Study Finds Spinach, Eggs Ward Off Cause of Blindness

Tuesday, September 11, 2007

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Reuters

Two nutrients found in eggs, spinach and other leafy green vegetables offer some protection against the most common cause of blindness among the elderly, researchers said on Monday.

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According to the Gass classification, what differentiates a stage 3 macular hole from a stage 4 macular hole?
1. The fact that a stage 4 macular hole is greater than 400 microns
2. The fact that a stage 3 macular hole is greater than 400 microns
3. The fact that stage 3 macular holes are associated with a posterior vitreous detachment
4. The fact that stage 4 macular holes are associated with a posterior vitreous
... Check The Answer