Evidence map›Paper›PMID 34645964›Full record

ArticleEye (London, England)2022

Prevalence of myopia and its risk factors in rural school children in North India: the North India myopia rural study (NIM-R Study).

Rohit Saxena, Vivek Gupta, Priyanka Prasad, Amit Bhardwaj, Praveen Vashist

Open access · bronzeAbstract read
In one paragraph

Article in Eye (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Urban-Rural and School-Type Disparities in the Prevalence of Myopia and High Myopia in South India.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Rohit SaxenaDepartment of Ophthalmology, Dr Rajendra Prasad Center for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India. rohitsaxena80@yahoo.com.ORCID 0000-0002-8660-8062
Vivek GuptaDepartment of Community Ophthalmology, Dr Rajendra Prasad Center for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Priyanka PrasadDepartment of Ophthalmology, Dr Rajendra Prasad Center for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Amit BhardwajDepartment of Community Ophthalmology, Dr Rajendra Prasad Center for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Praveen VashistDepartment of Community Ophthalmology, Dr Rajendra Prasad Center for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
All India Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo assess the prevalence of myopia and its risk factors in rural school children.

methodsChildren in classes 4-7 of eight randomly selected schools (five government and three private) in rural Haryana, with unaided vision <6/9.5 were screened, their cycloplegic refraction is done, myopes were identified. A questionnaire-based assessment of risk factors was done for myopes and compared with 10% of randomly selected children with normal vision (controls). The prevalence of myopia and its association with risk factors were assessed.

resultsChildren screened were 1486 (89.5% coverage). The mean age of children was 11.2 ± 1.5 years with 861 (57.9%) boys. Prevalence of myopia was 6.4% (95% Confidence intervals [CI]: 5.2%, 7.8%). Prevalence was higher among private schools (10.1%) compared to government schools (1.4%) (p < 0.001), and among girls 7.2% (45/625) compared to boys 5.8% (50/861) (p = 0.2786). The mean spherical equivalent refractive error was -1.61D ± 1.32D. The prevalence of high myopia was 1.1% (1/95). There was a 75% unmet need for spectacles. Studying in private school was positively associated with myopia as per our multivariate analysis (p = 0.016). An inverse association was found for time spent outdoors (p = 0.009). Watching television, indoor time, screen time, age, or gender were not found to be statistically significant as risk factors.

conclusionThe prevalence of myopia is increasing among children of rural areas, especially those in private schools with a strong inverse association with time spent outdoors. Regular screening, lifestyle modification and awareness about modifiable risk factors are essential.

Indexed as

MydriaticsMyopiaChildFemaleHumansIndiaMalePrevalenceRefraction, OcularRisk FactorsMydriatics

Identifiers

PMID34645964
PMCPMC9500005
OpenAlexW3204991297

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.