Prevalence of amblyopia with anisometropia or strabismus among schoolchildren in the Sultanate of Oman

Lithander, Joan

doi:10.1034/j.1600-0420.1998.760604.x

Cited by 44 publications

(28 citation statements)

References 12 publications

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“…This paper reports causes of eye damage due to injuries among 6292 school children in Grades 1 and 6. Visual impairment from other reasons such as amblyopia or myopia has previously been reported (Lithander 1998(Lithander , 1999. Vernal keratoconjunctivitis and trachoma are common disorders in this part of the world; these findings will be reported separately later.…”

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confidence: 76%

Loss of visual acuity due to eye injuries among 6292 school children in the Sultanate of Oman

Lithander

Kindi

Tønjum

1999

Acta Ophthalmologica Scandinavica

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ABSTRACT.Purpose: In 1992-94 a nation-wide survey in primary schools in the Sultanate of Oman for ocular disorders was conducted. This report focuses on the prevalence of visual acuity loss after injury. Methods and material: A random selection of 6292 children from Grades 1 and 6 from all primary schools in the country provided the research sample. Children who failed the visual acuity screening test received a complete ''on the spot'' eye examination by the pediatric ophthalmologist. Results: 12 children were found to have monocular low vision (VA ∞0.3 to amaurosis) caused by injury. Total prevalence for loss of vision in one eye was 0.19%, with 0.15% in 6-year-olds and 0.25% in 12-year-olds. Traumatic cataracts were noted in 4 children, 3 of these were in need of surgery. One child had aphakia after trauma surgery and needed a secondary lens implant. Conclusion: Altogether the prevalence of traumatic monocular visual damage in our study was 0.19%. Next to amblyopia, injury is the main reason for monocular loss of vision in childhood, however, both are preventable. Information about trauma prevention and the need for adequate ophthalmic care should be emphasized. Regular and repeated screening of visual acuity in children is essential.

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confidence: 76%

Loss of visual acuity due to eye injuries among 6292 school children in the Sultanate of Oman

Lithander

Kindi

Tønjum

1999

Acta Ophthalmologica Scandinavica

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“…The screening was undertaken by trained medical students involved in their 6th year of study at Sultan Qaboos University, with the assistance of supervisors. The 6-year-olds were tested for VA at a distance of 3 meters with the Kolt-test (Lithander 1996(Lithander , 1998, while the 12-year-olds were tested with the linear E-chart at 6 meters. If VA was found to be less than 0.5 in one or both eyes, they were referred to the paediatric ophthalmologist for a more detailed examination involving a complete eye examination which included cycloplegic retinoscopy in a specially prepared, darkened room.…”

Section: Methodsmentioning

confidence: 99%

Prevalence of myopia in school children in the Sultanate of Oman, A nation‐wide study of 6292 randomly selected children

Lithander¹

1999

Acta Ophthalmologica Scandinavica

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ABSTRACT.Purpose: Between 1992 to 1994 in the Sultanate of Oman, 6292 randomly selected school children from Grade 1 (6-year-olds) and Grade 6 (12-year-olds) were examined for visual acuity. The purpose of this paper is to present results that relate to the prevalence of myopia in this population. Methods: All children with uncorrected visual acuity below 0.5 in one or both eyes received a thorough eye examination including cycloplegic retinoscopy. Results: In the 6-year-olds there was an overall myopia (Øª1.0 D) of 0.56% and in the 12-year-olds there was 5.16%. In rural, remote areas there was statistically significantly less myopia in the older group when compared with the rest of the country. In the town of Nizwa in the region of Dakhlia, the value for high myopia (Øª7.0 diopters) in 12-year-old girls was 2.82% compared to an average prevalence 0.13%. Conclusion: In the Sultanate of Oman the prevalence of myopia showed consistency with findings in Europe and North America. There was significantly less myopia in remote areas. An increased prevalence of high myopia was seen in one of Oman's major cities.

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“…Overall prevalence was 0.22%. This is much lower than Oman (0.9%) [25] and the Islamic Republic of Iran (1.2%) [26].…”

Section: Discussionmentioning

confidence: 91%

Ocular disorders among schoolchildren in Khartoum State, Sudan

Rushood

Azmat²,

Shariq³

et al. 2013

East Mediterr Health J

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From December 2005 to June 2007, a total screening of all 1418 government primary schools in Khartoum State, Sudan, was performed to estimate ocular problems among children aged 6-15 years. We screened 671 119 children (56.7% males) for significant refractive error and other eye ailments. Ocular problems were found in 20 321 (3.03%) children. The 3 localities with highest ocular pathology were Karary (26.2%), Ummbada (21.0%) and Jabal Awlia (15.7%). The overall prevalence of refractive error was 2.19%. Myopia was found in 10 064 (1.50%) children while 4661 (0.70%) were hyperopic. Other ocular problems included vernal keratoconjunctivitis, vitamin A deficiency, microbial conjunctivitis, strabismus and corneal opacity. Only 288 (0.04%) children were diagnosed with active trachoma: 86.5% of these were from Ummbada locality, on the periphery of the State, where transportation facilities are poor and poverty is widespread. Overall, 99% of the eye ailments identified are either treatable or preventable. To reduce these and to achieve the goals of Vision 2020, an effective and efficient school health programme is needed.

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Prevalence of amblyopia with anisometropia or strabismus among schoolchildren in the Sultanate of Oman

Cited by 44 publications

References 12 publications

Loss of visual acuity due to eye injuries among 6292 school children in the Sultanate of Oman

Loss of visual acuity due to eye injuries among 6292 school children in the Sultanate of Oman

Prevalence of myopia in school children in the Sultanate of Oman, A nation‐wide study of 6292 randomly selected children

Ocular disorders among schoolchildren in Khartoum State, Sudan

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