Birch, J <br/><br/>
Clinical use of the American Optical Company (Hardy, Rand and Rittler) pseudoisochromatic plates for red-green colour deficiency.  [electronic resource] 

 -  Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)  May 1997 
 - 248-54 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0275-5408 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Color Perception Tests--instrumentation<br/>Color Vision Defects--classification<br/>Humans<br/>Male