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Good Quality Images

To ensure that high quality images are taken during screening. The National Screening Committee (NSC) Grading and Quality Assurance Subcommittee, set out the following guidelines in May 2006.

Definition of acceptable image quality:

  • Photographers should capture 2 x nominal 45º fields per eye (1 x fovea centred, 1 x disc centred).
  • A combined assessment of field position and image quality should be made for each eye.
  • Images must be utilised only if the grader is confident the quality is sufficient.
  • All grading is to be performed by trained and accredited staff
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