Cerebral visual impairment (CVI) is one of the leading causes of severe visual impairment in childhood. This article was written to highlight any new knowledge related to cerebral visual impairment in childhood.The international literature was searched to describe the type of visual, oculomotor and / or visuo-perceptual disturbances and to discuss the prognosis. CVI children show a wide range o...

Feature search performance was measured in visually impaired (VI) and age-matched controls with normal vision (NV). All VI subjects were legally blind. The task was to search for a 2 degrees x 2 degrees square target among smaller 1 degrees x1 degrees distracters. Targets and distracters were white and presented on a dark background that subtended 69 degrees by 58 degrees . Three field-sizes (1...

BACKGROUND Although previous studies have shown detrimental effects of visual impairment on health-related quality of life (HRQOL), they were primarily conducted on elderly individuals with visual impairment. The objective of this cross-sectional study was to investigate if HRQOL is impaired in young college students with visual impairment and to explore the relationships between HRQOL and othe...

BACKGROUND Childhood visual impairment (CVI) has not been given due attention. Knowledge of CVI is important in planning preventive measures. The aim of this study was determine the prevalence, etiology and the factors associated with childhood visual impairment among the children attending the eye clinic in Mulago National Referral Hospital. METHODS This was a cross sectional hospital based ...

OBJECTIVE To determine the prevalence of eye diseases and visual impairment among new patients at the eye clinic of Hospital Sultan Haji Ahmad Shah, Temerloh, Pahang. METHOD In this cross-sectional prospective study, 1081 new patients were examined over a period of six months. Age, gender, ethnicity, visual acuity and diagnosis were noted from the medical records. RESULTS Out of 1081 examin...

Corticobasal syndrome (CBS) is the clinical presentation of corticobasal degeneration (CBD), a rare neurodegenerative disorder, with features of both cerebral and basal ganglia involvement. Visual disturbance is uncommonly a predominant symptom but when present can be markedly debilitating. Visual findings primarily manifest as oculomotor apraxia, but significant cognitive impairment may result...

BACKGROUND This study addresses the question to what extent visual impairment leads to additional disability in adults with intellectual disabilities (ID). METHOD In a multi-centre cross-sectional study of 269 adults with mild to profound ID, social and behavioural functioning was assessed with observant-based questionnaires, prior to expert assessment of visual function. With linear regressi...

The developmental, optometric, and practical issues that govern clinical examination of vision from birth to 5 years and their bearing upon diagnostic and surveillance practice is discussed. Our current understanding is that minor defects of the visual system do not significantly constrain general developmental progress or early visual development while severe visual impairment can seriously im...

BACKGROUND The existing definitions of visual impairment in the International Statistical Classification of Diseases are based on recommendations made over 30 years ago. New data and knowledge related to visual impairment that have accumulated over this period suggest that these definitions need to be revised. DISCUSSION Three major issues need to be addressed in the revision of these definit...