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Health is Wealth

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Blindness

    W.H.O defines blindness as “ VISUAL ACTIVITY OF LESS THAN 3/60 ( SNELLEN SSCALE) Or its equivalent or in absence of the chart testing “ INABILITY TO COUNT FINGERS IN DAYLIGHT AT A DISTNJACE OF 3 METERS “.

    INCIDENCE : -

    2 Million cases of cataract induced blindness in the country.

    CAUSES OF BLINDNESS :-

    1. CATARACT : The principal cause response for 50% to 90% all cases . Cataract occurs more frequently in advancing age . it is curable by surgery.
    2. TRACHOMA : Estimated cases are about 86 million in India.
    3. MALNUTRITION : Vit – A deficiency can result in permanent blindness.
    4. OTHERS : 1.2% of cases in India are due to eye injuries.

    HOST FACTORS:

    Trachoma, conjunctivitis and malnutrition’s are important. Causes blindness in children. Cataract, glaucoma and diabetes are causes of blindness in middle age. Accidents and injuries can occur in any age.

    OCCUPATION :

    Industrial and agricultural workers and those who work with machines are at great risk.

    SOCIAL:

    Twice more common in poorer classes.

    Social Factors :-

    1. Ignorance
    2. Poverty
    3. Poor hygienic
    4. Lack of health services.

    PREVENTION:-

    By improving nutrition Ex: Vit – A supplement .Proper treatment of infectious diseases. Implementation of safety standards , use of safety devices.

    PRIMARY EYE CARE : -

    Locally trained health worker can treat eye infection at grass root level.

    SECONDARY CARE :-

    Conducting eye camps, identifying the cataract and other cases and treating them. Voluntary and govt health services are doing this service.

    TERTIARY CARE:-

    At medical colleges and referral eye hospitals at national level.

    SPECIFIC PROGRAMME :-

    Trachoma control, School eye health services, Vit – A supplements as prophylaxis.

     

 
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