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The three pillars of myopia controle in practiceCliquez ici pour lire l'article

Myopia has become such an epidemic that the World Health Organization describes it as a key risk factor for ocular pathologies that can lead to blindness. As eyecare professionals and public health authorities respond to the crisis, this article offers a strategic approach with effective mechanisms for myopia control. This approach is based on three pillars of intervention: managing the environments of young people with myopia, managing their ametropia and peripheral defocus, and treating anomalies in binocular vision.

 

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Refraction : patients are sensitive to increments smaller than a quarter diopter !Cliquez ici pour lire l'article

Traditionally, in the ophthalmic lens industry optical corrections have been offered in increments no smaller than 0.25 D. But patients are often sensitive to smaller dioptric changes. A study carried out by Essilor International at its Singapore R&D centre with a representative sample of patients showed that 95% were sensitive to dioptric changes of under 0.25 D and that 44% could distinguish between changes of less than 0.125 D. This article presents the results of the study and demonstrates how a patient’s sensitivity can influence the precision of their refraction result. It also explores the outlook offered by the new high-precision subjective-refraction techniques and the ophthalmic lenses associated with them.

 

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A new approach to subjective refractionCliquez ici pour lire l'article

The advent of phoropters offering continuous power changes has made new subjective refraction techniques possible. One of them consists of determining a patient’s refraction using semi-automated algorithms that simultaneously change sphere, cylinder and axis in increments of variable dimension.* This article provides an overview of this technique’s general principles and shows how it can make both determining refraction easier and achieve more accurate results.

 

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Tuesday, 14 January 2020

Convergence insufficiency

Convergence insufficiencyCliquez ici pour lire l'article

One of the most common disorders of binocular vision encountered in the eye clinic is convergence insufficiency (CI). Population studies estimate upwards of 8% of the population suffer from convergence insufficiency, with the incidence increasing with age. Convergence insufficiency results with vergence ability at near is unable to match vergence demand. When this occurs, sensory fusion may be disrupted leading to intermittent diplopia, asthenopia, and fatigue. Clinicians should be able to quickly screen for abnormalities in convergence ability of a patient and provide a thorough evaluation of binocular ability when indicated. Many patients will respond well to vergence therapy, leading to both an increase in fusional vergence ability and a subsequent decrease in symptoms.

 

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Tuesday, 22 October 2019

The hidden cost of eye injuries

The hidden cost of eye injuriesCliquez ici pour lire l'article

Vision is intimately linked with our ability to navigate our environment and can strongly affect our mental, physical and economic well-being.

Losing one’s vision through an eye injury can lead to substantial long-term costs, and impact on an individual and their family & community. Eye injuries occur in a range of environments, including in the workplace, during sports and at home. Young working males are at the highest risk of eye injury. Up to 90% of eye injuries are preventable, with effective interventions including; education about the hazards, policies and training on the correct use of eye protection. Eye health professionals can play an important role in promoting and prescribing eye injury prevention strategies to help reduce this avoidable cause of vision loss.

 

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Raising the standards and profile of the optician profession across the globeCliquez ici pour lire l'article

In the changing landscape of the optical market, raising professional standards becomes a priority. The challenge is to be pro-active and not re-active. In this context, the International Opticians’ Association aims to bring opticians around the world together to consider the future and create plans for development of the profession. Considering new technologies and understanding emerging consumer behaviours are key factors in anticipating major changes that will affect the scope of practice. Elaine Grisdale explains in this interview what is the (new) role of the IOA and how to work more effectively to ensure the public has better outcomes when seeking first class eyecare and adapted eyewear. She also shares some thoughts on how to prevent independent opticians from becoming “dispensing dinosaurs” in what is the fastest moving period in optics – ever.

 

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Study satisfaction of people who wear progressive lenses conducted in optical storesCliquez ici pour lire l'article

Fitting progressive lenses on a person with presbyopia is a complex technical act that requires know-how, experience and psychology. The success of a fitting depends on a chain of actions that can each be a source of inaccuracy. In a large study conducted in France with Les Opticiens J. Torrilhon, we have evaluated the satisfaction levels of people wearing Varilux® progressive equipment. This article presents the various results that we have obtained and offers an analysis of them.

 

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A low vision magnification breakthroughCliquez ici pour lire l'article

For people suffering from low vision today, it often takes tenacity and perseverance to find an optical solution that allows them to optimize their remaining sight. Meg Zatorski knows this only too well. Afflicted with Stargardt disease (a common form of inherited juvenile macular degeneration), she spent a decade trying to obtain powerful enough high plus lenses to enable her to regain the ability to read. Essilor’s Stanislas Poussin and Anne-Catherine Scherlen recount how her challenge was met and what needs to be done so others like her can benefit from a solution that meets their visual needs.

 

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