Krefman, R A <br/><br/>
A comparative evaluation of Readables to single vision lenses.  [electronic resource] 

 -  Journal of the American Optometric Association  Sep 1991 
 - 676-9 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0003-0244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Evaluation Studies as Topic<br/>Eyeglasses<br/>Humans<br/>Middle Aged<br/>Optics and Photonics<br/>Presbyopia--therapy<br/>Reading