Glaucoma is a group of eye diseases which result in damage to the optic nerve and vision loss. The most common type is open-angle glaucoma with less common types including closed-angle glaucoma and normal-tension glaucoma. Open-angle glaucoma develops slowly over time and there is no pain.
effective income tax rate. Definition. The actual rate at which a taxpayer pays taxes on income accounting for all taxes and offsets. The rate is calculated by dividing the total of all taxes paid, less offsets, by the total taxable income. The effective rate is typically lower than the tax bracket, which is currently based on a progressive rate scale. For example, a person in the 28% tax bracket who paid a total of state and federal taxes of $13,000 on $100,000 of taxable income has an effective tax rate of 13%.
Marginal tax rate generally refers to the rate of tax to be incurred on the next dollar of income (or the value of the next incremental dollar of deduction), whereas effective rate generally refers to the amount of your overall tax as a percentage of your overall income.