Myopia in Haredi pupils: what the research did and did not find
Israeli studies found differences in myopia across school settings. They do not prove religion causes eye disease or that the children developed cataracts.
The key distinction: myopia and its complications
Israeli studies found a higher prevalence of myopia among boys in Haredi educational settings than in comparison groups. This is not the same claim as a measured increase in cataracts or retinal detachment among those children. The studies examined vision and lifestyle and study habits; connecting them to other complications requires distinguishing the actual finding from broader medical knowledge.
What the iREAD study examined
A paper published in February 2023 in Scientific Reports presented baseline data from the iREAD study. The analysis included 168 boys aged 6 to 10 from three groups: Haredi, religious and secular. Myopia prevalence in the sample was about one-third overall: approximately 46% in the Haredi group, 25% in the religious group and 20% in the secular group. These are children in a particular sample, rather than current rates automatically representing all adolescents in Israel.
Different habits do not prove a single cause
The researchers examined light exposure and activity using a wearable device, alongside questionnaires and vision examinations. Participating Haredi boys spent less time outdoors on weekdays and more hours at school. The adjusted analysis found an association between myopia and time at school and near work, but no independently significant association with outdoor time. The paper therefore cannot be described as proof that limited daylight alone caused the outcome.
What was found among adolescents?
Another study, published in 2019 in JAMA Ophthalmology, examined 22,823 military service candidates aged 17 to 18 who were assessed in 2013. Myopia was found in 82.2% of participants in Haredi education, compared with 50.3% in religious education and 29.7% in secular education. This observational study examined the association between the education system and myopia prevalence and severity. It does not prove religious affiliation is the cause, nor does it include an equivalent conclusion about girls.
Why myopia still deserves serious attention
Myopia blurs distant objects, and properly fitted glasses or contact lenses can improve vision. At high degrees, it is also associated with an increased risk of additional problems, including retinal detachment; medical literature also describes an association with cataracts. Increased risk does not mean every child will develop a complication. Do not replace individual assessment with a headline about an entire group or infer a diagnosis from school type.
What parents and educators can take from this
If a child struggles to see the board, squints or reports blurred vision, arrange an appropriate eye examination. Ask the professional what was found, when follow-up is needed and which options suit the child's condition. Outdoor activity is worth discussing as part of the routine, but does not replace prescribed glasses or follow-up. Also ask when the difficulty actually affects the child, rather than merely whether they wear glasses.
Read the numbers in context
When encountering a figure about pupils' health, check participants' ages, when data were collected and exactly what was measured. A sample rate is not an individual forecast, and a statistical association is not a single explanation for disease. Here, that distinction makes it possible to focus on examinations and everyday conditions without attributing a medical problem to every Haredi pupil, or overlooking a similar difficulty in a pupil from another setting.
