Prevalence and Associated Factors of Ametropia among Schoolchildren Aged at Least 6 Years in North Benin
Codjo Rodrigue Abel Assavedo*, Amadou Issifou Alfa Bio and Saadiath Hada
Ophthalmology Teaching and Research Unit, Department of Surgery and Surgical Specialties, Faculty of Medicine, University of Parakou. State of Borgou, Republic of Benin
*Corresponding Author: Codjo Rodrigue Abel Assavedo, Head of Ophthalmology Teaching and Research Unit, Department of Surgery and Surgical Specialties, Faculty of Medicine, University of Parakou, State of Borgou, Republic of Benin.
Received:
May 22, 2021 ; Published: September 26, 2021
Abstract
Introduction: Ametropias are the first reason for ophthalmological consultations of school children. It is a public health problem and one of the main causes of visual impairment in the world.
Purpose: To study the prevalence and associated factors of ametropias among primary school children aged 6 years old and over in the commune of Parakou in 2020.
Patients and Methods: This was a cross-sectional, descriptive and analytical study that took place from july 1st to 30 th september 2020. It involved school children aged at least of 6 years old, residing in the commune of Parakou and enrolled in the various elementary school in this commune for the 2019 - 2020 school year..
Results: A total of 810 children aged 6 - 15 years old had participated to the study. The prevalence of ametropias was 19.87%. The 6 - 7-years-old age group had the most ametropia (34.40%). A female predominance had been objectified (52.23%). Hyperopia was the most represented refractive abnormally (42.68%), followed by astigmatism (39.49%) and myopia (22.93%). Ocular pruritus (p = 0.000) and studying with poor luminosity (p = 0.001) were statistically significantly associated with ametropia. Age (p = 0.0164), sex (p = 0.0095), father's socioeconomic status index (p = 0.0002), mother's socioeconomic status index (p = 0.013), and parental history of wearing corrective lenses (p = 0.0178) were statistically significantly associated with hyperopia. On the other hand, history of prematurity (p = 0.0428) and malnutrition (p = 0.000) were statistically significantly associated with astigmatism and only malnutrition (p = 0.0001) was statistically associated with myopia. However, 3.82% of ametropes were amblyopic.
Conclusion: Ametropia still be a major concern in the children school setting because of its significant prevalence (19.87%) and its complications, which are preventable with early diagnosis and management.
Keywords: Ametropia; Prevalence; Associated Factors; Schoolchildren; Parakou
References
- Flament J. “Ophtalmologie: Pathologie du système visuel (Abrégés Connaissances Et Pratique)”. Paris: Elsevier (2003).
- Eddrazi H., et al. “Epidémiologie des troubles réfractifs chez l’enfant”. Fac Médecine Pharm – Marrakech (2013): 1-4.
- Meng W., et al. “Axial length: An underestimated endophenotype of myopia”. Medical Hypotheses2 (2010): 252-253.
- Gatinel D. “Anomalies de la réfraction: hypermétropie. Dans: Gatinel D. Refractive Surgery. 2nd édition. Paris: Elsevier NY (2006): 36-41.
- Denis D., et al. “La réfraction chez l’enfant: épidémiologie, évolution, évaluation et mode de correction des amétropies”. Journal Français D'Ophtalmologie8 (2004): 943-952.
- Speeg-Schatz C. “Examen Clinique”. Dans: Speeg-Schatz C, Dureau P. Examen ophtalmo-pédiatrique. 1st édition. Paris: Lavoisier (2014): 33-35.
- Genoud PA. “Indice de position socioéconomique (IPSE): un calcul simplifié”. Université de Fribourg (2011).
- Nonon Saa KB., et al. “Amétropies en milieu scolaire dans le région centrale du Togo”. Journal Français D'Ophtalmologie 36 (2013): 769-774.
- Assoumou PA., et al. “Les amétropies en milieu scolaire primaire dans la province de l’Estuaire au Gabon”. Bulletin Médical d'Owendo 45 (2018): 6-10.
- Sounouvou I., et al. “Amétropies en milieu scolaire primaire à Cotonou”. Journal Français D'Ophtalmologie 8 (2008): 771-775.
- Rakotoarisoa RTR., et al. “Refractive errors: epidemiological profile in children in Madagascar”. World Journal of Pharmaceutical Research 12 (2019): 182-189.
- Ayed T., et al. “Épidémiologie des erreurs réfractives chez des enfants scolarisés, socio-économiquement défavorisés en Tunisie”. Journal Français D'Ophtalmologie 7 (2002): 712-717.
- Odoulami-Yehouessi L., et al. “La réfraction de l’enfant scolarise au CNHU de Cotonou”. Mali Méd1 (2005): 24-27.
- Bremond-Gignac D and Copin H. “Développement de l’œil et de la vision. Dans: Speeg-Schatz C, Dureau P. Examen ophtalmo-pédiatrique. 1st édition. Paris: Lavoisier (2014): 13‑1
- Mahjoob M., et al. “Prevalence of refractive errors among primary school children in a tropical area, Southeastern Iran”. Asian Pacific Journal of Tropical Biomedicine2 (2016): 181-184.
- Hashim S-E., et al. “Prevalence of refractive error in malay primary school children in suburban area of Kota Bharu, Kelantan, Malaysia”. ANNALS Academy of Medicine Singapore11 (2008): 940-946.
- Kouassi LJ., et al. “Evaluation de la réfraction en milieu scolaire”. SOAO 1 (2018): 23-26.
- Maul E., et al. “Refractive Error Study in Children: results from La Florida, Chile”. American Journal of Ophthalmology4 (2000): 445-454.
- Goh P-P., et al. “Refractive error and visual impairment in school-age children in Gombak District, Malaysia”. Ophthalmology4 (2005): 678-685.
- Kawuma M and Mayeku R. “A survey of the prevalence of refractive errors among children in lower primary schools in Kampala district”. African Health Sciences 2 (2002): 69-72.
- Amoussou L. “Centre d’échange d’informations du Bénin [En ligne]”. Données socio-économiques (2020).
- El-Bayoumy BM., et al. “Prevalence of refractive and low vision among school children in Cairo”. Eastern Mediterranean Health Journal3 (2007): 575-579.
- Alamou S., et al. “Panorama des amétropies de l’enfant au Centre National, Hospitalier et Universitaire de Cotonou”. Bénin Medicine 50 (2012): 11‑1
- Al-Rowaily MA. “Prevalence of refractive errors among pre-school children at King Abdulaziz Medical City, Riyadh, Saudi Arabia”. Saudi Journal of Ophthalmology2 (2010): 45-48.
- F Farid MWF., et al. “Refraction errors in school children”. Menoufia Medical Journal1 (2018): 293-298.
- Eballe OA., et al. “La pathologie oculaire de l’enfant âgé de 6 à 15 ans: étude hospitalière à Yaoundé”. Cah Santé2 (2009): 61-66.
- Abdul-Kabir M., et al. “Ametropia among school children-A cross-sectional study in a sub-urban municipality in Ghana”. Pediatr Dimens3 (2016): 65-68.
- Pi L-H., et al. “Refractive Status and Prevalence of Refractive Errors in Suburban School-age Children”. International Journal of Medical Sciences6 (2010): 342-353.
- Ahmed C., et al. “Profil épidémiologique de l’hypermétropie en milieu scolaire primaire en tunisie : à propos de 6192 enfants”. Tunis Médical12 (2014): 727-731.
- Hashemi H., et al. “The age- and gender-specific prevalences of refractive errors in Tehran: the Tehran Eye Study”. Ophthalmic Epidemiology3 (2004): 213-225.
- Davitt B., et al. “Astigmatism Progression in the Early Treatment for Retinopathy of Prematurity Study to 6 Years of Age”. American Academy of Ophthalmology12 (2011): 2326-2329.
- Edwards MH., et al. “Do variations in normal nutrition play a role in the development of myopia?” Optometry and Vision Science10 (1996): 638-643.
- Glazier A. “Institute for control of eye myopia in children [En ligne]”. Nutrition and it’s Role in Myopia Progression (2020).
- Assavèdo RCA., et al. “Aspects épidémiologiques et cliniques des affections oculaires de l’enfant au CHD-Borgou, Bénin (à propos de 1109 cas)”. Rev SOAO 1 (2011): 218.
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