About the book
Blindness knows no borders; over 45 million people in the world suffer from profound vision impairment. This is highest in developing nations where most of the people live in poor socioeconomic condition. A high proportion of blindness is preventable through public health measures and many other cases are treatable. In 2015, there were an estimated 253 million people with visual impairment worldwide. Of these, 36 million were blind and a further 217 million had moderate to severe visual impairment.
Impairment vs Disability vs Handicap
Impairment is a health problem exists where medical intervention could leads to cure with equal opportunity; if the medical problem persists this become “permanent” (dysfunctional) condition with disability (functional problem) and in such a case rehabilitation leads to equal opportunity. Handicap is a permanent social/community problem and a social participation/integration is needed (institutional/community-based rehabilitation, and special education and training).
Overall, there may be around 703 million people who are blind or have MSVI by the year 2050. A massive investment in eye health services, along with protection from out-of-pocket payments for the poorest sectors of society is needed, to ensure universal access to eye health for all. Assistance, cure and interaction with blind or visually impaired people is mandatory. Several oculars diseases are emerging as principal causes of unavoidable blindness, and strategies to address this important issue are new key points. Early diagnosis and adequate therapy for ocular disorders require specific technology, as well as long-term and permanent care.
Aim of this book is addressing different causes of visual impairment and blindness, their epidemiology, manifestations, risk factors, prevention of progression, and treatment.