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.
The average voltage being used in our homes to day is around 120-130 volts but all of the out lets are the same and all modern electric house hold items run fine on anything between 110 volts to 135 volts.But be sure the spa isn't a 220 volt. If it heats the water it most likely is 220V.est Answer: There is no difference in the two. Originally the voltage in the home voltage was 110 volts. As the power company's learned they could stay with in government safety guide lines and run up to 130 volts and use a smaller thickness wire in the power lines leading to our homes.