You can learn more about how the Illinois income tax compares to other states' income taxes by visiting our map of income taxes by state. The Illinois income tax was lowered from 5% to 3.75% in 2015. Previously, the tax rate was raised from 3% to 5% in early 2011 as part of a statewide plan to reduce deficits.
Cure for rare form of color blindness steps closer with novel gene insight. In a new study published in PLOS ONE, researchers have uncovered novel insights into two genetic mutations that may be a cause of a rare form of color blindness called achromatopsia, paving the way for a cure for the condition.
What is Color-Blindness. Color-blindness is the inability to distinguish the differences between certain colors. This condition results from an absence of color-sensitive pigment in the cone cells of the retina, the nerve layer at the back of the eye.(See  Look Inside the Eye.he most common type is red-green color-blindness, where red and green are seen as the same color. Here are some illustrations of the most common forms of color-blindness: The colors of the rainbow.