CRAO is considered a stroke of the eye. Studies show that about two-thirds of patients have underlying high blood pressure and one-fourth of patients will have significant carotid artery disease (plaque with narrowing of the artery lining), cardiac valvular disease or diabetes.
Electrical pressure is measured in volts, or voltage. All electrical devices are rated for specific voltages. Most devices and small appliances in a home are rated for 120 volts, while high-voltage appliances, such as electric dryers, ranges, and many baseboard heaters, are rated for 240 volts.
On average, a home in the US uses 911 kWh of electricity per month. By taking this number and multiplying it by the cost per kWh of a given month, we can estimate the cost of residential electricity for any state. As an example, each home in Mississippi was mailed an electric bill of $100.21 (11 cents x 911 kWh) on average for March 2017.