Introduction: This study aims to assess the prevalence of visual impairment and refractive error among learners who are deaf or hard of hearing in schools for Deaf students in Ghana. Methods: A descriptive cross-sectional study design was used to assess the distance visual acuity with the logMAR "E" chart, and ocular health was assessed…

The focus of this quantitative study was on analyzing the self-concept of the students with visual impairment in Lahore (Pakistan). A modified self-description questionnaire used by Jayne E. Stake (1992) was used to assess the six subscales (Likability, Task accomplishment, Morality, Power, Giftedness and Vulnerability) of the self-concept of the…

This study investigated the self-concept of students with vision impairment who were placed in specialist and mainstream educational settings in South Australia. Self-Concept was explored across six dimensions, namely Physical, Moral, Personal, Family, Social and Academic Self-Concepts and the Total Self-Concept. The "Tennessee Self-Concept…

The present longitudinal study analyzed the effects of domain-specific goal engagement on the attainment of four developmental goals in 133 adolescents with visual impairment and in 449 sighted peers. Goal engagement predicted stronger progress in goal attainment with regard to getting access to a peer group, career choice and development of…

In the present study, the aim was to examine the differences in performance between children and adolescents with visual impairment and sighted peers in the water-level task. Twenty-eight individuals with visual impairments, 14 individuals with blindness and 14 individuals with low vision, and 28 sighted individuals participated in the present…

This study was planned in order to determine physical activity levels of visually impaired children and adolescents and to investigate the effect of gender and level of vision on physical activity level in visually impaired children and adolescents. A total of 30 visually impaired children and adolescents (16 low vision and 14 blind) aged between…

The purpose of this study was to investigate the long-term use of optical devices by individuals who participated in a school-based comprehensive low vision program focusing on use of devices, both near and distance. Thirty-seven participants (five non-users), ages 18-28, completed phone interviews giving information on their personal…

Loss of vision is believed to have a great impact on the acquisition of spatial knowledge. The aims of the present study are to examine the performance of individuals with visual impairments on spatial tasks and the impact of residual vision on processing these tasks. In all, 28 individuals with visual impairments--blindness or low…

The aim of this study is to examine the performance in coding and representing of near-space in relation to vision status (blindness vs. normal vision) and sensory modality (touch vs. vision). Forty-eight children and teenagers participated. Sixteen of the participants were totally blind or had only light perception, 16 were blindfolded sighted…

Pediatric View is an evaluation project that began in 1999 and is located at Western Pennsylvania Hospital in Pittsburgh. The purpose of Pediatric View is to provide developmental and functional vision evaluations to children who have ocular or cortical visual impairments. The evaluations are generally two hours in length, and a detailed report…

This research was conducted in order to examine the influence of manifest strabismus and stereoscopic vision on non-verbal abilities of visually impaired children aged between 7 and 15. The sample included 55 visually impaired children from the 1st to the 6th grade of elementary schools for visually impaired children in Belgrade. RANDOT stereotest…

Children with neurological impairments often have visual deficits that are difficult to quantify. We have compared visual skills evaluated by carers with results of a comprehensive visual assessment. Participants were 76 children with mild to profound intellectual and/or motor impairment (33 males, 43 females; age range 7mo-16y; mean age 5y 1mo…

This study aimed to investigate whether there were differences in self-concept among adolescents with low vision due to gender. The sample population consisted of (23) adolescents, 12 (10 males and 13 females) aged 12-17 years in the first year of secondary school. The researcher used the Tennessee Self-Concept Scale (TSCS) for the evaluation of…

The prevalence of color vision deficiencies among youths 12 to 17 years of age in the United States was evaluated during a 1966-1970 survey of 6,768 youths selected as representative of noninstitutionalized adolescents with respect to age, sex, race, geographic region, income, population size of place of residence, and rate of population change in…

Through seriation, verbal seriation, and conservation tasks, investigated blind, partially sighted, and sighted children's understanding of quantity. Subjects were 81 children equally dispersed through these 3 groups. Age range was 4 to 17 years. Found similarity in concept acquisition among three groups that extended beyond quantity conservation…