Incidence of loss of vision in the healthy eye in amblyopia.

Tommila, V.; Tarkkanen, Ahti

doi:10.1136/bjo.65.8.575

Cited by 159 publications

(84 citation statements)

References 2 publications

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“…The number of severe eye injuries among the Omani children is relatively high (Lithander, in preparation) and the risk of losing the healthy eye is increased compared to the risk of losing the amblyopic eye in an accident, as shown by Tommila & Tarkkanen in 1981. Increased prevalence of blindness in the population is still a reality in this part of the world.…”

Section: Discussionmentioning

confidence: 99%

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

Lithander

1998

Acta Ophthalmologica Scandinavica

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ABSTRACT.Purpose: The purpose of this study was to investigate the prevalence of common eye disorders in a nationwide school survey conducted in the Sultanate of Oman. The results presented here are those involving amblyopia induced by strabismus or anisometropia. Methods: A random selection of primary schools provided a sample that included 49 schools with 6541 children in Grades 1 and 6. Examinations of the eyes of 96% of these children were conducted doing visual acuity screening to 0.5. All 6292 children had an external eye examination. All children failing the visual acuity test had a complete eye examination. Results: Amblyopia was found in 0.92%, strabismic amblyopia in 0.48%, anisometropic amblyopia in 0.44% and strabismus with or without amblyopia was seen in 0.9%. There was statistically significantly (p∞0.05) more amblyopia in 11-12 year olds (Grade 6) when compared with the 6-7 year olds (Grade 1). This difference was only found among the strabismic children. Conclusion: When compared to Europe or North America the prevalence of strabismic amblyopia is lower, whereas anisometropic amblyopia occurs with approximately the same frequency. The increase of strabismic amblyopia in the older children indicates a development of amblyopia after the age of 6 to 7 years in an untreated population.

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Section: Discussionmentioning

confidence: 99%

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

Lithander

1998

Acta Ophthalmologica Scandinavica

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“…Early identification and treatment of strabismic children may prevent amblyopia 7 . The strabismus child with amblyopia has a significantly higher risk of becoming blind by losing vision in the non-amblyopic eye, due to trauma or disease 8,9 . In the developed countries, many parents notice squint early in their babies and present early to the ophthalmologists unlike in the developing countries.…”

Section: Introductionmentioning

confidence: 99%

Pattern of squint presentations in children in a tertiary institution in Western Nigeria

Bodunde¹,

Onabolu²,

Fakolujo³

2014

IOSRJDMS

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“…52 While the debate on preschool vision screening continues, primary screening backed up by secondary orthoptic/optometric assessment has been shown to substantially decrease the number of inappropriate referrals to hospital clinics. 33,51,[53][54][55][56][57][58] Where this occurred, only 14% were referred to the hospital clinic, of whom 76% were referred back to the community for subsequent full or partial management. 54 Such schemes have also demonstrated that children are referred earlier for treatment (average age decreased from 6.6 years to 5 years) and that the relationship between social deprivation and the age of presentation of asymptomatic amblyopia is abolished.…”

Section: Discussionmentioning

confidence: 99%

The assessment and management of strabismus and amblyopia: a national audit

Wickham

Stewart

Charnock

et al. 2002

Eye

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Aims To determine what systems are in place within ophthalmic services for the assessment and management of children suspected of having amblyopia and strabismus. To find out what methods are used for the assessment of these children. Methods A questionnaire-based study auditing 288 orthoptic departments in the UK. Results Responses were received from 75% orthoptic departments. Most hospitals employ more than one system for the assessment of strabismus and amblyopia, which is generally dependent on route of referral. These include 'orthoptic assessment without refraction' (66%), 'combined orthoptist and ophthalmologist assessment' (66%), while 22% have an entirely orthoptist/optometric system.Ophthalmologists are involved in the initial assessment in 145 units (67%), whereas some units involve an ophthalmologist only if response to treatment is poor (15%), or if surgery is required (6%).Fourteen per cent of units reviewed all children, with discharge criteria being based on normal visual acuity (52%), accurate visual acuity (39%) and a normal orthoptic assessment (42%). Seventy-six per cent of units review some children, commonly as a result of family history (55%), parental concern (43%), poor co-operation (30%) and young age (72%). In the absence of squint or amblyopia children are discharged at the first visit, in only 8% of units.There is considerable variation in the tests used to assess visual acuity. LogMAR-based tests (eg EDTRS) are not routinely used in 75% of units. Conclusion Different systems exist for the assessment and management of squint and amblyopia across the country. While much of this variation is to be expected given their possible aetiologies, some could be reduced to produce a more cohesive service. There is also considerable scope for rationalising the tests used to screen infants and children for amblyopia and strabismus.

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Incidence of loss of vision in the healthy eye in amblyopia.

Cited by 159 publications

References 2 publications

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

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

Pattern of squint presentations in children in a tertiary institution in Western Nigeria

The assessment and management of strabismus and amblyopia: a national audit

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