purpose: to estimate the magnitude and causes of visual impairment (vi) in subjects aged ≥ 50 years in varamin district in 2009 using the proposed method by the world health organization (who). method: this cross sectional population based survey was performed in varamin targeting people over the age of 50 years using the proportional probabilities to size and cluster compact segment sampling m...

objectives: the present study has been conducted to determine the effectiveness of cognitivebehavioral group-therapy on the development of visually impaired adolescents' self-concept. methods: this study is a semi-experimental pre-test and post-test model. the study population consisted of visually impaired male students of the primary and secondary high school at the omid-e-mashhad educational...

The loss of vision restrained the visually impaired people from performing their daily task. This issue has impeded free-movement and turned them into dependent a person. People in this sector did not face technologies revamping situations. With advent computer vision, artificial intelligence, situation improved to great extent. propounded design is an implementation wearable device which capab...