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Vision 2020: moving beyond blindness.

Susan Lewallen1, Van Lansingh2, R D Thulasiraj3

  • 1Kilimanjaro Centre for Community Ophthalmology, Department of Ophthalmology, University of Cape Town, South Africa slewallen@kcco.net.

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Summary
This summary is machine-generated.

Many countries define blindness more strictly than the World Health Organization (WHO) due to modern visual demands. Meeting these higher standards requires advanced healthcare worker training and equipment for primary eye care.

Keywords:
BlindnessEye careVision 2020Visual acuity

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Area of Science:

  • Ophthalmology
  • Public Health
  • Healthcare Policy

Background:

  • The World Health Organization (WHO) provides a standard definition for blindness.
  • Industrialized and emerging economies often use stricter visual acuity criteria than the WHO definition.
  • Modern societal visual demands exceed those considered in historical definitions of blindness.

Purpose of the Study:

  • To analyze the divergence in blindness definitions between the WHO and various countries.
  • To highlight the impact of evolving societal visual needs on eye care standards.
  • To underscore the implications for healthcare workforce and technology in primary eye care.

Main Methods:

  • Comparative analysis of international blindness definitions.
  • Review of current visual acuity standards and their societal relevance.
  • Assessment of healthcare resource requirements for updated eye care protocols.

Main Results:

  • A significant number of countries adopt a higher visual acuity threshold for blindness than the WHO.
  • This discrepancy is driven by increased visual demands in daily life, including technology use and driving.
  • Current primary eye care provisions may be insufficient to meet these elevated visual standards.

Conclusions:

  • National definitions of blindness are adapting to contemporary visual requirements.
  • There is a critical need for enhanced training for eye care professionals.
  • Investment in advanced diagnostic and treatment equipment is essential for effective primary eye care.