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Vision and road safety : Putting the brakes on a global public health threatCliquez ici pour lire l'article

Uncorrected vision continues to endanger the lives of drivers, passengers, and pedestrians around the world. Compounded by external factors such as nighttime driving, inclement weather, and adverse road conditions, uncorrected vision contributes to more than 1.25 million road accident deaths each year. Until recently, the intersection of vision and road safety has not received adequate attention. Consequently, there is a lack of awareness around the need to address the impact of vision problems on driver and road safety. While governments and policymakers can play a significant role in raising greater awareness of this public health threat, eye care professionals are also part of the solution as they are a competent authority in promoting effective assessment of vision and correcting drivers’ visual functions.

 

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Proper visual correction and safe drivingCliquez ici pour lire l'article

The results of optometric analyses are reported to discuss the relationship between adequate visual acuity, efficient state of binocularity, and other abilities required when driving. The results are also supported by the presence of substantial symptoms reported by drivers and associated with these visual performances. Experimental evidence found that the role of visual acuity related to the binocularity, particularly in presence of anisometropia, has consequences on the perception of distances in terms of speed of perception (stereospeed). Significant correlation was also found between visual acuity and both glare sensitivity and light vision. Both eye-hand and eye-foot reaction times were measured, and the presence of limitations of the visual field was found to influence the speed of response to a visual stimulus.

 

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Single vision lenses with additional near powerCliquez ici pour lire l'article

Life in modern societies is increasingly digitalized. The increase in near-point activities brought on by the widespread use of all kinds of digital devices is triggering a notable increase in the visual fatigue syndrome known as digital eye strain (DES), accommodative and vergence dysfunctions and dry eye. As practitioners, we must face this challenge – which represents nothing less than the digital Everest for our eyes – with concrete solutions for real life. Single vision lenses with additional near-power is an example of one such solution we are using to treat a number of clinical cases. In this review, we are going to share what we are busy doing to resolve this challenge.

 

 

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Myopia and effective management solutionsCliquez ici pour lire l'article

Myopia is becoming a real public health concern across the world.

The number of myopic people is increasing rapidly. The prevalence of high myopia is also expected to rise. Understanding myopia development and methods to slow its progression is currently one of the biggest stakes for researchers and clinicians from around the world. In this paper, a few Vision Scientists at Essilor have put together a general overview of myopia condition. In this article they review the definition of myopia, its evolution and causes. They describe available solutions for myopia management and discuss the relative efficacy for each solution. Finally, they focus on Myopilux®, the specific range of ophthalmic lenses which have been proven to effectively correct and control myopia progression in children.

 

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pdv73 light exposureClick here to read the article

There is evidence in many countries globally that the prevalence of myopia is on the rise.

Advances in measurement technology now allow many environmental factors potentially associated with the development and progression of myopia to be quantified reliably and sampled densely. Our recent prospective longitudinal study of Australian schoolchildren, utilising wearable sensor technology has provided the first direct evidence of a significant relationship between personal ambient light exposure and eye growth in childhood;
demonstrating that greater daily light exposure is associated with slower eye growth. These findings support the potential for interventions aimed at increasing daily outdoor light exposure, to reduce the development and progression of myopia in childhood.

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pdv73 myopia healthClick here to read the article

The prevalence of myopia and high myopia is on the rise across the world.

Recent work from the Brien Holden Vision Institute estimates that by 2050, five billion (50%) people will be myopic, one billion (10%) highly myopic. This may have important implications for planning comprehensive eye care services, including refractive services such as spectacles and contact lenses for correcting and slowing myopia progression.

Optical and environmental interventions can help in preventing and managing high myopia related ocular complications and reduce the burden of myopia..

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pdv73 myopia chinaClick here to read the article

Wenzhou Medical University (WMU) is one of the leading educational and research medical universities in China. Beyond its academic excellence and high-end medical services, WMU is a leader in advanced research in ophthalmology and optometry. Against the backdrop of an unprecedented rise in myopia in East Asia, several research programs at WMU have been vigorously dedicated to furthering understanding of the condition and developing new treatments for it.

This interview with Professor Lu Fan, the president of Wenzhou Medical University, explores in depth the scope of the latest scientific and clinical efforts to slow down the myopia pandemic.

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pdv73 orthokeratologyClick here to read the article

Corneal reshaping through orthokeratology as a means to control myopia progression has made tremendous progress over the past decade. Below, Dr. Cary M Herzberg, president of the International Academy of Orthokeratology and Myopia Control (IAOMC), discusses the developments that have been made in the field and how the IAOMC hopes to continue to push the scientific envelope in the years to come.

Dr. Gonzalo Carracedo of the University Complutense in Madrid then details how orthokeratology has come to be recognized worldwide as a safe and effective procedure in the long term.

The orthokeratology (Ortho-K) effect was first observed as a side effect of contact lenses made of Poly methyl methacrylate (PMMA), which flattened in their radius of curvature over time. “What started as a method to reduce temporarily the refractive error of nearsighted individuals evolved, with the help of innovative design choices, to advanced engineering of the corneal surface of the eye,” explains Dr. Cary M. Herzberg, OD FIAO, president of the International Academy of Orthokeratology and Myopia Control (IAOMC).

With the optics and resulting aberrations of an oblate corneal surface including spherical aberration, advanced design choices could provide solutions for progressive myopia and presbyopia. Ortho-K also attracted maverick practitioners, who brought a spirit of imaginative innovation to the world. “It has been my honor to have led several of these organizations and to have helped found the international academy, which now spans the globe,” continued Dr. Herzberg. “Our mission is in part to help find solutions to the myopia epidemic which threatens the eye health of present and future generations”.

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