Child looking at a mobile phone.

Project: Incidence of Myopia and Risk Factors affecting the Progression of Myopia

Myopia is becoming more common among children across all regions of the world, and the onset of myopia is occurring more earlier. The aim of this project is to investigate refractive errors among children aged 8-16 years old and also, risk factors (i.e electronic devices including smartphone, tablet, computer etc., and outdoor time, genetics, etc.) that possibly can affect the progression of Myopia.

Facts about the project

Project members
Pelsin Demir, Karthikeyan Baskaran, António Filipe Teixeira Macedo, Linnaeus University
Participating organizations
Linnaeus University
Linnaeus University and Specsavers Sverige
1 March 2018-1 March 2022
Optometry (Department of Medicine and Optometry, Faculty of Health and Life Sciences)

More about the project

Myopia is becoming more common among children across all regions of the world, and the onset of myopia is getting earlier and earlier, with more children progressing to high myopia. High myopia is also associated with greater future risks to vision. By 2050, myopia is projected to affect almost 5 billion people or 50% of the world's population. An increased use of electronic devices such as mobile phones, computers and tablets has been noted among children and young people prefer to stay indoors more and more to spend hours in front of various electronic screens with a short working distance (i.e. sitting too close to the eye).

Previous prevalence research in Sweden is limited to retrospective chart reviews, old studies involving only clinic patients and particular sample group and some without cycloplegic accommodative control. This study is the first population-based study designed to examine myopia prevalence and incidence in Swedish school-aged children. The purpose of this study is to investigate the prevalence and incidence of myopia and risk factors for myopia progression in larger group of children in Sweden. The study will be performed on school children aged 8-16 years old. All primary and secondary schools in Sweden are invited to participate in this study. This is a large multi-centre international study, and the study will also be conducted in Australia, China, Vietnam and India.

Welcome to participate in the research study!

The participants will undergo a detailed eye examination at Linnaeus University in Kalmar. The parents/guardians will be asked to answer a questionnaire related to the child’s vision. Additionally, to get reliable and accurate values, we need to use drops that dilates the pupil of the eye. The entire visit will take about 90 minutes.

Each participant will be followed up for 2 years and meet us every six months (a total of 5 visits). This is because we want to investigate whether the child develops any myopia during these 2 years, and if the child already is myopic, we want to investigate if the child develops more during the time they visit us. All participants will receive free vision examinations and free visual consultation within these 2 years and a renewed prescription that can be used at any store after each examination. If abnormal eye changes are detected, this will be informed and, if necessary, referred to respective eye hospital.

If this sounds interesting and matches the age of your child, please book time with us on +46 (0)480-446274 or e-mail us at
Recruitment takes place until June 20.