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Howell Phoria Card™


Item #: CDHP+

Professional Pricing Available to Registered Healthcare Professionals, Schools, & Government. Click on the blue info button for more details.

Howell Phoria Card™ provides a simple and efficient method for measuring horizontal phorias at both distance and near. Designed for use in free space or through a phoropter, the card utilizes an easy-to-read numbered scale and arrow indicator, allowing the patient to identify the number indicated by the arrow. The corresponding scale provides a direct phoria measurement without the need for complex interpretation.

Odd-numbered yellow markings correspond to esophoria measurements, while even-numbered blue markings correspond to exophoria measurements. The design allows rapid data collection and can also be used with trial lenses to assist in evaluating accommodative convergence relationships.

The reverse side of the near card includes an X-Cyl target along with a variety of letter and word targets, providing additional examination flexibility in a single convenient card.

Both Near and Distance versions include one 6Δ stick prism.

  • Measures horizontal phorias at near or distance
  • Can be used in free space or through a phoropter
  • Direct-reading numbered scale for quick measurement
  • Yellow odd-numbered scale indicates esophoria values
  • Blue even-numbered scale indicates exophoria values
  • Can be used with trial lenses when evaluating accommodative convergence relationships
  • Reverse side of near card includes X-Cyl target
  • Additional letter and word targets on near card
  • Includes one 6Δ stick prism
  • Near Card Size: Approximately 12" wide
  • Distance Chart Size: Approximately 24" wide

Disclaimer: Please note that the products offered on our website have not been evaluated or reviewed by the United States Food and Drug Administration (FDA), unless explicitly stated otherwise. The information provided on this website is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. The products offered on our website are not intended to replace or substitute any advice, diagnosis, or treatment provided by a qualified healthcare professional. It is strongly encouraged that any use of our products in an effort to improve visual skills only be done so under the guidance and supervision of a qualified healthcare professional. Although we at Bernell choose to sell our products exclusively to healthcare professionals as they are our target market, we strongly advise that anyone who may come across our products on a secondary market consult with a qualified healthcare professional before using any product. Additionally, we do not offer instructions for intended use, nor make claims for healthcare professionals, in how to diagnose, treat, cure, or prevent any disease or medical condition with our products. The majority of the items offered under vision therapy or vision training categories on this site fall under the FDA's General Wellness: Policy for Low-Risk Items. For safety reasons, we do not condone the use any of our products that occlude or restrict vision in any way while participating in activities that may require unrestricted vision.

Call Toll Free 1-800-348-2225 or (574) 259-2070

Fax to (574) 259-2102 or (574) 259-2103

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