS: This retrospective study consisted of two parts. In Part One, 25 anisometropic participants (mean age, 11.2 ± 1.9 years; 11 females and 14 males) were fitted with ortho-k lenses in the more myopic eye only, and the rate of AL growth was compared between the ortho-k lens wearing eye and the untreated contralateral eye over an average period of 23...
January 10, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29306628/addenda-to-paper-entitled-an-appraisal-of-the-optics-of-the-hydrodiascope
#2
LETTER
Richard M Pearson
No abstract text is available yet for this article.
January 3, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29277480/tear-evaporation-rates-what-does-the-literature-tell-us
#3
Stephanie Wong, Paul J Murphy, Lyndon Jones
PURPOSE: A previous literature review reported tear evaporation rates (TERs) from studies conducted on rabbits and humans between 1941 and 2003. Closer examination of the presented data revealed inaccuracies in the reporting of some values. This paper presents updated tables of TERs using values from the original papers cited in the review, in addition to incorporating new studies published between 2003 and 2016. METHODS: A copy of each paper cited in the literature review was obtained and checked against the evaporation rate reported in the review...
December 22, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29273391/acanthamoeba-in-the-eye-can-the-parasite-hide-even-more-latest-developments-on-the-disease
#4
REVIEW
M M Juárez, L I Tártara, A G Cid, J P Real, J M Bermúdez, V B Rajal, S D Palma
Acanthamoeba spp. is a free living protozoan in the environment, but can cause serious diseases. Acanthamoeba keratitis (AK), a severe and painful eye infection, must be treated as soon as possible to prevent ulceration of the cornea, loss of visual acuity, and eventually blindness or enucleation. Although the disease affects principally contact lens (CLs) wearers, it is recognized nowadays as a cause of keratitis also in non-CLs wearers. Although the number of infections caused by these amoebae is low, AK is an emerging disease presenting an extended number of cases each year worldwide mostly due to the increasing use of CLs, but also to better diagnostic methods and awareness...
December 19, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29258836/fitting-success-for-three-multifocal-designs-multicentre-randomised-trial
#5
Emilia Novillo-Díaz, César Villa-Collar, Mónica Narváez-Peña, José Luis R Martín
PURPOSE: To determine if the discontinuation of commercially-available simultaneous vision Multifocal Soft Contact Lenses is independent from the multifocal design. To determine causes for discontinuation and psychosocial factors involved. METHODS: Multicentre single-blinded randomised controlled trial with external blinded evaluation for a three months follow-up period for three intervention groups. 150 single-vision soft wearers were randomly assigned a spherical near centred lens (S-CN), distance centred lens (CD) or aspherical near centred lens (A-CN)...
December 16, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29254844/letter-to-the-editor-clarifying-clay-study-group-and-published-research-findings
#6
LETTER
Heidi Wagner, Kathryn Richdale, Dawn Y Lam, Beth T Kinoshita, G Lynn Mitchell, Luigina Sorbara, Aaron B Zimmerman, Robin L Chalmers
No abstract text is available yet for this article.
December 15, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29248316/cytotoxic-and-inflammatory-effects-of-contact-lens-solutions-on-human-corneal-epithelial-cells-in-vitro
#7
Sarah Oh, David J McCanna, Lakshman N Subbaraman, Lyndon W Jones
PURPOSE: To ascertain the effect that four contact lens (CL) multipurpose solutions (MPS) have on the viability and release of pro-inflammatory cytokines from human corneal epithelial cells (HCEC). METHODS: HCEC were exposed to four different MPS at various concentrations for 18 hours. The cells were also exposed to phosphate buffer, borate buffer, and PHMB. The cell viability was evaluated using the alamarBlue assay. The release of pro-inflammatory cytokines was measured using a Multiplex electrochemiluminescent assay...
December 13, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29248315/on-eye-breakage-and-recovery-of-mini-scleral-contact-lens-without-compromise-for-the-ocular-surface
#8
Rute J Macedo-de-Araújo, Eef van der Worp, José M González-Méijome
PURPOSE: To report the on-eye breakage of a mini-scleral contact lens in a healthy cornea after being hit by a speeding object, without causing any severe corneal damage. CASE REPORT: A 24-year-old Caucasian male involved in a clinical study reported the in situ breakage of a mini-scleral contact lens during motorbike maintenance. The patient reported eye redness and irritation that significantly decreased after all the pieces of the lens were recovered from the eye...
December 13, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29248314/the-effect-of-rebamipide-ophthalmic-suspension-on-ocular-surface-mucins-in-soft-contact-lens-wearers
#9
Chika Shigeyasu, Masakazu Yamada, Yoko Akune, Masaki Fukui
PURPOSE: To evaluate the changes in ocular surface mucins with 2%rebamipide ophthalmic suspension treatment in soft contact lens (SCL) wearers. Rebamipide suspension is a mucin secretagogue approved for the treatment of dry eye syndrome in Japan. In this study, the fluorescence intensity of wheat germ agglutinin conjugate of fluorescein (F-WGA) was used as a marker of membrane-associated mucins, and sialic acid concentration in tear fluids as a marker of secreted mucins. METHODS: Thirty-two eyes of 16 SCL wearers with discomfort were treated with rebamipide suspension at a dose of one drop in each eye four times daily for two weeks...
December 13, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29241942/an-imaging-based-analysis-of-lipid-deposits-on-contact-lens-surfaces
#10
Shyam Panthi, Jason J Nichols
PURPOSE: To evaluate whether LipidTOX could stain lipid deposits on contact lens (CL) surfaces and compare lipid deposition patterns on various CL surfaces using an imaging method. METHODS: Ten CLs each of six silicone hydrogel materials and one hydrogel material were incubated in cholesteryl oleate solution (5.60mg/ml) for 12hours. The CLs were then separately stained with Oil Red O and LipidTOX and imaged under a fluorescence microscope. Twenty worn senofilcon A CLs from both eyes of ten participants were also stained similarly...
December 11, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29229207/about-quick-look%C3%A2
#11
LETTER
Onur Gökmen
No abstract text is available yet for this article.
December 8, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29233457/antimicrobial-efficacy-of-a-novel-povidone-iodine-contact-lens-disinfection-system
#12
Katsuhide Yamasaki, Fumio Saito, Ritsue Ota, Simon Kilvington
PURPOSE: Contact lens (CL) wear is a risk factor for the acquisition of microbial keratitis. Accordingly, compliance to manufacturers' recommended hygiene and disinfection procedures are vital to safe (CL) use. In this study we evaluated a novel povidone-iodine (PI) (CL) disinfection system (cleadew, Ophtecs Corporation, Japan) against a range of bacterial, fungal and Acanthamoeba. METHODS: Antimicrobial assays were conducted according to ISO 14729 using the recommended strains of bacteria and fungi, with and without the presence of organic soil...
December 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29233456/corneal-conjunctival-effects-and-blood-flow-changes-related-to-silicone-hydrogel-lens-wear-and-their-correlations-with-end-of-day-comfort
#13
Luigina Sorbara, Jyotsna Maram, Trefford Simpson, Natalie Hutchings
PURPOSE: First, to examine how wearing high and low modulus lenses with two different base curves affected lens fit, and the corneal tissue and bulbar conjunctival vascular tissue (bulbar redness and blood velocity). Secondly, to quantify the associations between these baseline and outcome variables and the third purpose was to correlate these variables with end of day comfort. METHODS: Thirty participants wore higher (PureVision (PV) 8.3, 8.6) and lower (Acuvue Advance (AA) 8...
December 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29223650/dry-eye-following-cataract-surgery-the-effect-of-light-exposure-using-an-in-vitro-model
#14
Tugce Ipek, Mariana Petronela Hanga, Andreas Hartwig, James Wolffsohn, Clare O'Donnell
PURPOSE: Cataract surgery can lead to the temporary development or worsening of dry eye symptoms. Contributing factors may include corneal incisions, agents used before, during or after surgery, light from the operating microscope, disruption of ocular surface tissues and inflammatory processes. The purpose of this study was to observe the effect of light exposure on conjunctival fibroblasts in order to determine whether light has an effect on wound healing closure, assuming that operating microscopes might have an effect on the ocular surface...
December 7, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29223651/effects-of-the-rigid-gas-permeable-contact-lense-use-on-tear-and-ocular-surface-among-keratoconus-patients
#15
Cansu Yuksel Elgin, Guzin Iskeleli, Ovgu Aydin
PURPOSE: To investigate changes in tear and ocular surface of patients with keratoconus using rigid gas permeable contact lenses (RGPCL) and compare them against keratoconus patients who were not using lenses as well as a control group of healthy subjects. METHODS: 24 keratoconus patients using RGPCL (Group 1) 22 patients who were not using lenses (Group 3) and 21 healthy subjects (Group 3) were included in the study. Subjective complaints about the subjects' eyes have been investigated using the ocular-surface disease index (OSDI)...
December 6, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29223649/novel-liposome-based-and-in-situ-gelling-artificial-tear-formulation-for-dry-eye-disease-treatment
#16
Duygu Acar, Irene Teresa Molina-Martínez, Miguel Gómez-Ballesteros, Manuel Guzmán-Navarro, José Manuel Benítez-Del-Castillo, Rocío Herrero-Vanrell
PURPOSE: Artificial tears are widely used in the treatment of dry eye disease, although current formulations do not closely resemble natural tears. The purpose of this study was the design and characterization of a novel in situ gelling artificial tear formulation, containing both lipid and aqueous components, in order to resemble natural tears and replenish the tear film. METHODS: Liposomes, containing phosphatidylcholine, cholesterol, vitamins A and E, were prepared by the thin-film hydration method...
December 6, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29221710/acanthamoeba-keratitis-in-patients-wearing-scleral-contact-lenses
#17
Matheus Porto Sticca, Linda C Carrijo-Carvalho, Isa M B Silva, Luiz A Vieira, Luciene B Souza, Rubens Belfort Junior, Fábio Ramos S Carvalho, Denise Freitas
PURPOSE: To report a series of cases of Acanthamoeba keratitis (AK) in scleral lens wearers with keratoconus to determine whether this type of contact lens presents a greater risk for development of infection. METHODS: This study reports three patients who wore scleral contact lenses to correct keratoconus and developed AK. The diagnoses of AK were established based on cultures of the cornea, scleral contact lenses, and contact lens paraphernalia. This study investigated the risk factors for infections...
December 5, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29221709/the-use-of-contact-lenses-among-university-students-in-chengdu-knowledge-and-practice-of-contact-lens-wearers
#18
Qiurong Zhu, Bi Yang, Nan Deng, Yifan Li, Tingwei Wang, Huang Qi, Longqian Liu
PURPOSE: To assess the prevalence and general knowledge of contact lens wearers among college students in Chengdu, a metroplolitan of Chinaand find out the routine habits of use and hygienic conditions when wearing contact lenses. METHOD: The questionnaire was distributed to 1,600 ametropic participants who were from 8 different universities. Data about demographics, general contact lens handling habits, personal attitudes, hygiene behaviors and eye health conditions were collected...
December 5, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29221708/daily-versus-monthly-disposable-contact-lens-which-is-better-for-ocular-surface-physiology-and-comfort
#19
Kishor Sapkota, Sandra Franco, Madalena Lira
PURPOSE: To investigate the effect of soft contact lenses (SCL) wearing modality and lens materials on the changes in conjunctival bulbar and limbal redness and conjunctival and corneal staining after two months of SCL wear. Comfort level was also analyzed. METHODS: In this longitudinal clinical trial, forty-seven neophyte myopic subjects were fitted with a monthly disposable lens (lotrafilcon-B or comfilcon-A or balafilcon-A) in one eye and a daily disposable lens (nelfilcon-A or stenofilcon-A or nesofilcon-A) in the other eye, randomly selected...
December 5, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29217456/goblet-cell-density-estimate-differences-in-impression-cytology-samples-varies-with-different-magnification-of-images
#20
Michael J Doughty
PURPOSE: To assess the impact of using different microscope magnifications for the goblet cell density (GCD) estimates from conjunctival impression cytology (CIC) samples from healthy individuals METHODS: In a prospective study, CIC specimens were collected from the superior bulbar conjunctiva (12 o'clock, 5mm from limbus) of 20 adult subjects (average age 22 years) onto Millicell-CM membranes and Giemsa stained. A region from each CIC filter containing reasonably high numbers of goblet cells was imaged by light microscopy at a final magnification of 400X and then the same region assessed at 200X and then 100X...
December 4, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
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