Recently, there has been heightened interest in suggestions of enhanced visual acuity in autism spectrum disorders (ASD) which was sparked by evidence that was later accepted to be methodologically flawed. However, a recent study that claimed children with ASD have enhanced visual acuity (Brosnan et al. in "J Autism Dev Disord"…

Although good visual capacity is essential for children's learning, we have limited understanding of the various visual functions among school starters. In order to extend this knowledge, a small-scale study was undertaken involving 24 preschool children age 5-6 years who completed a test battery originally designed for visual impairment…

Background: Early identification of deaf-blindness is essential to ensure appropriate management. Previous studies indicate that deaf-blindness is often missed. We aim to discover the extent to which deaf-blindness in people with intellectual disability (ID) is undiagnosed. Method: A survey was made of the 253 residents of an institute offering…

We investigated the task processes which hinder people with intellectual disabilities (ID) when using the human-computer interface. This involved testing performance on specific computer tasks and conducting detailed analyses of the task demands imposed on the participants. The interface used by Internet Explorer (IE) was standardized into 16…

The comparison of Orthorater vision tester and Snellen chart far visual acuity results for 261 National Technical Institute for the Deaf (NTID) students. Results indicated that a rear illuminated Snellen chart is an acceptable alternative to the Orthorater for screening postsecondary, hearing impaired students' far visual acuity. (Author)

The project was designed to develop an alternate testing method for the visual acuity assessment of preschool children with handicaps. Additional project objectives included evaluation and modification of existing experimental procedures for discrimination training and visual acuity testing of preschool handicapped children; establishment of a…

Vision of 116 students, ages 6-19, with Down syndrome in the Brisbane (Australia) area was screened. Non-cycloplegic retinoscopy successfully assessed all the students for refractive error. Of the 99 children in special schools, about half did not show significant refractive error but 30 percent were farsighted, 14 percent nearsighted, and 21…

The predictive validity of the Simultaneous Technique for Acuity and Readiness Testing (START), a developmental screening approach, was assessed with school performance as outcome criterion. The sample consisted of over 1,000 rural, preschool children between 54 and 66 months of age who were screened over 3 successive years. Follow-up achievement…

A vision screening program established at a facility for 271 individuals with severe or profound mental retardation used the acuity card procedure as its measure. The procedure was found to be a valid and reliable screening tool for this population. A few residents had good visual acuities, whereas the acuities of others were poor. (JDD)

The visual acuity of 8 children, aged 2-7, with low vision and multiple handicaps was effectively tested using the Teller Acuity Cards and a preferential-looking procedure with operant modification. This inexpensive procedure was found to be suitable for at-home testing by itinerant vision specialists in developing countries or rural areas. (DB)

Low vision children (ages 4-19, n=137) were screened, and 77 percent were advised to have comprehensive clinical evaluations or ophthalmology services. The visual capability of the referred children was determined, low vision aids were prescribed for 56 children, and the degree of successful utilization of aids was evaluated. (JDD)

This study followed children retrospectively from kindergarten through 12th grade to examine incidence of abnormal school vision screening tests and rates of follow-up by specialists. School vision screening provided first indication of abnormal visual acuity in 76% of the children. Results support the notion that school vision screening is…