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Query: UMLS:C0038379 (strabismus)
 9,317 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Information on the incidence and prevalence of visual disorders is important, but is often difficult to obtain. In this article, such information has been collected from a number of sources and is summarized and presented in a concise manner. The conditions covered include Amblyopia, Strabismus, Convergence Insufficiency, Eye Coordination difficulties, Perceptual Motor Problems and causes of blindness.
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PMID:Incidence and prevalence of selected visual conditions. 713 Jun 6

Re-examination of corrected visual acuity was done in 137 18-year-old Danes, who were originally examined at the age of 10 years, as part of a study of sequels to low birth weight (LBW) (Fledelius 1976). Median values indicate that most adolescents are able visually to discriminate considerably above the customary 6/6 limit. As compared with low-birth-weighters (n=70), full-terms (n=67) show a significantly higher cumulated visual acuity score. Similarly, binocular median visual acuities are 1.2 (LBW) and 1.4 (in FT). The difference is neither explained by the ex-prematures' higher frequency of heterotropia, nor by their (minor) share of eyes with subnormal vision. The latter occurred especially in the subgroup of 'myopia of prematurity'. The exceptional cases with RLF-blindness were discarded from follow-up. Concerning visual acuity, the previously reported lagging behind of ex-prematures in childhood has proven to be not only a temporary delay, but a permanent (adult) feature.
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PMID:Ophthalmic changes from age of 10 to 18 years. A longitudinal study of sequels to low birth weight. II. Visual acuity. 721 Dec 84

A developmental approach to preschool vision screening is described. The choice of acuity testing material in this test is determined by the child's capabilities, assessed prior to acuity testing. When compared with the Society for Prevention of Blindness test, this approach yields approximately half the number of untestables. Further, the acuity data from the two screening tests are quite similar, and both agree well with data from an additional screening by a pediatric ophthalmologist. Screening of preschool children usually requires a number of compromises in methods felt to be ideal for adults. Sacrifices in cost (i.e., additional personnel to assist the tester), additional effort (i.e., prior training of the children), or precision of acuity measures (i.e., cruder picture type targets for all children and use of isolated targets) are typically made to assure testability. These problems have been minimized by the Experimental method. Because of its low untestability rate and its apparently valid acuity data, this developmental vision screening test can be recommended as a cost effective approach to preschool vision screening. Previous research has shown that ratings of a child's behavior during this developmentally oriented vision screening test predict results of diagnostic cognitive tests as accurately as extensive tests designed exclusively for developmental screening. This test is then extremely cost effective when used for comprehensive preschool screening.
J Pediatr Ophthalmol Strabismus
PMID:A developmental approach to preschool vision screening. 724 8

The authors present a case of a 15-year-old girl with Leber's congenital amaurosis with associated nephronophthisis. The main findings in this case are: congenital blindness; enophthalmos; photophobia; nystagmus; keratoconus; cataracts; pigmentary degeneration in the fundus of both eyes; progressive uremia with absence of hematuria, proteinuria, pyuria, and glycosuria; low urinary density, normal lipidic profile; osteoporosis; absence of edema; polydipsia; polyuria; and a history of consanguinity between her parents. Tranmission of this entity allows an autosomal recessive pattern.
J Pediatr Ophthalmol Strabismus
PMID:Leber's congenital amaurosis with associated nephronophthisis. 739 8

To assess the prevalence and causes of ocular abnormalities in children, we performed a cross-sectional survey with cluster sampling in Madagascar in Antananarivo primary schools in October 1994. Our other aim was to sensitize the sanitary authorities and the students of ophthalmology to the notion of public health ophthalmology in a country where a national blindness prevention program is being established. 1,081 children aged from 8 to 14 years (mean age 10.6 years) were examined. 51, or 4.7%, were diagnosed as having ocular abnormalities. These abnormalities were distributed as follows: 22 cases or 2% of the sample had refractive errors including 0.74% with myopia of less than 6 dioptrics, 0.18% with myopia of more than 6 dioptrics, 0.83% with hypermetropia of less than 6 dioptrics, and 0.28% with hypermetropia of more than 6 dioptrics; 15 cases or 1.4% of the sample had unilateral amblyopia including 0.9% with anisometropia, 0.37% with strabismus, and 0.09% with macular pathology; 8 cases or 0.74% of the sample had strabismus without amblyopia; and 6 cases or 0.57% of the sample had simple medical pathology. The results showed that 29 children were supposed to have an optic correction, including surgical treatment for 12 and medical treatment for 6. The same low frequencies of ocular abnormalities, mainly concerning refractive errors, were found in the literature. However, children suffering from important visual impairment do not attend school, and we cannot generalize the above results for the whole population.
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PMID:[A survey of the prevalence and causes of eye disorders in primary school children in Antananarivo]. 764 Aug 99

The ocular findings and visual prognosis were reviewed in 24 patients with the Treacher-Collins syndrome who were evaluated in the craniofacial clinic in the Division of Pediatric Ophthalmology at Children's Hospital of Philadelphia between 1980 and 1991. All patients had some abnormality. Vision loss was present in 37% of patients. Amblyopia was present in 33%, significant refractive errors were present in 58%, and anisometropia was documented in 17%. Strabismus was present in 37% and significant lid and adnexal abnormalities were seen in 96%. The prognosis for normal vision in at least one eye is good but vision loss secondary to amblyopia is more resistant to treatment owing to other medical problems and social concerns.
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PMID:Ophthalmic features and visual prognosis in the Treacher-Collins syndrome. 821 33

Fifty-eight prematurely born children (gestational age < or = 32 weeks) were studied at the age of 5 years. The ophthalmological examination was part of an extensive neurodevelopmental evaluation. The eye study revealed significant hyperopia (> or = + 2.0) in 22.4%, myopia (> or = -1.0 D) in 8.6%, astigmatism (> or = 1.0 D) in 12.1%, and anisometropia (> or = 1.0 D) in 12.1%. The myopic refractive error was high in all of the cases: from -6.0 to -14.0 D. Manifest strabismus was found in 24.2% and significant visual impairment or blindness in 6.9%. Optic atrophy and cicatricial retinopathy of prematurity were the main causes for severe visual defects. In the randomly selected full-term children of the same age, significant hyperopia was seen in 14.3%, astigmatism in 5.4% and strabismus in 1.8%. The pattern of the eye findings was different in the preterm children compared with those born at term.
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PMID:Ocular findings in prematurely born children at 5 years of age. 831 15

Grade IV intraventricular hemorrhage (IVH) is a severe complication of premature birth. We retrospectively performed serial exams on 13 infants with grade IV IVH and compared their ocular findings to 11 infants matched by gestational age and birth weight without an IVH. All children in the study were initially examined in the neonatal unit within 8 weeks after birth. Subsequent periodic eye exams were performed until 3 to 7 years of age. Of the 13 grade IV IVHs, there was a 92% incidence of ocular abnormalities, compared to a 73% incidence in the premature group without IVH. The children with grade IV hemorrhages had a statistically significant increased incidence of severe eye disease with resultant visual loss (38%) compared to the non-IVH group. Loss of vision was due to optic atrophy and retinopathy of prematurity. Grade IV IVH children are at high risk for severe eye disease and should have early and frequent ophthalmologic exams.
J Pediatr Ophthalmol Strabismus
PMID:Ocular findings in premature infants with grade IV intraventricular hemorrhage. 850 22

Patients with diabetes are at risk for multiple visual complications, most notably diabetic retinopathy, but also glaucoma, cataracts, optic nerve disease, and strabismus. Diabetic retinopathy is the leading cause of blindness for the majority of Americans. Microvascular damage from diabetes leads to microaneurysms, hemorrhage, exudates, and cotton-wool spots. Further progression of disease leads to new vessel growth, or neovascularization. Growth of new blood vessels can cause severe hemorrhage, scarring, and permanent visual loss. Various randomized, prospective studies have clearly shown benefit from laser therapy at specific stages of progression of retinopathy. Proper referral and close follow-up are paramount to the preservation of visual function.
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PMID:Diabetic eye disease: a primary care perspective. 863 69

Binocular function was assessed as part of a more extensive examining programme in 88 children now aged 7-10 years. Initially they joined a regional screening programme for retinopathy of prematurity (ROP) after pre-term delivery 1982-84; their mean values for gestational age and birth weight were 31 weeks and 1467 g, respectively. Binocularity was evaluated from cover test 6 m and 30 cm, Schober, Worth four dot, and Titmus stereo test. Excluding the four children with bilateral blindness due to ROP, 84 subjects were available, but occasional refusals were met also here. The overall frequency of 'strabismus' became 17.8%, as based on the combination of tests, and with emphasis on the sensory recordings. Binocularity patterns in subsamples were not significantly influenced by a) regressed ROP, b) gestational age 30 weeks and less. In contrast, c) the subgroup with severe CNS damage (n = 24) appeared more deviant, confirming the established association between brain damage and strabismus.
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PMID:Pre-term delivery and subsequent ocular development. A 7-10 year follow-up of children screened 1982-84 for ROP. 2) Binocular function. 882 30


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