Measurement of Low Vision in Children and Infants

Avaliação da visão funcional para crianças com baixa visão de dois a seis anos de idade - estudo comparativo

“…Apesar das relativas limitações, este estudo difere dos precedentes porque nele foram incluídas somente crianças sem problemas neurológicos e em uma faixa etária bem delimitada, de dois anos a seis anos seis meses (2)(3)(4)(5)(6)(7) .…”

“…Embora existam alguns testes para avaliação da visão funcional, esses variam quanto à metodologia e à idade de aplicação (2)(3)(4)(5) . No Brasil, os testes padronizados são o Método para Avaliação da Conduta Visual de Lactentes (6) , utilizado para bebês com idade até 3 meses; e o Questionário da Função Visual Infantil (7,8) , para crianças com até sete anos de idade.…”

The Development of the LV Prasad-Functional Vision Questionnaire: A Measure of Functional Vision Performance of Visually Impaired Children

“…Functional vision is defined as vision that can be used to perform a task(s) requiring vision-that is, how a person uses vision. 2 There are a number of tools for assessing functional vision [2][3][4][5][6][7][8][9][10][11] but most are inappropriate for use with children, especially those from developing countries, because many of the items in these tools pertain to maintaining a home and finances and reading the newspaper, for example. Questionnaires are useful for collecting data on functional vision because they can be applied to general population groups, they do not require attendance at a clinic, and they are quick and inexpensive to administer.…”

The Apparently Blind Infant

“…132 Citing these and other potential pitfalls, Kushner 337 cautioned against using the results of grating acuity to classify children as legally blind for social service purposes as doing so may overestimate their visual function and unjustifiably deny financial benefits to qualified children. While conventional visual evoked potential (VEP) testing has not proved to be a reliable method of quantitative visual evaluation in patients with cerebral palsy, mental retardation, or severe neurological disease, 19,61,176,182,395,396,557 modified techniques using sweep and step VEP may provide more accurate information.…”

“…Other batteries of tests with the stated purpose of evaluating vision in children with severe visual deficits have been recently described. 132 Much valuable clinical information about visual impairment in children has been gleaned from the collaborative efforts of various subspecialists working as multidisciplinary diagnostic teams. The collaborative efforts of pediatric ophthalmologists, pediatric neurologists, electrophysiologists, behavioral psychologists, and developmental specialists, among others, will be needed to further enhance our understanding of the various disorders discussed within.…”