Hemphälä, H <br/><br/>
Optimal correction in spectacles: intervention effects on eyestrain and musculoskeletal discomfort among postal workers.  [electronic resource] 

 -  Work (Reading, Mass.)  Jan 2014 
 - 329-37 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1875-9270 
<br/><br/><label>Standard No.: </label>10.3233/WOR-131773  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Asthenopia--prevention & control<br/>Eyeglasses<br/>Female<br/>Humans<br/>Male<br/>Middle Aged<br/>Musculoskeletal Pain--prevention & control<br/>Occupational Diseases--prevention & control<br/>Postal Service<br/>Posture<br/>Vision Disorders--therapy