The Major Causes of Blindness

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Dr. Alfred Sommer presents a four-part lecture on the major causes of preventable blindness: mature cataract, onchocerciasis, xerophthalmia, and trachoma.

 

To view this lecture, click on the photo below or this link:  http://enforme.http.internapcdn.net/enforme_vitalstream_com/Bloomberg_2_1/story.html

 

sommer blindness