Ma, Le <br/><br/>
Effect of lutein and zeaxanthin on macular pigment and visual function in patients with early age-related macular degeneration.  [electronic resource] 

 -  Ophthalmology  Nov 2012 
 - 2290-7 p.  digital 
<br/><br/> Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1549-4713 
<br/><br/><label>Standard No.: </label>10.1016/j.ophtha.2012.06.014  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Contrast Sensitivity<br/>Dietary Supplements<br/>Dose-Response Relationship, Drug<br/>Double-Blind Method<br/>Drug Therapy, Combination<br/>Feeding Behavior<br/>Female<br/>Humans<br/>Lutein--administration & dosage<br/>Macular Degeneration--drug therapy<br/>Male<br/>Middle Aged<br/>Photic Stimulation<br/>Prospective Studies<br/>Retina--physiology<br/>Retinal Pigments--metabolism<br/>Rhodopsin--metabolism<br/>Surveys and Questionnaires<br/>Visual Acuity--physiology<br/>Xanthophylls--administration & dosage<br/>Zeaxanthins