An important advance in the study of Goldman-Favre Syndome has revealed the basis for the visual disorder. The rare disease causes night blindness and other visual symptoms, and is passed down through families. The research has discovered which cell types malfunction, and the process that goes wrong. A new research report published in The FASEB… [Continue Reading]
Vitamin A Information
July 24, 2010 By 3 Comments
What is Vitamin A? What foods provide vitamin A? What are recommended intakes of vitamin A? When can vitamin A deficiency occur? Who may need extra vitamin A to prevent a deficiency? What are some current issues and controversies about vitamin A? What are the health risks of too much vitamin A? What are the… [Continue Reading]
3-D Images of Eyes Developed to Reveal Details of Macular Degeneration
March 20, 2009 By Leave a Comment
To get a better look at the abnormalities that cause age-related macular degeneration, the leading cause of vision loss in Americans and Europeans over 50, researchers have created ultra-detailed 3-D images of the eyes of more than 2,000 people from different ethnic groups, 400 of whom have macular degeneration. Macular degeneration is a condition in… [Continue Reading]
The Underlying Neural Mechanism in Macular Degeneration
March 4, 2009 By Leave a Comment
In macular degeneration, the most common form of adult blindness, patients progressively lose vision in the center of their visual field, thereby depriving the corresponding part of the visual cortex of input. Previously, researchers discovered that the deprived neurons begin responding to visual input from another spot on the retina, evidence of plasticity in the… [Continue Reading]