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GLT Good Lite RAF Royal Air Force Rule Convergence Rule P14350163GLT-537800 https://cdnimages.opentip.com/full/GLT/GLT-537800.jpg Good Lite RAF Royal Air Force Rule Convergence Rule The RAF Rule (Royal Air Force Rule) provides a binocular gauge to measure Objective and Subjective Convergence as well as accommodation in 1 mm increments. The RAF Rule consists of a 50 cm long rule with a slider holding a rotating four-sided cube. Each side has a different target: the first has a vertical line with a central dot for convergence fixation and the other provides a limited number of lines of near-reading examples.A rest is provided for the cheek to ensure consistency and proper height for the patient. Some studies have shown greater consistency of the NPC when measured with the RAF Rule compared to using a pencil or finger.This instrument is used for determining the objective and subjective convergence points, examining the accommodation, and determining the master eye. The RAF Rule is useful for both diagnosis and treatment.This instrument has four sides that have different measurements or functions:One side features diopter measurements from 20 to 2One side features a ruler from 5 to 50 centimetersOne side that tests ages 8 through 48One side that tests for convergence, normal, reduced, and defectiveClick here for the 537800 Guide.Click here for the Accommodation Rule Technical Bulletin. 14350163 10.0000lbs 0.00 0.00 0.00
Good-Lite
415.1400 2025-07-27 In Stock

Good-Lite RAF (Royal Air Force Rule) Convergence Rule, Price/each

Brand Good-Lite
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SKU: GLT-537800
Price: $415.14
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In Stock
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Product Description

Price is for each.

The RAF Rule (Royal Air Force Rule) provides a binocular gauge to measure Objective and Subjective Convergence as well as accommodation in 1 mm increments. The RAF Rule consists of a 50 cm long rule with a slider holding a rotating four-sided cube. Each side has a different target: the first has a vertical line with a central dot for convergence fixation and the other provides a limited number of lines of near-reading examples.

A rest is provided for the cheek to ensure consistency and proper height for the patient. Some studies have shown greater consistency of the NPC when measured with the RAF Rule compared to using a pencil or finger.

This instrument is used for determining the objective and subjective convergence points, examining the accommodation, and determining the master eye. The RAF Rule is useful for both diagnosis and treatment.

This instrument has four sides that have different measurements or functions:
  • One side features diopter measurements from 20 to 2
  • One side features a ruler from 5 to 50 centimeters
  • One side that tests ages 8 through 48
  • One side that tests for convergence, normal, reduced, and defective

Click here for the 537800 Guide.

Click here for the Accommodation Rule Technical Bulletin.

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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