Detection and Measurement of Visual Impairment in Pre-Verbal Children

Proceedings of a workshop held at the Institute of Ophthalmology, London on April 1–3, 1985, sponsored by the Commission of the European Communities as advised by the Committed on Medical Research

Häftad, Engelska, 2011

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Proceedings of a workshop held at the Institute of Ophthalmology, London, April 1-3, 1985, sponsored by the Commission of the European Communities as advised by the Committee on Medical Research

Produktinformation

Utgivningsdatum2011-10-05
Mått155 x 235 x 26 mm
Vikt640 g
FormatHäftad
SpråkEngelska
SerieDocumenta Ophthalmologica Proceedings Series
Antal sidor418
FörlagSpringer
ISBN9789401083935

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Oftalmologi inom Medicin

Session I - Normal Development of Vision and Causes of Visual Impairment.- Organisation, development and early manipulations of primate’s visual pathways.- Ocular growth and the normal development of vision: clinical aspects.- Genetic causes of visual impairment in childhood.- Non-genetic causes of visual impairment in early childhood.- The changing aetiology of visual impairment in early childhood in Greece.- Discussion.- Development of vision in visually impaired children.- Definitions of visual impairments and their consequences in infants and small children.- Discussion.- Session II - Electrophysiological and Psychophysical Tests - Theoretical Aspects.- Theoretical aspects of the pattern ERG.- Identification of first and second order Volterra kernels for the human electroretinogram.- Discussion.- Pattern VEPs in very young infants.- VER testing of cortical binocularity and pattern detection in infancy.- Discussion.- Session III - Measurement of Visual Acuity in Pre-verbal Children.- Visual function in the newborn infant: behavioural and electrophysiological studies.- Discussion.- Development of separation-ability of contours during childhood: quantification of the crowding phenomenon in amblyopia.- Measurement of visual acuity in young children by a new instrument: Casimir.- Discussion.- Evaluation of electrodiagnostic tests in children.- The pattern reversal ERG and its application to the measurement of infant visual acuity.- Discussion.- Measurement of visual acuity in infants and young children by visual evoked potentials.- Discussion.- Comparison of rapid procedures in forced choice preferential looking for estimating acuity in infants and young children.- Visual crowding in young children.- The development of preferential-looking visual acuity in humaninfants: a correlation with animal models.- Preferential looking acuity in normal and neurologically abnormal infants and pediatric patients.- Preferential looking for the detection of early amblyopia and monitoring early therapy.- Discussion.- Computer assisted evaluation of visual functions in non verbal children.- Discussion.- Visual acuity assessment with preferential looking1 in young children treated for opacities of lens and vitreous: a longitudinal study.- Refractive changes and retarded visual development in aphakic children after operation for congenital cataract.- Discussion.- Albinism: an anomaly of maturation of the visual pathway.- Discussion.- Session IV - Measurement of Other Functions.- Objective evaluation of binocular cooperation in normals and strabismics by means of visual evoked responses.- Discussion.- Dark adaptation assessment in childhood, especially early childhood (review).- Discussion.- Visual field measurements, optokinetic nystagmus and the visual threatening response: normal and abnormal development.- Discussion.- Nasal field defects in strabismic amblyopia.- Discussion.- Apparent blindness due to saccadic paralysis or delay.- Discussion.- Session V - Screening of Pre-verbal Children.- Experience with our present screening program.- Early detection of visual disorders in health centres in young children.- Discussion.- Problems of screening and its implications to the orthoptic service in West Berkshire.- Discussion.- Rapid assessment of visual acuity in infants and children in a clinical setting, using acuity cards.- To what extent is it possible to quantify monocular or binocular visual impairment in pre-verbal children? Role of clinical signs and of electrophysiological and psychophysical testing techniques.- Population vision screening and individual visual assessment.- Discussion.- Final Discussion.