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The article discusses the various manufacturing techniques used in the production of modern contact lenses. Topics discussed include the verifiable accuracy and reproducibility of contact lenses these days has led most of us take for granted the precision with which a whole host of very specific designs are generated; and usually at high volumes, from a range of very different materials and with excellent repeatability.

The article highlights a wide range of visual intensities humans are exposed to over the course of an average day; the impact light has on visual performance, and how spectral filtering has been shown to improve functional vision in a number of situations relatable to real-world experience. It mentions that Acuvue Oasys with Transitions is a first-of-its-kind9 intelligent light-responsive contact lens.

The article evaluate considerations on using orthokeratology contact lenses for myopia control during the Covid-19 pandemic, challenges to the profession as the ongoing Covid-19 pandemic has seen normal clinical practice greatly disrupted. It informs about the use of contact lenses has faced particular scrutiny and some media reports have advocated the cessation of contact lens use despite the absence of clear evidence for an increased risk of Covid-19 infection.

The article describes author's experience as an eye care practitioner on the use of orthokeratology in myopia management. It discusses a case involving anterior eye management, rather than my more typical focus upon posterior pathology; use of a centre distance multifocal contact lens like the CooperVision Biofinity multifocal lens as the annulus for reading creates a hyperopic defocus which has been shown in some studies to reduce the rate of progression of myopia.

The article offers information related to orthokeratology. Orthokeratology refers to the reduction, modification or elimination of refractive error by the programmed application of contact lenses. The advent of computer numerical controlled (CNC) high precision lathes, reverse geometry contact lens designs, corneal topographers and super high Dk rigid gas-permeable lenses has totally revolutionised this field.

The article presents information on interaction of contact lens solution with contact lens materials. It focuses on the importance of a considered approach in choosing lens care solution. It is suggested that all practitioners should think carefully about choosing lens care solution for any given lens.

The article presents the views of professor Noel Brennan on how the recent research can influence the choice of contact lens (CL) material and modality. According to Brennan, oxygen delivery per se is important but it is not as impactful as it was thought be. Brennan said that comfort and convenience are priorities of patients.

The article discusses the use of VIPOK lenses to correct high myopia. The VIPOK system is a semi black box system consisting of a fitting set to refine the fit after which the correct lens is ordered. A 53-year-old male patient, who is a racket player, had a variable vision. In this case, an appropriate lens design was used to manage high degrees of myopia.

The article provides an overview of a comparative evaluation of the performance between the latest silicone hydrogel lenses, Biofinity, with lenses of older materials and designs. The study demonstrated that Biofinity performed well with existing contact lens wearers for daily wear, and there were significant differences in performance between the two lenses, favoring Biofinity, in particular for comfort, symptoms and ocular physiology.

This article analyzes tha factors to consider when upgrading contact lens wearer to silicone hydrogel (SiH) lenses. The trend towards increased prescribing of SiH lens types in Great Britain has been well documented over recent years. The manufacturers of the first generation SiH can be attributed to the drive towards enhanced ocular health and oxygen performance. Extended wear (EW) was predicted to be the modality of the future, described as an opportunity for semi-permanent vision correction; an option instead of refractive surgery. Six years on from the introduction of SiH lenses, fitting strategies have changed. Historically, using first-generation materials marketed for EW, there was an opportunity to upgrade existing daily wearers to a more oxygen-permeable material but also to offer increased convenience.

Focuses on the Corneal Refractive Therapy (CRT) lens introduced by Paragon Vision Science Corp. in the U.S. in 2002. Pre-treatment manifestation refraction sphere powers of the CRT lens; Primary zones of the lens; Results of a three-night trial of the lens; Correlation of the power change with the treatment zone.

Presents information on the various components of the follow-up examination and management of complications of orthokeratology. Importance of patient education in orthokeratology; Types of questions asked during routine aftercare; Reasons behind the importance of corneal topography measurement; Details on sodium florescein staining with reverse geometry lenses.

Part II. Presents tips on selecting orthokeratology patients and describes the procedure for fitting trial contact lens. Lid position and tension; Importance of the direction and degree of pre-existing astigmatism; Initial corneal topography; Fluorescein pattern assessment.

Part I. Provides information on orthokeratology. History of orthokeratology; Principles underlying the fitting of reverse geometry lens; Description of contact lens design.

The article offers review on several contact lenses which includes EyeDream by No7 Contact Lenses, Emerald & Topaz from IGO and Nocturnal Lenses from Scotlens.

The article discusses toric soft lens fitting and the evaluation of these lenses at three practices in Great Britain. According to industry data, only about one in five soft contact lens fits in Britain in 2011 was a toric lens fit. Keith Tempany, a contact lens optician, says successful toric lens fitting is important for patient satisfaction and the practice. Researchers at the University of Manchester developed a novel chart for assessing near vision in soft toric contact lens wearers.

The article presents information on Opti-Free EverMoist Multi-Purpose Disinfecting Solution, a new multipurpose disinfecting solution. The solution incorporates a wetting agent, HydraGlyde Moisture Matrix (EOBO-41). It retains moisture on lenses, provides comfort and prevents lipid and protein deposits.

The article presents the author's views on the decreasing popularity of the rigid contact lenses. It is mentioned that rigid lenses are uncomfortable to use in initial stages this makes patients to switch to soft lenses. Also, rigid lenses can lead to various intractable corneal and lid pathologies including blepharoptosis. Additionally, patients' lack of interest in orthokeratology to correct myopia is a contributing factor in the failure of rigid contact lenses.

The article reports that despite increasing options of buying spectacles and contact lenses online, the majority of the public still attend for an eye examination before purchasing optical goods. Before buying spectacles, patients can try them on, feel the weight of the frame, the color, consider the size, look at any markings, the finish, logos etc and take a view about quality.

The article offers information on the developments in orthokeratology research discussed during the European Ortho Keratology (Ortho K) Symposium held in Europe in 2006. A literature review by professor Patrick Caroline on myopia control noted that studies have failed to provide support for multifocal spectacles as a method for myopia control in children. Presenters Caroline Christie and Ron Beerten focused on upgrading existing wearers of modern Ortho K lenses.

Summarizes topics discussed at the 2005 Global Orthokeratology Symposium held in Chicago, Illinois. Results of the contact lens and myopia progression study presented by Jeff Walline; Review of the long-term orthokeratology research in children by Pauline Cho; Safety of orthokeratology discussed by Helen Swarbrick.

Presents information on orthokeratology (ortho k) in Great Britain. Definition; Reasons behind the commissioning of a market research by No 7 Contact Lens Laboratory in 2003; Key misconceptions about ortho k; Discussion on ortho k.

Presents a study that described an independent evaluation of the Astrocon Multifocal rigid gas-permeable contact lens from Ciba Vision. Lens parameters used in Comfort grade of the lens; Effectiveness of the lens in correcting presbyopic rigid lens wearers.

The article presents the case studies of a 25-year-old male keratoconic patient. The patient was presented with six-month contact lens after complaining of increasing intolerance to his RGP lens worn in the right eye. Medical screening of the patient's right eye revealed moderate bulbar conjunctival hyperaemia and staining, moderate corneal apical staining, stromal thinning and mild oedema.

Reports on topics discussed at the British Contact Lens Association (BCLA) Pioneers' Conference and Lecture held in London, England in 2005. Discussion of the historical development of corneal topographers by Shehzad Naroo, editor in chief of the BCLA journal "Contact Lens & Anterior Eye"; Information on the Reshaping the Future? presentation on orthokeratology by Dutch optometrist Eef van der Worp; Advice provided by BCLA council members Nigel Burnett Hodd and ophthalmologist Sarah Janikoun.

The article profiles Professor Nathan Efron. It provides an overview on Efron's career in university administration. Efron offers his views on a report on optometry of the Optical Services Audit Committee. He comments on the difference between optometry in Australia and Great Britain. He also shares his opinion on orthokeratology and rigid gas permeable contact lenses.

This article focuses on the method of vision correction called orthokeratology. A seminar on the technique was hosted by No 7 Laboratory in the U.S. in 2005. The technology is said to be beneficial to practitioners who look for ways to build relationships with their patients. Orthokeratology reportedly plays a significant role in slowing the onset of myopia in young people.

Presents the results of the survey "Eurolens Research," which focused on the type of contact lenses being prescribed by opticians and optometrists in Great Britain conducted between January and March 2005. Increase in use of soft lenses for refits; Trends in soft lens designs; Factors that contributed to the increased use of silicone hydrogels in soft lens prescribed for daily wear; Percentage of commonly prescribed orthokeratology fits of rigid lens form.

Focuses on the topics discussed at the 2004 Global Orthokeratology Symposium held in Toronto, Ontario. Safety of orthokeratology discussed by Jonathan Jacobson of Polymer Technology; Corneal response to overnight wear of contact lenses according to Helen Swarbick; Effect of the XC lens from Vipoc as according to Hsiao-Ching Tung.

Summarizes research on contact lenses presented at the Association for Research in Vision and Ophthalmology conference which took place in 2004. Contact lens material tested of its capacity to inhibit bacterial binding; Technique developed to measure the advancing dynamic contact angle for unworn and patient-worn lenses; Safety and effectiveness of orthokeratology.

The article focuses on the study headlined, "night time contact lenses stop children becoming short-sighted," published in the "Daily Telegraph" newspaper which shows the benefits of orthokeratology (ortho-k) device in slowing myopia in children. Professor Pauline Cho, who is carrying out trials at The Hong Kong Polytechnic University, says that ortho-k had been effective in slowing down the progression of myopia in children. The study was conducted to 78 children aging seven to 10 years old.

The article discusses aftercare and troubleshooting to resolve any reported concerns when a patient returns to the optometry practice with a problem after the fitting of multifocal lenses. It offers several tips in this regard including the initial aftercare consultation to take as detailed a history as possible; and asking the patient to score subjectively how well they undertake the tasks that they perform daily, such as driving, digital screen use, reading and so on.

The article reports that a marginally positive measure of +1 has been achieved by the GfK Custom Research LLC' Consumer Confidence Index measure of economic confidence among British consumers in August 2014, reflecting a willingness among younger people to try contact lenses. It is noted that GfK's contact lens fittings panel tracked a total of just over 2.75 million GB contact lens fitting appointments over the year to the second quarter of 2014.

The article focuses on the views of practitioners from independent practice and regional chains regarding the prospects for cosmetic contact lenses in Great Britain, which was presented at a meeting held on September 24, 2014. Optometrist Priya Kunvarji comments that people have a colored lens in their mind when they think of a cosmetic lens. Optometrist Kiersty Selvey said that patients ask for colored lenses and not for cosmetic lenses and Optician Keith Tempany agreed with the same.

The article reports that Valeant Pharmaceuticals International Inc. has started a new manufacturing line in the U.S. for its Ultra range of contact lenses. It presents the views of Michael Pearson, Valeant chairman and chief executive officer, who says the firm's Rochester facility is a very important piece of strategy to rebuild its eye health products supplier Bausch+Lomb as one of the leading contact lens producers.

The article focuses on the 2014 British Contact Lens Association's (BCLA) special session, at which various sections of the Tear Film and Ocular Surface Society (TFOS) workshop presented their findings and recommendations. It is noted that Professor Brien Holden explained the various findings of research aimed at helping improve contact lens discomfort (CLD).

The article presents the author's views on children's wearing of contact lens. She comments that amblyopia, myopia and hypermetropia could be treated only in childhood, while the eye is still growing. She opines on some strict rules for prescribing children and young people with contact lenses. She comments that youngsters feel prefer wearing contact lenses while taking part in sports. .

The article focuses on the interactivity submissions from participants in the contact lens aftercare module C33270 published on September 6, 2013. It is noted that the trigger to deciding which frequency of aftercare was chosen were modality of wear and materials in many answers. It is stated that a feeling that a proprietor or a multiple wanted annual or biannual appointments was a worrying trend mentioned by a good number of respondents.

The article reports that Moorfields Eye Hospital has been prompted to run a campaign on contact lens wear compliance by a sharp rise in cases of Acanthamoeba keratitis infections. Comments of Moorfields consultant Professor John Dart, regarding the outbreak of infection are presented. It is stated that risk factors for bacterial contact lens infections have been identified by Moorfields in collaboration with other learning institutions.

The article informs that the Malaysian Academy of Optometry held its first specialty and advanced contact lens seminar in Kuala Lumpar. It is noted that the seminar included lectures by Professor Pauline Cho on retardation of myopia in orthokeratology, workshops conducted by Stan Isaacs on myopic progression is multi-factorial and panel discussion on orthokeratology.

The article focuses on the study conducted by ophthalmologists from the Hong Kong Polytechnic University and Chinese University of Hong Kong (CUHK) on the safety of orthokeratology lenses. The study involves patients who were diagnosed with microbial keratitis and founds that 38 percent were related to orthokeratology used. Also mentioned was the recruitment of CUHK of 500 children to be involved with a large-scale study on the safety and efficacy of atropine to control myopia progression.

The article offers information on contact lens comfort. Topics discussed include the silicone hydrogel (SiH) lens, contact lens dropouts due to discomfort, and correlation of contact lens dehydration with water content for SiH and hydrogel contact lenses. It also mentions several studies concerning contact lenses and the symptoms of dryness and discomfort.

The article focuses on the Mintel report on the British optical goods market. The report says that the optical market is growing. The young population is boosting the contact lenses sale and on the senior side supporting the sale of more complex lenses and contact lenses. Vision Express is popular with younger buyers and in London.

The article focuses on various measurement techniques for oxygen transmissibility, oxygen flux, and corneal oxygen consumption The oxygen permeability of a lens is an inherent property of the lens material and is independent of the thickness of the lens. When calculating oxygen flux, the amount of oxygen that diffuses across the front surface of the cornea rises rapidly.

The article analyzes the trends patients to opt for silicone hydrogel daily disposable contact lenses. GfK data covering 2013 patient contact lens fittings shows changes in the levels of patients switching both from traditional hydrogel lenses to silicone hydrogel (SiH) lenses and also from reusables into daily lenses, both of which would tend to be an up-trade into a more expensive lens.

The article reports that researchers led by professor Zeev Zalevsky at the Faculty of Engineering at the Bar Ilan University in Israel have developed a prototype contact lens that could bring tactile vision to the visually impaired. The contact lens processes digital images from a camera which is either held in the hand or mounted on a pair of glasses. The lens can translate the digital images into tactile sensations which can be felt on the patient's cornea.

The article offers information on first annual meeting of International Academy of Orthokeratology (IAO) in Scottsdale, Arizona. It states that IOA was founded in April 2010 and mentions the joining of its three sections comprising Europe (EurOK), America (OAA) and Asia (IAOA) by the fourth section from Oceania, and a Latin American section is in the process of being formed.

The article presents a case study of an 11-year-old patient who was new to contact lenses, and the patient was tested for orthokeratology.

The article presents multiple-choice questions related to opticians, on topics including orthokeratology, astigmatism, and optical lenses.

The article presents questions and answers related to orthokeratology (ortho-k) including one about orthokeratology aftercare of patients, and another about an image showing the numerical engravings for indentification on the posterior surface of an ortho-K lens.