Perimetric Standards and Perimetric Glossary

1. Definitions of Perimetry and of the Visual Field.- 2. Need for Specifications and Tolerance.- 3. Applicability of this Standard.- 4. Specifications of Magnitudes and Units.- 5. Photometric Specification.- 6. Background or Adapting Luminance.- A. Specification of luminance.- B. Preadaptation conditions.- C. Diffusely reflecting surface.- 7. Specification of the Location of an Object in the Visual Field.- 8. Target Specification (non-photometric).- A. Size, distance and form.- B. Contrast.- C. Duration of presentation.- 1. Non-moving or static targets.- 2. Moving or kinetic targets.- D. Image sharpness.- 9. Color Perimetry.- 10. Other Factors.- A. Attention signal and shutter noise.- B. Distractions to be avoided.- C. Relative and absolute scotomas.- 11. Acceptance and Revision of these Standards.