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  • Title: Comparison of the acceptance of progressive addition multifocal vs. a standard multifocal lens design.
    Author: Hitzeman SA, Myers CO.
    Journal: J Am Optom Assoc; 1985 Sep; 56(9):706-10. PubMed ID: 4056293.
    Abstract:
    An evaluation of the relative influence of the optical features of two forms of multifocal lenses, one of progressive power form and one of standard flat-top 25 bifocal form, is made upon a number of subjects. A comparison of acceptance was made with special emphasis on testing of intermediate range of vision and breadth of the near field. The progressive form of multifocal correction were overwhelmingly preferred over flat-top 25 bifocals. A preference was found for the optical advantage of acceptable vision at all distances over the disadvantages of narrower field afforded by the progressive multifocal design.
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