33
Participants
Start Date
August 31, 2015
Primary Completion Date
April 30, 2016
Study Completion Date
April 30, 2016
Selenium
A 100 micrograms of Selenium was given to be taken twice a day.
Placebo
Placebo pill of 100 micrograms of starch was given to be taken twice a day.
Instituto de Oftalmología Fundación Conde de Valenciana
OTHER