Low Vision pp 190-208 | Cite as

Prescribing Magnification: Strategies for improving Accuracy and Consistency

  • Ian L. Bailey
Conference paper


All low vision practitioners develop their own individual approaches to prescribing magnifying devices. The simplest is the “cafeteria” approach in which the patient is presented with an array of low vision magnifiers and asked to make a selection. In time, the cafeteria will develop a corner delicatessan atmosphere with the proprietor proudly giving advice based on the experience and comments of previous customers. “Try this one, it seems stronger.” “Try moving closer, that often helps.” “See if it looks better through the bifocal part of your glasses.” In contrast, trained professionals prefer to use systems based on measurements of resolution ability, magnification effects, tests of performance and judgements of comfort and convenience.


Visual Acuity Enlargement Ratio Magnification Effect Reading Chart Size Progression 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag New York Inc. 1987

Authors and Affiliations

  • Ian L. Bailey

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