journal
MENU ▼
Read by QxMD icon Read
search

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

journal
https://www.readbyqxmd.com/read/29752212/scleral-lenses-history-future
#1
EDITORIAL
Eef van der Worp, Melissa Barnett, Lynette Johns
No abstract text is available yet for this article.
May 8, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29748095/corneal-topography-with-an-aberrometry-topography-system
#2
Michael Mülhaupt, Sven Dietzko, James Wolffsohn, Stefan Bandlitz
PURPOSE: To investigate the agreement between the central corneal radii and corneal eccentricity measurements generated by the new Wave Analyzer 700 Medica (WAV) compared to the Keratograph 4 (KER) and to test the repeatability of the instruments. METHODS: 20 subjects (10 male, mean age 29.1 years, range 21-50 years) were recruited from the students and staff of the Cologne School of Optometry. Central corneal radii for the flat (rc/fl ) and steep (rc/st ) meridian as well as corneal eccentricity for the nasal (enas ), temporal (etemp ), inferior (einf ) and superior (esup ) directions were measured using WAV and KER by one examiner in a randomized order...
May 7, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29739665/clinical-comparison-of-optimum-and-large-diameter-soft-contact-lenses
#3
James Wolffsohn, Lee Hall, Graeme Young
PURPOSE: To compare the clinical performance of large diameter lenses with optimally fit lenses in the same material and monocurve back surface design. METHOD: In a four-visit, randomised, bilateral, crossover, study, 25 myopic subjects wore optimum diameter lenses (control) and large diameter lenses (test) in random succession for 1 week each. Both study lenses were made of methafilcon A and of an identical design. Trial fittings with Frequency 55 (Coopervision) lenses modified with a design algorithm were used to determine the appropriate custom-made study lenses...
May 5, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29728290/posterior-cornea-and-thickness-changes-after-scleral-lens-wear-in-keratoconus-patients
#4
Maria Serramito, Carlos Carpena-Torres, Jesús Carballo, David Piñero, Michael Lipson, Gonzalo Carracedo
PURPOSE: To evaluate the changes in the corneal thickness, anterior chamber depth and posterior corneal curvature and aberrations after scleral lens wear in keratoconus patients with and without intrastromal corneal ring segments (ICRS). METHODS: Twenty-six keratoconus subjects (36.95 ± 8.95 years) were evaluated after 8 h of scleral lens wear. The subjects were divided into two groups: those with ICRS (ICRS group) and without ICRS (KC group). The study variables evaluated before and immediately after scleral lens wear included corneal thickness evaluated in different quadrants, posterior corneal curvature at 2, 4, 6 and 8 mm of corneal diameter, posterior corneal aberrations for 4, 6 and 8 mm of pupil size and anterior chamber depth...
May 1, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29720354/surface-versus-bulk-activity-of-lysozyme-deposited-on-hydrogel-contact-lens-materials-in-vitro
#5
Negar Babaei Omali, Lakshman N Subbaraman, Miriam Heynen, Alan Ng, Chantal Coles-Brennan, Zohra Fadli, Lyndon Jones
PURPOSE: To determine and compare the levels of surface versus bulk active lysozyme deposited on several commercially available hydrogel contact lens materials. METHODS: Hydrogel contact lens materials [polymacon, omafilcon A, nelfilcon A, nesofilcon A, ocufilcon and etafilcon A with polyvinylpyrrolidone (PVP)] were incubated in an artificial tear solution for 16 h. Total activity was determined using a standard turbidity assay. The surface activity of the deposited lysozyme was determined using a modified turbidity assay...
April 30, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29666023/the-influence-of-lens-care-systems-on-eyelid-tissue-changes-during-silicone-hydrogel-contact-lens-wear
#6
Michel Guillon, Cécile Maissa, Stéphanie Wong, Trisha Patel, Renée Garofalo
PURPOSE: To compare the effects of a hydrogen peroxide (H2 O2 )-based lens care solution and a polyhexamethylene biguanide (PHMB) multi-purpose solution on the eyelids when used with silicone hydrogel (SiHy) contact lenses. METHODS: A total of 74 symptomatic wearers of ACUVUE® OASYS® (senofilcon A; n = 39) or PureVision® (balafilcon A; n = 35) contact lenses were randomised 1:1 to either CLEAR CARE® Cleaning & Disinfecting Solution or renu® fresh™ multi-purpose solution (n = 37 each)...
April 14, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29656886/oscillatory-squeeze-film-analysis-of-soft-contact-lenses
#7
Éanna Mac Donnchadha, Cristina Leal, Harry Esmonde
The complex modulus of a soft contact lens affects the optical performance, fitting, on-eye movement, wettability, physiological impact and overall comfort of the lens. However, despite acknowledgement that the mechanical behaviour of contact lenses is time-dependent, the rheological characteristics of contact lenses remain under-defined. While existing studies have focussed on elasticity to describe lens behaviour, this paper proposes using oscillatory squeeze film analysis to evaluate the complex modulus...
April 13, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29653889/novel-technique-for-fabrication-of-pneumatic-ocular-prosthesis
#8
LETTER
Adrita Roy Chowdhury, Saumyendra V Singh, Pooran Chand, Himanshi Aggarwal, Deeksha Arya
No abstract text is available yet for this article.
April 10, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29625888/tear-film-secretion-and-stability-in-welders
#9
Amir Asharlous, Hassan Hashemi, Abbasali Yekta, Hadi Ostadimoghaddam, Hamid Gharaee, Mehdi Khabazkhoob
PURPOSE: Welders are prone to ocular injuries and ocular surface problems due to exposure to ultraviolet light. The aim of this study was to evaluate the tear film comprehensively and assess objective and subjective indices of dry eye in welders. METHODS: In this historical cohort, welders with at least 5 years of experience were compared with controls. A complete evaluation of ocular health was done for all participants. The Schirmer test (invasive and non-invasive) and Invasive Tear Break-Up Time (ITBUT) were applied for objective evaluation and the Ocular Surface Disease Index (OSDI) was used for subjective assessment of the tear film status...
April 3, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29580956/the-use-of-miltefosine-in-the-management-of-refractory-acanthamoeba-keratitis
#10
Shokufeh Tavassoli, Miranda Buckle, Derek Tole, Peter Chiodini, Kieren Darcy
Acanthamoeba keratitis (AK) is a sight threatening infection most commonly affecting contact lens wearers. The authors report a case of intractable A.polyphaga and A.castellanii, with extensive intraocular spread, managed using oral miltefosine. A 59-year old male contact lens wearer was referred to the tertiary corneal service at Bristol Eye Hospital. Vision was hand movements on the left and 6/6 on the right. Clinical examination was consistent with left AK (confirmed by corneal scrape). Management included biguanide (polyhexamethylene biguanide (PHMB) 0...
March 23, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29580955/intraepithelial-corneal-haemorrhage-in-a-rigid-contact-lens-wearer
#11
James Simpson, Stephen J Vincent
Intracorneal haemorrhage is a rare complication of modern contact lens wear. While a limited number of reports have described intracorneal haemorrhages (typically stromal) associated with the extended wear of soft contact lenses with limited oxygen permeability for the correction of aphakia, this case report documents the management and resolution of a significant intraepithelial corneal haemorrhage associated with long-term rigid contact lens wear for keratoconus and high myopia.
March 23, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29576438/light-disturbance-with-multifocal-contact-lens-and-monovision-for-presbyopia
#12
Paulo Fernandes, Ana Amorim-de-Sousa, António Queirós, Santiago Escandón-Garcia, Colm McAlinden, José Manuel González-Méijome
Dysphotopsia affects a significant number of patients, particularly after visual correction with multifocal optical designs. PURPOSE: Evaluate light distortion (LD) in two modalities of contact lens (CL) wear: multifocal (MF) and monofocal (MV). METHODS: This was a randomized, double-masked, crossover study involving 20 presbyopic patients. Patients were randomized first into either MF or MV for 15 days of use with a 1 week wash-out period between each lens type...
March 22, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29573998/painless-bilateral-bullous-keratopathy
#13
Stephen J Vincent
Bullous keratopathy is a pathological corneal condition that arises due to irreversible oedema associated with endothelial cell loss or dysfunction. Symptoms may vary from mild (transient blurred vision and increased glare from epithelial oedema) to severe (an acute and significant loss of vision associated with frank endothelial decompensation, and pain due to ruptured epithelial bullae). Possible treatments to restore vision and minimise pain include topical hypertonic agents, bandage contact lenses, superficial anterior corneal surgical procedures or penetrating full thickness or endothelial keratoplasty...
March 21, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29555408/scleral-contact-lens-thickness-profiles-the-relationship-between-average-and-centre-lens-thickness
#14
Stephen J Vincent, David Alonso-Caneiro, Henry Kricancic, Michael J Collins
PURPOSE: To develop a methodology to reliably determine the thickness profile of scleral contact lenses and examine the relationship between the centre and average lens thickness for a range of lens designs and back vertex powers. METHODS: High-resolution images of 37 scleral trial lenses (Epicon LC, Rose K2 XL and ICD 16.5) were captured using an optical coherence tomographer, and their thickness profiles were generated after correcting for known measurement artefacts...
March 16, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29548929/the-time-course-and-nature-of-corneal-oedema-during-sealed-miniscleral-contact-lens-wear
#15
Stephen J Vincent, David Alonso-Caneiro, Michael J Collins
PURPOSE: To examine the magnitude and time course of central epithelial, stromal and total corneal thickness changes during sealed miniscleral contact lens wear and the influence of initial central corneal clearance upon these thickness changes. METHODS: High-resolution OCT images were captured over an 8 h period of miniscleral contact lens wear (using a rotationally symmetric 16.5 mm diameter lens) in 15 young, healthy participants with normal corneae. Corneal thickness data were derived from OCT images using semi-automated image processing techniques over the central 4 mm...
March 13, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29496328/trends-in-contact-prescribing-in-japan-2003-2016
#16
Motohiro Itoi, Motozumi Itoi, Nathan Efron, Philip Morgan, Craig Woods
PURPOSE: To review contact lens prescribing trends in Japan between 2003 and 2016. METHODS: An annual survey of contact lens prescribing trends was conducted each year between 2003 and 2016. Japanese ophthalmologists were asked to provide information relating to ten consecutive contact lens fittings between January and March every year. RESULTS: Over the 14 years of the annual survey, data from a total of 64,122 contact lens fits were returned by ophthalmologists...
February 26, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29496327/the-influence-of-limbal-and-scleral-shape-on-scleral-lens-design
#17
REVIEW
Daddi Fadel
PURPOSE: To summarize the research findings on the ocular surface profile, to provide a definition and a classification of the corneoscleral shape, and to offer guidelines in selecting scleral lens design. METHODS: The definition of rotational symmetry and rotational asymmetry was inquired and PubMed searches were conducted. RESULTS: The better understanding of the scleral contact lens comportment on the eye and the introduction of new diagnostic instruments to measure the anterior ocular surface have led to improve comprehension of corneoscleral contour formulating new scleral lens designs...
February 26, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29397322/the-rigid-lens-renaissance-a-surge-in-sclerals
#18
EDITORIAL
Stephen J Vincent
No abstract text is available yet for this article.
April 2018: 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
#19
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.
April 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29054722/the-eyelids-and-tear-film-in-contact-lens-discomfort
#20
Jaya Sowjanya Siddireddy, Ajay Kumar Vijay, Jacqueline Tan, Mark Willcox
PURPOSE: To investigate characteristics of the eyelid margins, meibomian glands and the tear film of contact lens wearers, and to determine whether these characteristics were related to symptoms of contact lens discomfort. METHODS: A cross sectional study was performed on thirty existing daily wear soft contact lens wearers (6 male; 24 female) with median age of 23 years (range 18-41). Eyelid signs and tear film characteristics were evaluated during a single visit and subjects completed the contact lens and dry eye questionnaire (CLDEQ-8) to evaluate ocular discomfort...
April 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
journal
journal
32839
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"